Data Science Lead at Flo Health - London 400M+ downloads. 75M+ monthly users. A decade of building - and we're still accelerating. Flo is the world's health app on a mission to build a better future for female health. Backed by a $200M investment led by General Atlantic, we became the first product of our kind to reach a $1B valuation in 2024 - and we're not slowing down. With 6M paid subscribers and the highest rated experience in the App Store's health category, we've spent 10 years earning trust at scale. Now, we're building the next generation of digital health - AI powered, privacy first, clinically backed - to help our users know their body better. The job We're not chasing a product - market fit. We've found it. Flo is used by 1 in 4 women aged 18-44 in the US. Last year, $200M raised. Earlier this year: 8.6M new installs, 2.8M user jump. That kind of scale doesn't just happen. It's engineered - and increasingly, it's predicted. That's where you come in. We're hiring a Data Science Lead in London to build and lead our Predictive Growth Optimization team - pioneering ML models that power our user acquisition strategy, predict lifetime value, and optimise our $25M+ annual marketing spend across channels. This role owns the strategy, development, and continuous improvement of Flo's pLTV system - a mission critical model reused across UA, AdTech, personalization, and financial forecasting. You'll balance hands on technical leadership with people management, building production systems that directly impact our growth trajectory. What you'll do Lead & develop a team of 4+ ML and Backend engineers - hiring, mentoring, and setting technical direction Own pLTV strategy - architect and evolve our core predictive lifetime value models that inform millions in UA decisions Build production ML systems - from MMM algorithms to real time forecasting models handling millions of daily predictions Drive cross functional impact - partner with Growth, Product, and Finance to translate business problems into ML solutions Shape technical architecture - guide MLOps infrastructure, monitoring, and rapid iteration cycles Stay hands on - contribute to modeling, architecture decisions, and technical problem solving as needed What you bring Technical Leadership 7+ years applied ML experience building and deploying models in production 4+ years managing technical teams (ML engineers, data scientists, or similar) Expert knowledge of ML fundamentals: supervised/unsupervised learning, time series, causal inference Experience with modern ML frameworks (PyTorch, TensorFlow, scikit learn, CatBoost) Growth & Product Experience Experience with growth analytics, attribution modeling, or marketing effectiveness Understanding of user acquisition funnels and retention optimization Comfortable translating business requirements into technical roadmaps Strong communication skills - can explain complex models to executive stakeholders Production ML Systems Experience deploying ML models at scale (millions+ predictions/day) Knowledge of MLOps practices: model versioning, monitoring, automated retraining Understanding of data engineering fundamentals and cloud platforms Nice to have Experience with Marketing Mix Modeling, attribution, or ad tech Background in consumer tech, mobile apps, or health tech Knowledge of privacy preserving ML techniques and A/B testing methodology How we work We're a mission led, product driven team. We move fast, stay focused and take ownership - from brief to build to impact. Debate is encouraged. Decisions are shared. We care about craft, ship with purpose, and always raise the bar. You'll be working with people who take their work seriously, not themselves. It takes commitment, resilience, and the drive to keep going when things get tough. Because better health outcomes are worth it. What you'll get We support impact with meaningful reward. Here's what that looks like: Competitive salary and annual reviews Opportunity to participate in Flo's performance incentive scheme Paid holiday, sick leave, and female health leave Enhanced parental leave and pay for maternity, paternity, same sex and adoptive parents Accelerated professional growth through world changing work and learning support Flexible office + home working, up to 2 months a year working abroad 5 week fully paid sabbatical at 5 year Floversary Flo Premium for friends & family, plus more health, pension and wellbeing perks Diversity, equity and inclusion Our strength is in our differences. At Flo, hiring is based on merit, skill and what you bring to the role - nothing else. We're proud to be an equal opportunity employer, and we welcome applicants from all backgrounds, communities and identities. Read our privacy notice for job applicants. Join now and stay informed with weekly updates on new AI tools and breaking AI news! By joining you agree to with our Privacy Policy and provide consent to receive updates from our Victrays.
Jan 09, 2026
Full time
Data Science Lead at Flo Health - London 400M+ downloads. 75M+ monthly users. A decade of building - and we're still accelerating. Flo is the world's health app on a mission to build a better future for female health. Backed by a $200M investment led by General Atlantic, we became the first product of our kind to reach a $1B valuation in 2024 - and we're not slowing down. With 6M paid subscribers and the highest rated experience in the App Store's health category, we've spent 10 years earning trust at scale. Now, we're building the next generation of digital health - AI powered, privacy first, clinically backed - to help our users know their body better. The job We're not chasing a product - market fit. We've found it. Flo is used by 1 in 4 women aged 18-44 in the US. Last year, $200M raised. Earlier this year: 8.6M new installs, 2.8M user jump. That kind of scale doesn't just happen. It's engineered - and increasingly, it's predicted. That's where you come in. We're hiring a Data Science Lead in London to build and lead our Predictive Growth Optimization team - pioneering ML models that power our user acquisition strategy, predict lifetime value, and optimise our $25M+ annual marketing spend across channels. This role owns the strategy, development, and continuous improvement of Flo's pLTV system - a mission critical model reused across UA, AdTech, personalization, and financial forecasting. You'll balance hands on technical leadership with people management, building production systems that directly impact our growth trajectory. What you'll do Lead & develop a team of 4+ ML and Backend engineers - hiring, mentoring, and setting technical direction Own pLTV strategy - architect and evolve our core predictive lifetime value models that inform millions in UA decisions Build production ML systems - from MMM algorithms to real time forecasting models handling millions of daily predictions Drive cross functional impact - partner with Growth, Product, and Finance to translate business problems into ML solutions Shape technical architecture - guide MLOps infrastructure, monitoring, and rapid iteration cycles Stay hands on - contribute to modeling, architecture decisions, and technical problem solving as needed What you bring Technical Leadership 7+ years applied ML experience building and deploying models in production 4+ years managing technical teams (ML engineers, data scientists, or similar) Expert knowledge of ML fundamentals: supervised/unsupervised learning, time series, causal inference Experience with modern ML frameworks (PyTorch, TensorFlow, scikit learn, CatBoost) Growth & Product Experience Experience with growth analytics, attribution modeling, or marketing effectiveness Understanding of user acquisition funnels and retention optimization Comfortable translating business requirements into technical roadmaps Strong communication skills - can explain complex models to executive stakeholders Production ML Systems Experience deploying ML models at scale (millions+ predictions/day) Knowledge of MLOps practices: model versioning, monitoring, automated retraining Understanding of data engineering fundamentals and cloud platforms Nice to have Experience with Marketing Mix Modeling, attribution, or ad tech Background in consumer tech, mobile apps, or health tech Knowledge of privacy preserving ML techniques and A/B testing methodology How we work We're a mission led, product driven team. We move fast, stay focused and take ownership - from brief to build to impact. Debate is encouraged. Decisions are shared. We care about craft, ship with purpose, and always raise the bar. You'll be working with people who take their work seriously, not themselves. It takes commitment, resilience, and the drive to keep going when things get tough. Because better health outcomes are worth it. What you'll get We support impact with meaningful reward. Here's what that looks like: Competitive salary and annual reviews Opportunity to participate in Flo's performance incentive scheme Paid holiday, sick leave, and female health leave Enhanced parental leave and pay for maternity, paternity, same sex and adoptive parents Accelerated professional growth through world changing work and learning support Flexible office + home working, up to 2 months a year working abroad 5 week fully paid sabbatical at 5 year Floversary Flo Premium for friends & family, plus more health, pension and wellbeing perks Diversity, equity and inclusion Our strength is in our differences. At Flo, hiring is based on merit, skill and what you bring to the role - nothing else. We're proud to be an equal opportunity employer, and we welcome applicants from all backgrounds, communities and identities. Read our privacy notice for job applicants. Join now and stay informed with weekly updates on new AI tools and breaking AI news! By joining you agree to with our Privacy Policy and provide consent to receive updates from our Victrays.
Front End Developer - Vue.js - Outside IR35 Front End Developer required on a 6-month contract by a leading data-driven software and analytics organisation based in Manchester. Your new role: You'll be joining a highly collaborative development team within a global organisation recognised for delivering advanced digital products used across the insurance and risk-analysis sectors. They're continuing a major transformation of their customer-facing platforms, and you'll play a key part in building fast, modern, and scalable frontend applications. You'll lead the frontend development stream, bringing strong commercial experience with Vue 3 and TypeScript. You'll be heavily involved in requirements gathering, architectural discussions, development, and delivery. Close collaboration with designers, backend engineers, project leadership, and business stakeholders will be essential to ensure successful delivery against tight deadlines. You'll need a strong background in building high-performance, modern interfaces and be comfortable working in a technically mature environment. Required Skills: TypeScript Vue, Nuxt Experience integrating and working with APIs authentication, REST, RPC, GraphQL, tRPC The Rate: For the right person, the day rate is 450 - 500 , Outside IR35 . This is a hybrid role based in Manchester , with an initial 6-month contract and strong potential for extension. If you're keen to join a brand-new build and contribute from the ground up, it would be great to hear from you. Apply now or reach out to Andy at Cathcart Technology for more information. Cathcart Technology is acting as an Employment Business in relation to this vacancy.
Jan 09, 2026
Contractor
Front End Developer - Vue.js - Outside IR35 Front End Developer required on a 6-month contract by a leading data-driven software and analytics organisation based in Manchester. Your new role: You'll be joining a highly collaborative development team within a global organisation recognised for delivering advanced digital products used across the insurance and risk-analysis sectors. They're continuing a major transformation of their customer-facing platforms, and you'll play a key part in building fast, modern, and scalable frontend applications. You'll lead the frontend development stream, bringing strong commercial experience with Vue 3 and TypeScript. You'll be heavily involved in requirements gathering, architectural discussions, development, and delivery. Close collaboration with designers, backend engineers, project leadership, and business stakeholders will be essential to ensure successful delivery against tight deadlines. You'll need a strong background in building high-performance, modern interfaces and be comfortable working in a technically mature environment. Required Skills: TypeScript Vue, Nuxt Experience integrating and working with APIs authentication, REST, RPC, GraphQL, tRPC The Rate: For the right person, the day rate is 450 - 500 , Outside IR35 . This is a hybrid role based in Manchester , with an initial 6-month contract and strong potential for extension. If you're keen to join a brand-new build and contribute from the ground up, it would be great to hear from you. Apply now or reach out to Andy at Cathcart Technology for more information. Cathcart Technology is acting as an Employment Business in relation to this vacancy.
An exciting opportunity has arisen for a Senior Software Engineer to join a well-established biotech company using large-scale genetic data and AI to predict disease risk and advance precision healthcare. As a Senior Software Engineer, you will be contributing to the development and scaling of secure, reliable software in a collaborative, agile environment. This is a contract-based role (12 weeks) offering hybrid / remote working options, a salary range of £500 - £700 per day (Inside IR35) and benefits. You will be responsible for: Building and scaling new software products within an agile squad. Supporting the delivery of innovative health-tech services that positively impact society. Collaborating closely with cross-functional teams including product, UX, and engineering leads. Applying engineering expertise across backend and full-stack development. What we are looking for Previously worked as a Software Engineer, Backend Engineer, Full Stack Developer, Backend Developer, Cloud Engineer, Python Developer, Node.js Developer, Platform Engineer, Infrastructure Engineer or in a similar role. Strong background in cloud-hosted web applications and backend services. Expertise in Node.js, Ruby on Rails, Python; knowledge of Golang or Typescript is advantageous. Experience with agile methodologies, Git, and GitHub workflows. Competence in developing and maintaining large-scale web applications, both frontend and backend. Familiarity with CI/CD pipelines, test-driven development, and code reviews. Proficient in data modelling and relational databases such as PostgreSQL. Experience with Infrastructure as Code, particularly Terraform. Knowledge of cloud platforms including Azure (preferred), AWS, or GCP. Understanding of security and regulatory requirements in software design. This is a unique opportunity to join a forward-thinking tech team and make a tangible difference. Apply now to be part of this exciting venture. Important Information: We endeavour to process your personal data in a fair and transparent manner. In applying for this role, Additional Resources will be acting in your best interest and may contact you in relation to the role, either by email, phone, or text message. For more information see our Privacy Policy on our website. It is important you are aware of your individual rights and the provisions the company has put in place to protect your data. If you would like further information on the policy or GDPR please contact us. Additional Resources Ltd is an Employment Business and an Employment Agency as defined within The Conduct of Employment Agencies & Employment Businesses Regulations 2003.
Jan 08, 2026
Contractor
An exciting opportunity has arisen for a Senior Software Engineer to join a well-established biotech company using large-scale genetic data and AI to predict disease risk and advance precision healthcare. As a Senior Software Engineer, you will be contributing to the development and scaling of secure, reliable software in a collaborative, agile environment. This is a contract-based role (12 weeks) offering hybrid / remote working options, a salary range of £500 - £700 per day (Inside IR35) and benefits. You will be responsible for: Building and scaling new software products within an agile squad. Supporting the delivery of innovative health-tech services that positively impact society. Collaborating closely with cross-functional teams including product, UX, and engineering leads. Applying engineering expertise across backend and full-stack development. What we are looking for Previously worked as a Software Engineer, Backend Engineer, Full Stack Developer, Backend Developer, Cloud Engineer, Python Developer, Node.js Developer, Platform Engineer, Infrastructure Engineer or in a similar role. Strong background in cloud-hosted web applications and backend services. Expertise in Node.js, Ruby on Rails, Python; knowledge of Golang or Typescript is advantageous. Experience with agile methodologies, Git, and GitHub workflows. Competence in developing and maintaining large-scale web applications, both frontend and backend. Familiarity with CI/CD pipelines, test-driven development, and code reviews. Proficient in data modelling and relational databases such as PostgreSQL. Experience with Infrastructure as Code, particularly Terraform. Knowledge of cloud platforms including Azure (preferred), AWS, or GCP. Understanding of security and regulatory requirements in software design. This is a unique opportunity to join a forward-thinking tech team and make a tangible difference. Apply now to be part of this exciting venture. Important Information: We endeavour to process your personal data in a fair and transparent manner. In applying for this role, Additional Resources will be acting in your best interest and may contact you in relation to the role, either by email, phone, or text message. For more information see our Privacy Policy on our website. It is important you are aware of your individual rights and the provisions the company has put in place to protect your data. If you would like further information on the policy or GDPR please contact us. Additional Resources Ltd is an Employment Business and an Employment Agency as defined within The Conduct of Employment Agencies & Employment Businesses Regulations 2003.
Role: Node.JS Engineer Positions: 5 Location: 2 Days in Belfast per week (BT2) Salary bands: £50k to £75k Start Date: ASAP A client of iO's is a dynamic and innovative company operating in the technology space in Belfast who are looking for multiple Node.JS Software Engineers to join them on a Permanent basis. The client are now growing their technical team to develop the next generation of Design Systems that seamlessly integrate with AI/agents with the Public Sector so you will need to be SC Clearable to be considered. Responsibilities Develop and maintain Server Side logic using NodeJS Collaborate with Front End developers to integrate user-facing elements with Server Side logic Implement security and data protection measures Conduct code reviews and provide feedback for improvements Essential Skills & Experience Proven experience with NodeJS and Back End development Strong understanding of asynchronous programming Proficient in database technologies such as MySQL or MongoDB Experience with version control systems like Git Desirable Skills & Experience Familiarity with microservices architecture Knowledge of Docker and containerization Experience working in an Agile environment Call to Action If you have the necessary skills and experience for this role, we encourage you to apply by submitting your CV. Join Our Client and be part of an exciting and innovative team pushing the boundaries of technology. Role: Node.JS Engineer Positions: 5 Location: 2 Days in Belfast per week (BT2) Salary bands: £50k to £75k Start Date: ASAP
Jan 08, 2026
Full time
Role: Node.JS Engineer Positions: 5 Location: 2 Days in Belfast per week (BT2) Salary bands: £50k to £75k Start Date: ASAP A client of iO's is a dynamic and innovative company operating in the technology space in Belfast who are looking for multiple Node.JS Software Engineers to join them on a Permanent basis. The client are now growing their technical team to develop the next generation of Design Systems that seamlessly integrate with AI/agents with the Public Sector so you will need to be SC Clearable to be considered. Responsibilities Develop and maintain Server Side logic using NodeJS Collaborate with Front End developers to integrate user-facing elements with Server Side logic Implement security and data protection measures Conduct code reviews and provide feedback for improvements Essential Skills & Experience Proven experience with NodeJS and Back End development Strong understanding of asynchronous programming Proficient in database technologies such as MySQL or MongoDB Experience with version control systems like Git Desirable Skills & Experience Familiarity with microservices architecture Knowledge of Docker and containerization Experience working in an Agile environment Call to Action If you have the necessary skills and experience for this role, we encourage you to apply by submitting your CV. Join Our Client and be part of an exciting and innovative team pushing the boundaries of technology. Role: Node.JS Engineer Positions: 5 Location: 2 Days in Belfast per week (BT2) Salary bands: £50k to £75k Start Date: ASAP
Company Description Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and government entities in more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable, and secure payments network, enabling individuals, businesses, and economies to thrive while driven by a common purpose - to uplift everyone, everywhere by being the best way to pay and be paid. Make an impact with a purpose-driven industry leader. Join us today and experience Life at Visa. Job Description About The Role Currencycloud was acquired by Visa in December 2021. OurSeniorJava Engineersare responsible for implementing an industry-leading API that has already processed over 50 billion USD of cross-border transactions for over 5 million end users, and is available to our clients 24x7. But we're not stopping there, and our engineers are at the forefront of taking us forward to meet the demands of even greater scale. Our stack runs on AWS as a set of distributed applications using Kubernetes and a microservice-led architecture. We are also utilising Kafka for our streaming and PACT for Contract testing. What you'll get to do As aSenior Java Engineeryou'll play a key role within your cross functional team, taking responsibility for your services and the technology within them. These roles fit in to squads who are building out brand new parts to our payments platform, focusing on high availability, cloud native, microservice concepts You'll get to work as the Senior Engineer in your squad, leading on discussions around technical direction and systems design, as well as mentoring more junior members of the team You'Ll Get Clear ownership of your domain A clean modern codebase An independent path to production Strong platform and product support The ability to make real changes with real business value. Our Tech Stack includes Clear ownership of your domain A clean modern codebase An independent path to production Strong platform and product support The ability to make real changes with real business value. Our Tech Stack includes Object-oriented programming forms the bulk of our codebase, currently in Java, versions 11+, and ideally Springboot framework Highly-scalable, highly-available, cloud-native applications on AWS are key to our next phase of growth, are written to 12-factor principles and fit into our microservices architecture Cloud-related tools, services, and distributed system observability to support these applications, such as Docker, Kubernetes, ElasticSearch, log management systems, and Datadog APM, to name but a few API specifications, conforming to the OpenAPI (Swagger) standard, provide a clean boundary both externally between our customers and our product, and internally between our microservices SQL, and large SQL databases, provide the persistence layer for our applications. You'll be working with (and know the limitations of using) such large datastores Infrastructure automation is primarily owned by the infrastructure team, but you will be a consumer of their work, familiarity with AWS, Terraform and Docker is beneficial Testing approaches, including TDD, BDD and Contract Testing, all form an important part of our approach to quality assurance, ensuring that the code that we write forms products that are fit for use. We currently use a variety of frameworks including JUnit, RSpec and Cucumber Agile development, with teams broadly aligned with the Spotify - Squads and Tribes - model, helps us deliver incremental improvements to our products in an iterative manner. Advocating this model, and joining us on a journey of continuous improvement, is a key attribute of members of our teams Continuous Integration and Continuous Delivery pipelines allow us to automate-all-the-things, providing repeatable builds and consistent deployments GitHub, and the GitHub PR review process, forms a core part of our developer workflow, and peer reviews help share knowledge and improve quality Teamwork, and cross-team collaboration, is fundamental to the delivery of our applications. Whilst each application has an independent path to production, there will always be some activities and initiatives that span multiple teams and require cross-team collaboration. Within your team you'll need to collaborate with a number of stakeholders, including Product Owners and QA, as part of your product development This is a hybrid position. Expectation of days in office will be confirmed by your Hiring Manager. Qualifications Basic Qualifications 5+ years of relevant work experience with a Bachelor's Degree or at least 2 years of work experience with an Advanced degree (e.g. Masters, MBA, JD, MD) or 0 years of work experience with a PhD, OR 8+ years of relevant work experience. Preferred Qualifications 5+ years of relevant work experience with a Bachelor's Degree or at least 2 years of work experience with an Advanced degree (e.g. Masters, MBA, JD, MD) or 0 years of work experience with a PhD, OR 8+ years of relevant work experience. 5+ years experience in Java Backend Development Skills with functional Java (versions 8+) and Spring (ideally Springboot) Agile ways of working such as Scrum or Kanban in cross-functional teams Expert knowledge of Docker, EKS, AWS (public cloud) and Kafka Additional Information Visa is an EEO Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.
Jan 08, 2026
Full time
Company Description Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and government entities in more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable, and secure payments network, enabling individuals, businesses, and economies to thrive while driven by a common purpose - to uplift everyone, everywhere by being the best way to pay and be paid. Make an impact with a purpose-driven industry leader. Join us today and experience Life at Visa. Job Description About The Role Currencycloud was acquired by Visa in December 2021. OurSeniorJava Engineersare responsible for implementing an industry-leading API that has already processed over 50 billion USD of cross-border transactions for over 5 million end users, and is available to our clients 24x7. But we're not stopping there, and our engineers are at the forefront of taking us forward to meet the demands of even greater scale. Our stack runs on AWS as a set of distributed applications using Kubernetes and a microservice-led architecture. We are also utilising Kafka for our streaming and PACT for Contract testing. What you'll get to do As aSenior Java Engineeryou'll play a key role within your cross functional team, taking responsibility for your services and the technology within them. These roles fit in to squads who are building out brand new parts to our payments platform, focusing on high availability, cloud native, microservice concepts You'll get to work as the Senior Engineer in your squad, leading on discussions around technical direction and systems design, as well as mentoring more junior members of the team You'Ll Get Clear ownership of your domain A clean modern codebase An independent path to production Strong platform and product support The ability to make real changes with real business value. Our Tech Stack includes Clear ownership of your domain A clean modern codebase An independent path to production Strong platform and product support The ability to make real changes with real business value. Our Tech Stack includes Object-oriented programming forms the bulk of our codebase, currently in Java, versions 11+, and ideally Springboot framework Highly-scalable, highly-available, cloud-native applications on AWS are key to our next phase of growth, are written to 12-factor principles and fit into our microservices architecture Cloud-related tools, services, and distributed system observability to support these applications, such as Docker, Kubernetes, ElasticSearch, log management systems, and Datadog APM, to name but a few API specifications, conforming to the OpenAPI (Swagger) standard, provide a clean boundary both externally between our customers and our product, and internally between our microservices SQL, and large SQL databases, provide the persistence layer for our applications. You'll be working with (and know the limitations of using) such large datastores Infrastructure automation is primarily owned by the infrastructure team, but you will be a consumer of their work, familiarity with AWS, Terraform and Docker is beneficial Testing approaches, including TDD, BDD and Contract Testing, all form an important part of our approach to quality assurance, ensuring that the code that we write forms products that are fit for use. We currently use a variety of frameworks including JUnit, RSpec and Cucumber Agile development, with teams broadly aligned with the Spotify - Squads and Tribes - model, helps us deliver incremental improvements to our products in an iterative manner. Advocating this model, and joining us on a journey of continuous improvement, is a key attribute of members of our teams Continuous Integration and Continuous Delivery pipelines allow us to automate-all-the-things, providing repeatable builds and consistent deployments GitHub, and the GitHub PR review process, forms a core part of our developer workflow, and peer reviews help share knowledge and improve quality Teamwork, and cross-team collaboration, is fundamental to the delivery of our applications. Whilst each application has an independent path to production, there will always be some activities and initiatives that span multiple teams and require cross-team collaboration. Within your team you'll need to collaborate with a number of stakeholders, including Product Owners and QA, as part of your product development This is a hybrid position. Expectation of days in office will be confirmed by your Hiring Manager. Qualifications Basic Qualifications 5+ years of relevant work experience with a Bachelor's Degree or at least 2 years of work experience with an Advanced degree (e.g. Masters, MBA, JD, MD) or 0 years of work experience with a PhD, OR 8+ years of relevant work experience. Preferred Qualifications 5+ years of relevant work experience with a Bachelor's Degree or at least 2 years of work experience with an Advanced degree (e.g. Masters, MBA, JD, MD) or 0 years of work experience with a PhD, OR 8+ years of relevant work experience. 5+ years experience in Java Backend Development Skills with functional Java (versions 8+) and Spring (ideally Springboot) Agile ways of working such as Scrum or Kanban in cross-functional teams Expert knowledge of Docker, EKS, AWS (public cloud) and Kafka Additional Information Visa is an EEO Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.
London, England, United Kingdom Engineering At SumUp, we're on a mission to bring merchants and consumers closer together and help local communities thrive. We're building a rewarding loyalty experience that connects people to the small businesses they love while enabling free transactions for our merchants. SumUp Local puts loyalty and merchant discovery on every checkout screen, helping businesses acquire consumers at scale while building our consumer network. This role is a high-impact, key position that will challenge you to work at a quick pace and tackle a wide variety of topics and opportunities on a global scale. You will use your strategic thinking and original mindset, as well as immense drive, to help strategise and innovate within the Consumer Tribe, which is responsible for building and growing SumUp Local and closing the loop between consumers and merchants while collaborating with the rest of the organisation. If you're excited about consumer-facing products, loyalty platforms, and helping small businesses thrive, we'd love to meet you. What you'll do: Co own product delivery: Define short- and long term goals with Product, drive technical design and architecture discussions, and ensure timely, high quality execution. Grow and support your team: provide coaching, feedback, and structured performance development while fostering a collaborative, high performing culture. Promote cross functional alignment: build strong collaboration across engineering, product, and business teams in a dynamic environment with multiple stakeholders. Drive operational excellence: maintain highly available, complex backend systems while accelerating development velocity. Contribute hands on: review designs and code when needed, and help solve complex backend challenges. What we're looking for: You have deep backend engineering experience and hands on work with distributed systems, APIs, and databases. Experience with Go, Kotlin, Python, or Swift and cloud native environments (preferably AWS, Docker, Kubernetes) is a plus. You've managed engineering teams in complex environments involving multiple technologies, priorities, and cross functional collaboration - with at least 2+ years of experience as an Engineering Manager. You're a product oriented engineering leader - comfortable working with a startup mindset and making pragmatic product and engineering trade offs to drive impact. You're a clear, effective communicator - able to simplify technical topics and build alignment and trust across diverse stakeholders. You lead with empathy and clarity, giving constructive feedback, developing people, and guiding teams through scale or change. You're self-driven, flexible, and adaptable - comfortable shifting context and priorities with ease. You prioritise team success over individual silos, working to break down barriers and foster a culture of collaboration and shared ownership. Why you should join SumUp Opportunity to work with a truly global, multicultural team from our central Covent Garden location, wrapped in historic charm and modern flair. This involves an office first setup. Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced. Enrolment onto our VSOP program: you will own a stake in SumUp's future success. Generous time off: enjoy 28 days of paid leave, plus bank holidays and special leaves. Health matters: Vitality health cover, including optical and dental. Life made easier: salary sacrifice commuter benefits via Gogeta. Financial security: retirement scheme (SumUp matches 7% when you contribute 5%). Peace of mind: life insurance from MetLife for 2 your salary. Break4me: 1 month sabbatical after 3 years of service. Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team. Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don't tick every box, it's ok too because it means you have room to learn and develop your career at SumUp. Always Active
Jan 08, 2026
Full time
London, England, United Kingdom Engineering At SumUp, we're on a mission to bring merchants and consumers closer together and help local communities thrive. We're building a rewarding loyalty experience that connects people to the small businesses they love while enabling free transactions for our merchants. SumUp Local puts loyalty and merchant discovery on every checkout screen, helping businesses acquire consumers at scale while building our consumer network. This role is a high-impact, key position that will challenge you to work at a quick pace and tackle a wide variety of topics and opportunities on a global scale. You will use your strategic thinking and original mindset, as well as immense drive, to help strategise and innovate within the Consumer Tribe, which is responsible for building and growing SumUp Local and closing the loop between consumers and merchants while collaborating with the rest of the organisation. If you're excited about consumer-facing products, loyalty platforms, and helping small businesses thrive, we'd love to meet you. What you'll do: Co own product delivery: Define short- and long term goals with Product, drive technical design and architecture discussions, and ensure timely, high quality execution. Grow and support your team: provide coaching, feedback, and structured performance development while fostering a collaborative, high performing culture. Promote cross functional alignment: build strong collaboration across engineering, product, and business teams in a dynamic environment with multiple stakeholders. Drive operational excellence: maintain highly available, complex backend systems while accelerating development velocity. Contribute hands on: review designs and code when needed, and help solve complex backend challenges. What we're looking for: You have deep backend engineering experience and hands on work with distributed systems, APIs, and databases. Experience with Go, Kotlin, Python, or Swift and cloud native environments (preferably AWS, Docker, Kubernetes) is a plus. You've managed engineering teams in complex environments involving multiple technologies, priorities, and cross functional collaboration - with at least 2+ years of experience as an Engineering Manager. You're a product oriented engineering leader - comfortable working with a startup mindset and making pragmatic product and engineering trade offs to drive impact. You're a clear, effective communicator - able to simplify technical topics and build alignment and trust across diverse stakeholders. You lead with empathy and clarity, giving constructive feedback, developing people, and guiding teams through scale or change. You're self-driven, flexible, and adaptable - comfortable shifting context and priorities with ease. You prioritise team success over individual silos, working to break down barriers and foster a culture of collaboration and shared ownership. Why you should join SumUp Opportunity to work with a truly global, multicultural team from our central Covent Garden location, wrapped in historic charm and modern flair. This involves an office first setup. Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced. Enrolment onto our VSOP program: you will own a stake in SumUp's future success. Generous time off: enjoy 28 days of paid leave, plus bank holidays and special leaves. Health matters: Vitality health cover, including optical and dental. Life made easier: salary sacrifice commuter benefits via Gogeta. Financial security: retirement scheme (SumUp matches 7% when you contribute 5%). Peace of mind: life insurance from MetLife for 2 your salary. Break4me: 1 month sabbatical after 3 years of service. Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team. Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don't tick every box, it's ok too because it means you have room to learn and develop your career at SumUp. Always Active
Backend Developer (Contract) Start Date: ASAP Contract Length: 12 months Rate: Up to 522 per day inside IR35. Location: Mostly remote, with occasional travel to Croydon Clearance: SC Clearance (existing clearance preferred but not essential) About the Role We're looking for an experienced Backend Developer to join a high-impact project delivering scalable, reliable backend services. You'll work with modern Java-based technologies in a collaborative, delivery-focused environment, contributing to systems that are critical, secure, and built to scale. This is a contract role offering long-term stability, flexibility through remote working, and the opportunity to work on meaningful, production-grade systems. Key Responsibilities Design, build, and maintain robust backend services using Java Develop and integrate event-driven systems using Kafka Build and consume REST APIs to support internal and external services Collaborate closely with product owners, architects, and other engineers Write clean, maintainable, and well-tested code Support system performance, scalability, and reliability Contribute to code reviews and best-practice engineering standards Must-Have Skills Strong commercial experience with Java Hands-on experience with Kafka in production environments Experience building and consuming RESTful APIs Solid understanding of backend engineering principles Nice-to-Have Skills Spring ecosystem (Spring Framework, Spring Boot, Spring Data) Postgres or other relational databases OpenSearch / Elasticsearch Node.js Wiremock or other API mocking/testing tools Experience working in cloud-based or distributed systems All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!
Jan 07, 2026
Contractor
Backend Developer (Contract) Start Date: ASAP Contract Length: 12 months Rate: Up to 522 per day inside IR35. Location: Mostly remote, with occasional travel to Croydon Clearance: SC Clearance (existing clearance preferred but not essential) About the Role We're looking for an experienced Backend Developer to join a high-impact project delivering scalable, reliable backend services. You'll work with modern Java-based technologies in a collaborative, delivery-focused environment, contributing to systems that are critical, secure, and built to scale. This is a contract role offering long-term stability, flexibility through remote working, and the opportunity to work on meaningful, production-grade systems. Key Responsibilities Design, build, and maintain robust backend services using Java Develop and integrate event-driven systems using Kafka Build and consume REST APIs to support internal and external services Collaborate closely with product owners, architects, and other engineers Write clean, maintainable, and well-tested code Support system performance, scalability, and reliability Contribute to code reviews and best-practice engineering standards Must-Have Skills Strong commercial experience with Java Hands-on experience with Kafka in production environments Experience building and consuming RESTful APIs Solid understanding of backend engineering principles Nice-to-Have Skills Spring ecosystem (Spring Framework, Spring Boot, Spring Data) Postgres or other relational databases OpenSearch / Elasticsearch Node.js Wiremock or other API mocking/testing tools Experience working in cloud-based or distributed systems All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!
Senior Developer - 400PD - Remote We are seeking a skilled and collaborative Senior Developer to join our engineering team. In this role, you will contribute to the design, development, and maintenance of high-quality backend services and infrastructure platforms. You will work across a modern technology stack and help shape best practices for delivery, automation, and open ways of working. Key Responsibilities Backend Development: Develop and maintain backend services, with Python as the preferred language for new systems. Provide support for services built in Java and .NET, ensuring seamless integration and continued reliability. Enhance and maintain existing solutions using Oracle SQL PL. Database & Data Services: Work with relational databases including Oracle, SQL Server, and Postgres. Optimise data models, queries, and stored procedures to improve performance and maintainability. Infrastructure & DevOps: Build, deploy, and manage applications using cloud platforms such as AWS and Azure. Use modern DevOps tools and practices-including GitHub, Azure DevOps, Docker, Kubernetes, and Linux-based systems-to deliver scalable, reliable services. Implement and maintain CI/CD pipelines with a strong focus on automation, continuous deployment, testing, and monitoring. Quality & Testing: Develop software using Test-Driven Development (TD D ), writing automated tests before implementing code. Ensure high quality across the stack through continuous testing, observability, and feedback loops. Ways of Working: Champion open and transparent engineering practices, including maintaining visible codebases, documentation, design histories, and roadmaps. Collaborate closely with cross-functional teams and contribute to a culture of knowledge sharing and continuous improvement. What We're Looking For Strong experience developing backend services with Python, plus working knowledge of Java and/or .NET. Proficiency in SQL and experience with Oracle PL/SQL or similar technologies. Hands-on experience with cloud platforms (AWS, Azure), containerisation, DevOps tooling, and CI/CD automation. Familiarity with TDD, automated testing frameworks, and modern monitoring/observability tools. A commitment to open, transparent, and collaborative engineering practices. To apply for this role please submit your CV or contact Dillon Blackburn on (phone number removed) or at (url removed). Tenth Revolution Group are the go-to recruiter for Data & AI roles in the UK offering more opportunities across the country than any other recruitment agency. We're the proud sponsor and supporter of SQLBits, Power Platform World Tour, and the London Fabric User Group. We are the global leaders in Data & AI recruitment.
Jan 07, 2026
Contractor
Senior Developer - 400PD - Remote We are seeking a skilled and collaborative Senior Developer to join our engineering team. In this role, you will contribute to the design, development, and maintenance of high-quality backend services and infrastructure platforms. You will work across a modern technology stack and help shape best practices for delivery, automation, and open ways of working. Key Responsibilities Backend Development: Develop and maintain backend services, with Python as the preferred language for new systems. Provide support for services built in Java and .NET, ensuring seamless integration and continued reliability. Enhance and maintain existing solutions using Oracle SQL PL. Database & Data Services: Work with relational databases including Oracle, SQL Server, and Postgres. Optimise data models, queries, and stored procedures to improve performance and maintainability. Infrastructure & DevOps: Build, deploy, and manage applications using cloud platforms such as AWS and Azure. Use modern DevOps tools and practices-including GitHub, Azure DevOps, Docker, Kubernetes, and Linux-based systems-to deliver scalable, reliable services. Implement and maintain CI/CD pipelines with a strong focus on automation, continuous deployment, testing, and monitoring. Quality & Testing: Develop software using Test-Driven Development (TD D ), writing automated tests before implementing code. Ensure high quality across the stack through continuous testing, observability, and feedback loops. Ways of Working: Champion open and transparent engineering practices, including maintaining visible codebases, documentation, design histories, and roadmaps. Collaborate closely with cross-functional teams and contribute to a culture of knowledge sharing and continuous improvement. What We're Looking For Strong experience developing backend services with Python, plus working knowledge of Java and/or .NET. Proficiency in SQL and experience with Oracle PL/SQL or similar technologies. Hands-on experience with cloud platforms (AWS, Azure), containerisation, DevOps tooling, and CI/CD automation. Familiarity with TDD, automated testing frameworks, and modern monitoring/observability tools. A commitment to open, transparent, and collaborative engineering practices. To apply for this role please submit your CV or contact Dillon Blackburn on (phone number removed) or at (url removed). Tenth Revolution Group are the go-to recruiter for Data & AI roles in the UK offering more opportunities across the country than any other recruitment agency. We're the proud sponsor and supporter of SQLBits, Power Platform World Tour, and the London Fabric User Group. We are the global leaders in Data & AI recruitment.
However you identify or whatever your path here, please apply if you see a position that makes your heart skip a beat. Come join us and help us build a global company where we're all proud to belong. At HubSpot, we're on a mission to help millions of organisations grow better. Our platform is used by businesses worldwide to manage their marketing, sales, service, and operations and under the hood, our product is built to be flexible, secure, and empowering for both our customers and our own engineering teams. We believe in autonomy, curiosity, and building a workplace where everyone can thrive. Technical Lead Meet the Team: Downmarket The Downmarket team focuses on delivering fast, intuitive, consumer-grade product experiences that help small businesses get immediate value from HubSpot. We build lightweight, high-leverage tools that meet users where they already work, including external integrations, add-ons, and companion apps, all designed to help new customers onboard quickly, understand HubSpot's value, and grow with the platform. You'll join a highly entrepreneurial group that experiments rapidly, moves between ideas quickly, and often builds proof-of-concept solutions that may evolve, pivot, or get replaced as we learn. The work is creative, exploratory, and deeply cross-functional, blending engineering, product, and growth thinking to shape entirely new entry points into HubSpot. Responsibilities: Lead a team of engineers where autonomy, flexibility, and experimentation are core values. Spend 60% of your time hands-on - setting technical direction, prototyping, and building alongside the team. Collaborate with engineers, product managers, designers, and stakeholders across HubSpot to identify opportunities and ship high-impact solutions. Guide the team through rapid iteration cycles, including building MVPs, testing hypotheses, and pivoting based on learnings. Mentor and grow engineers, helping shape a culture rooted in curiosity, ownership, and customer empathy. Collaborate cross company with engineering, product, design, marketing, and sales to bring new ideas to life. Help our smallest customers succeed by shipping improvements that make HubSpot easier to adopt and more delightful to use. Implement and run experiments that generate insights into user behaviour, onboarding success, and early lifecycle value. Gain broad exposure to how HubSpot functions as a business and how we serve different customer segments. We're looking for someone who: Is a strong senior backend engineer (Java experience required) with leadership experience on smaller teams, especially in critical or challenging systems. Takes end to end ownership, works collaboratively with product partners, and can simplify complex problems into user friendly solutions. Consistently ships reliable, performant, well tested code, even when juggling competing priorities. Has an interest in external integrations, lightweight apps, or consumer style experiences - and enjoys learning new technologies quickly. Knows how to foster autonomy, psychological safety, and strong product engineering partnership within a team. Cares deeply about intuitive UX and helping customers experience value as quickly as possible. Enjoys mentoring and coaching, and loves learning from teammates across disciplines. Puts the customer at the centre, shaping insights that help improve the HubSpot platform. We know the confidence gap and impostor syndrome can get in the way of meeting spectacular candidates, so please don't hesitate to apply - we'd love to hear from you. If you need accommodations or assistance due to a disability, please reach out to us using this form . At HubSpot, we value both flexibility and connection. Whether you're a Remote employee or work from the Office, we want you to start your journey here by building strong connections with your team and peers. If you are joining our Engineering team, you will be required to attend a regional HubSpot office for in person onboarding. If you join our broader Product team, you'll also attend other in person events, such as your Product Group Summit and other gatherings, to continue building on those connections. If you require an accommodation due to travel limitations or other reasons, please inform your recruiter during the hiring process. We are committed to supporting candidates who may need alternative arrangements. Massachusetts Applicants: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. Germany Applicants: (m/f/d) - link to HubSpot's Career Diversitypagehere . India Applicants: link to HubSpot India's equal opportunity policy here . About HubSpot HubSpot (NYSE: HUBS) is an AI powered customer platform with all the software, integrations, and resources customers need to connect marketing, sales, and service. HubSpot's connected platform enables businesses to grow faster by focusing on what matters most: customers. At HubSpot, bold is our baseline. Our employees around the globe move fast, stay customer obsessed, and win together. Our culture is grounded in four commitments: Solve for the Customer, Be Bold, Learn Fast, Align, Adapt & Go!, and Deliver with HEART. These commitments shape how we work, lead, and grow. We're building a company where people can do their best work. We focus on brilliant work, not badge swipes. By combining clarity, ownership, and trust, we create space for big thinking and meaningful progress. And we know that when our employees grow, our customers do too. Recognized globally for our award winning culture by Comparably, Glassdoor, Fortune, and more, HubSpot is headquartered in Cambridge, MA, with employees and offices around the world. HubSpot may use AI to help screen or assess candidates, but all hiring decisions are always human. More information can be found here . By submitting your application, you agree that HubSpot may collect your personal data for recruiting, global organization planning, and related purposes. Refer to HubSpot's Recruiting Privacy Notice for details on data processing and your rights.
Jan 07, 2026
Full time
However you identify or whatever your path here, please apply if you see a position that makes your heart skip a beat. Come join us and help us build a global company where we're all proud to belong. At HubSpot, we're on a mission to help millions of organisations grow better. Our platform is used by businesses worldwide to manage their marketing, sales, service, and operations and under the hood, our product is built to be flexible, secure, and empowering for both our customers and our own engineering teams. We believe in autonomy, curiosity, and building a workplace where everyone can thrive. Technical Lead Meet the Team: Downmarket The Downmarket team focuses on delivering fast, intuitive, consumer-grade product experiences that help small businesses get immediate value from HubSpot. We build lightweight, high-leverage tools that meet users where they already work, including external integrations, add-ons, and companion apps, all designed to help new customers onboard quickly, understand HubSpot's value, and grow with the platform. You'll join a highly entrepreneurial group that experiments rapidly, moves between ideas quickly, and often builds proof-of-concept solutions that may evolve, pivot, or get replaced as we learn. The work is creative, exploratory, and deeply cross-functional, blending engineering, product, and growth thinking to shape entirely new entry points into HubSpot. Responsibilities: Lead a team of engineers where autonomy, flexibility, and experimentation are core values. Spend 60% of your time hands-on - setting technical direction, prototyping, and building alongside the team. Collaborate with engineers, product managers, designers, and stakeholders across HubSpot to identify opportunities and ship high-impact solutions. Guide the team through rapid iteration cycles, including building MVPs, testing hypotheses, and pivoting based on learnings. Mentor and grow engineers, helping shape a culture rooted in curiosity, ownership, and customer empathy. Collaborate cross company with engineering, product, design, marketing, and sales to bring new ideas to life. Help our smallest customers succeed by shipping improvements that make HubSpot easier to adopt and more delightful to use. Implement and run experiments that generate insights into user behaviour, onboarding success, and early lifecycle value. Gain broad exposure to how HubSpot functions as a business and how we serve different customer segments. We're looking for someone who: Is a strong senior backend engineer (Java experience required) with leadership experience on smaller teams, especially in critical or challenging systems. Takes end to end ownership, works collaboratively with product partners, and can simplify complex problems into user friendly solutions. Consistently ships reliable, performant, well tested code, even when juggling competing priorities. Has an interest in external integrations, lightweight apps, or consumer style experiences - and enjoys learning new technologies quickly. Knows how to foster autonomy, psychological safety, and strong product engineering partnership within a team. Cares deeply about intuitive UX and helping customers experience value as quickly as possible. Enjoys mentoring and coaching, and loves learning from teammates across disciplines. Puts the customer at the centre, shaping insights that help improve the HubSpot platform. We know the confidence gap and impostor syndrome can get in the way of meeting spectacular candidates, so please don't hesitate to apply - we'd love to hear from you. If you need accommodations or assistance due to a disability, please reach out to us using this form . At HubSpot, we value both flexibility and connection. Whether you're a Remote employee or work from the Office, we want you to start your journey here by building strong connections with your team and peers. If you are joining our Engineering team, you will be required to attend a regional HubSpot office for in person onboarding. If you join our broader Product team, you'll also attend other in person events, such as your Product Group Summit and other gatherings, to continue building on those connections. If you require an accommodation due to travel limitations or other reasons, please inform your recruiter during the hiring process. We are committed to supporting candidates who may need alternative arrangements. Massachusetts Applicants: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. Germany Applicants: (m/f/d) - link to HubSpot's Career Diversitypagehere . India Applicants: link to HubSpot India's equal opportunity policy here . About HubSpot HubSpot (NYSE: HUBS) is an AI powered customer platform with all the software, integrations, and resources customers need to connect marketing, sales, and service. HubSpot's connected platform enables businesses to grow faster by focusing on what matters most: customers. At HubSpot, bold is our baseline. Our employees around the globe move fast, stay customer obsessed, and win together. Our culture is grounded in four commitments: Solve for the Customer, Be Bold, Learn Fast, Align, Adapt & Go!, and Deliver with HEART. These commitments shape how we work, lead, and grow. We're building a company where people can do their best work. We focus on brilliant work, not badge swipes. By combining clarity, ownership, and trust, we create space for big thinking and meaningful progress. And we know that when our employees grow, our customers do too. Recognized globally for our award winning culture by Comparably, Glassdoor, Fortune, and more, HubSpot is headquartered in Cambridge, MA, with employees and offices around the world. HubSpot may use AI to help screen or assess candidates, but all hiring decisions are always human. More information can be found here . By submitting your application, you agree that HubSpot may collect your personal data for recruiting, global organization planning, and related purposes. Refer to HubSpot's Recruiting Privacy Notice for details on data processing and your rights.
Mindera is looking for aJava Engineer with hands-on experience in OpenTelemetry (OTEL) to join our backend engineering team. You'll play a key role in designing, building, and instrumenting high-performance Java services. Design, develop, and maintain scalable Java-based microservices and backend systems. Implement observability best practices using OpenTelemetry (OTEL) for tracing, metrics, and logging. Collaborate with platform and DevOps teams to integrate telemetry data with systems such as Grafana, Prometheus, Jaeger, or Tempo. Define and maintain instrumentation standards across Java applications to ensure consistency and performance visibility. Diagnose complex production issues through telemetry data and performance profiling. Contribute to architectural discussions on service design, distributed systems, and monitoring strategy. Write clean, efficient, and testable code following best practices in CI/CD and automated testing. Mentor junior engineers on observability and instrumentation concepts. Competitive day rate
Jan 07, 2026
Full time
Mindera is looking for aJava Engineer with hands-on experience in OpenTelemetry (OTEL) to join our backend engineering team. You'll play a key role in designing, building, and instrumenting high-performance Java services. Design, develop, and maintain scalable Java-based microservices and backend systems. Implement observability best practices using OpenTelemetry (OTEL) for tracing, metrics, and logging. Collaborate with platform and DevOps teams to integrate telemetry data with systems such as Grafana, Prometheus, Jaeger, or Tempo. Define and maintain instrumentation standards across Java applications to ensure consistency and performance visibility. Diagnose complex production issues through telemetry data and performance profiling. Contribute to architectural discussions on service design, distributed systems, and monitoring strategy. Write clean, efficient, and testable code following best practices in CI/CD and automated testing. Mentor junior engineers on observability and instrumentation concepts. Competitive day rate
Software Engineer Location: Bishops Stortford Salary: Up to £50k Do you have two years software development experience? Do you have a strong foundation in C# development? Would you enjoy working on projects that involve data integrations, security systems, and enterprise-scale solutions? This role is ideal for someone with around 2 years experience, looking to build on their skills with mentoring from senior engineers. The Company Our client is a fast-growing technology business that designs and delivers bespoke software solutions, data integrations, and consultancy services. Since their launch in 2020, they have built a strong reputation for developing custom integrations between third-party systems and access control/security platforms, supporting sectors including higher education, commercial real estate, healthcare, and defence. Now part of a larger international group, they are expanding their UK-based engineering team and looking for a Software Engineer with skills in C# and SQL to join them. You ll be working closely with senior engineers, gaining hands-on experience, and supporting clients across the UK, Europe, and North America. What you will be doing As C# Software Engineer, you will: Design and develop automated unit, regression, and integration tests Develop and test backend services across both cloud and on-premise deployments Design and implement new features as the product suite evolves Deploy custom solutions remotely to client systems Investigate and resolve software support issues, including customer-facing interaction Write technical documentation and produce supporting materials Contribute to code reviews, improving quality and learning from senior colleagues Collaborate with end users and partners to ensure smooth delivery You will be mentored by experienced engineers and have the chance to work with clients ranging from universities to global Fortune 100 and FTSE 250 companies. What we are looking for We are looking for someone with a solid technical foundation, an eagerness to learn, and strong communication skills. The ideal candidate will have: 2+ years professional experience in C# development Strong understanding of Computer Science fundamentals (data structures, networking, concurrency) Knowledge of OOP principles Experience working with APIs (building and consuming) Proficiency with Microsoft SQL Server or similar DBMS Basic familiarity with GIT or another source control system Clear and confident written and spoken English for remote collaboration Ability to prioritise, stay organised, and work well under pressure Permission to live and work full-time in the UK (visa sponsorship not available) It s also a bonus if you have: A degree in a scientific or technical discipline from a leading university Experience in a customer-facing role A proactive and curious mindset, keen to explore new technologies Why apply? This is a fantastic opportunity to progress your Software Development career with a company that will invest in your growth. You will gain exposure to varied projects, work alongside experienced engineers, and develop your skills in a supportive, innovative environment.
Jan 07, 2026
Full time
Software Engineer Location: Bishops Stortford Salary: Up to £50k Do you have two years software development experience? Do you have a strong foundation in C# development? Would you enjoy working on projects that involve data integrations, security systems, and enterprise-scale solutions? This role is ideal for someone with around 2 years experience, looking to build on their skills with mentoring from senior engineers. The Company Our client is a fast-growing technology business that designs and delivers bespoke software solutions, data integrations, and consultancy services. Since their launch in 2020, they have built a strong reputation for developing custom integrations between third-party systems and access control/security platforms, supporting sectors including higher education, commercial real estate, healthcare, and defence. Now part of a larger international group, they are expanding their UK-based engineering team and looking for a Software Engineer with skills in C# and SQL to join them. You ll be working closely with senior engineers, gaining hands-on experience, and supporting clients across the UK, Europe, and North America. What you will be doing As C# Software Engineer, you will: Design and develop automated unit, regression, and integration tests Develop and test backend services across both cloud and on-premise deployments Design and implement new features as the product suite evolves Deploy custom solutions remotely to client systems Investigate and resolve software support issues, including customer-facing interaction Write technical documentation and produce supporting materials Contribute to code reviews, improving quality and learning from senior colleagues Collaborate with end users and partners to ensure smooth delivery You will be mentored by experienced engineers and have the chance to work with clients ranging from universities to global Fortune 100 and FTSE 250 companies. What we are looking for We are looking for someone with a solid technical foundation, an eagerness to learn, and strong communication skills. The ideal candidate will have: 2+ years professional experience in C# development Strong understanding of Computer Science fundamentals (data structures, networking, concurrency) Knowledge of OOP principles Experience working with APIs (building and consuming) Proficiency with Microsoft SQL Server or similar DBMS Basic familiarity with GIT or another source control system Clear and confident written and spoken English for remote collaboration Ability to prioritise, stay organised, and work well under pressure Permission to live and work full-time in the UK (visa sponsorship not available) It s also a bonus if you have: A degree in a scientific or technical discipline from a leading university Experience in a customer-facing role A proactive and curious mindset, keen to explore new technologies Why apply? This is a fantastic opportunity to progress your Software Development career with a company that will invest in your growth. You will gain exposure to varied projects, work alongside experienced engineers, and develop your skills in a supportive, innovative environment.
Application Software Engineer (Mid level - Senior), Degree, UI/UX, JavaScript Location: Cambridge, UK (Hybrid) Salary: 35,000 - 55,000 (depending on experience) The Company Join a pioneering AI and machine learning software house, led by award-winning entrepreneurs and known for pushing the boundaries of innovation. You'll be part of a collaborative, high-calibre team working on impactful, real-world projects, leveraging cutting-edge technologies including modern JavaScript libraries and front-end frameworks. What We're Looking For Education & Skills - A 2:1 or higher in Computer Science, Engineering, Physics, or a related field from a top university. - AAB or higher at A-levels. - Strong mathematical and analytical thinking skills. - Excellent communication and teamwork abilities, happy to be in a team and share ideas. Technical Skills - Exceptional with one or more of the following: Programming: Node.js, Python, Java, JavaScript (React, Angular, Vue.js), JavaScript libraries (React, Angular, Vue.js) - Databases: PostgreSQL, Elasticsearch, Redis - A proactive, problem-solving mindset and eagerness to learn. - Some UI or UX design work - Ideally a competent programmer in Java or Python to a high level - Someone that has been involved both backend and front end could do very well here. Experience - The sweet spot for the Application Software Engineer position is someone with three to five years industry experience in a cutting edge tech company. - Passion for software engineering and a desire to build scalable, high-quality applications. The Role As an Application Software Engineer, you'll: - Contribute to the design, development, and implementation of software applications. - Collaborate with a diverse and talented team of engineers. - Learn from an experience team whilst sharing your own ideas. - Designing smart web based applications, chance to work end back and front end. Why Join Us? - Work with a globally respected AI software company. - Competitive salary and benefits. - Hybrid working model with a collaborative office culture in Cambridge. - Learn from top experts in AI and machine learning. - Clear progression path and opportunities to grow your career. Application Process - Submit a CV that highlights your academic achievements and relevant experience. - Initial discussions will take place before your application is submitted to the employer. Ready to take the next step in your software engineering career? Apply now! Adecco is acting as an Employment Agency. We are an equal opportunities employer.
Jan 07, 2026
Full time
Application Software Engineer (Mid level - Senior), Degree, UI/UX, JavaScript Location: Cambridge, UK (Hybrid) Salary: 35,000 - 55,000 (depending on experience) The Company Join a pioneering AI and machine learning software house, led by award-winning entrepreneurs and known for pushing the boundaries of innovation. You'll be part of a collaborative, high-calibre team working on impactful, real-world projects, leveraging cutting-edge technologies including modern JavaScript libraries and front-end frameworks. What We're Looking For Education & Skills - A 2:1 or higher in Computer Science, Engineering, Physics, or a related field from a top university. - AAB or higher at A-levels. - Strong mathematical and analytical thinking skills. - Excellent communication and teamwork abilities, happy to be in a team and share ideas. Technical Skills - Exceptional with one or more of the following: Programming: Node.js, Python, Java, JavaScript (React, Angular, Vue.js), JavaScript libraries (React, Angular, Vue.js) - Databases: PostgreSQL, Elasticsearch, Redis - A proactive, problem-solving mindset and eagerness to learn. - Some UI or UX design work - Ideally a competent programmer in Java or Python to a high level - Someone that has been involved both backend and front end could do very well here. Experience - The sweet spot for the Application Software Engineer position is someone with three to five years industry experience in a cutting edge tech company. - Passion for software engineering and a desire to build scalable, high-quality applications. The Role As an Application Software Engineer, you'll: - Contribute to the design, development, and implementation of software applications. - Collaborate with a diverse and talented team of engineers. - Learn from an experience team whilst sharing your own ideas. - Designing smart web based applications, chance to work end back and front end. Why Join Us? - Work with a globally respected AI software company. - Competitive salary and benefits. - Hybrid working model with a collaborative office culture in Cambridge. - Learn from top experts in AI and machine learning. - Clear progression path and opportunities to grow your career. Application Process - Submit a CV that highlights your academic achievements and relevant experience. - Initial discussions will take place before your application is submitted to the employer. Ready to take the next step in your software engineering career? Apply now! Adecco is acting as an Employment Agency. We are an equal opportunities employer.
We are seeking an Automation Assurance Specialist (Consultant) to join a high-performing Digital Excellence team delivering complex, technology-led transformation programmes. You will play a critical role in assuring the quality, reliability and robustness of digital solutions across a wide range of client engagements. Automation Assurance Specialist - Consultant (Digital Excellence) Salary: 50,000 - 55,000 plus benefits, perks, healthcare options! Client: Global IT Consultancy Location: Either London, Manchester or Glasgow Office (Hybrid working) Role type: Permanent, full-time Note: Unlimited Training Budget For Any External Certifications You Wish To Achieve! The Role We are seeking an Automation Assurance Specialist (Consultant level) to join a high-performing Digital Excellence team delivering complex, technology-led transformation programmes. You will play a critical role in assuring the quality, reliability and robustness of digital solutions across a wide range of client engagements. You will be responsible for designing, implementing and maintaining high-quality automated testing solutions, providing confidence that systems meet functional and non-functional requirements across accessibility, performance, security and integration. This role offers exposure to a wide variety of technologies and large-scale, technically challenging projects, working within multidisciplinary engineering teams in agile environments. What You'll Be Doing Deliver cross-functional engineering and assurance activities within small, collaborative teams Design, build and maintain clean, scalable and maintainable automation test suites Execute automated and manual testing across functional, integration and exploratory testing Embed test automation into CI/CD pipelines to support continuous delivery Assure technical delivery quality by working closely with engineers, designers and stakeholders Continuously improve testing practices, tools and processes Coach and mentor colleagues, sharing best practice and supporting team capability growth Contribute to innovation, inclusion, collaboration and self-organising team culture Support business development, internal initiatives and knowledge-sharing activities Technology Exposure You will gain experience across a broad technical landscape, including but not limited to: Java, JavaScript, Node.js, Kotlin Spring Boot and RESTful microservices Selenium, Playwright, Cucumber, REST testing NoSQL databases Git-based version control systems Your Profile Essential experience: ISTQB Foundation certification (or equivalent experience) Strong experience in functional, integration, exploratory and manual testing Experience building and contributing to automation frameworks (Java or JavaScript) Hands-on experience with backend and frontend automated testing tools Experience working in agile delivery environments Confident using Git-based version control tools (GitHub, GitLab etc.) Ability to self-manage and proactively identify improvement areas Desirable experience: Non-functional testing (Accessibility, Performance, Security) CI/CD tooling (GitHub Actions, GitLab CI, Jenkins) Docker for testing environments Maven for test execution Accessibility standards and test automation best practices Familiarity with the (url removed) Design System Experience applying structured evaluation methods, including AI evaluations Please " Apply " or contact Aaron Perdesi on (phone number removed) to learn more!
Jan 06, 2026
Full time
We are seeking an Automation Assurance Specialist (Consultant) to join a high-performing Digital Excellence team delivering complex, technology-led transformation programmes. You will play a critical role in assuring the quality, reliability and robustness of digital solutions across a wide range of client engagements. Automation Assurance Specialist - Consultant (Digital Excellence) Salary: 50,000 - 55,000 plus benefits, perks, healthcare options! Client: Global IT Consultancy Location: Either London, Manchester or Glasgow Office (Hybrid working) Role type: Permanent, full-time Note: Unlimited Training Budget For Any External Certifications You Wish To Achieve! The Role We are seeking an Automation Assurance Specialist (Consultant level) to join a high-performing Digital Excellence team delivering complex, technology-led transformation programmes. You will play a critical role in assuring the quality, reliability and robustness of digital solutions across a wide range of client engagements. You will be responsible for designing, implementing and maintaining high-quality automated testing solutions, providing confidence that systems meet functional and non-functional requirements across accessibility, performance, security and integration. This role offers exposure to a wide variety of technologies and large-scale, technically challenging projects, working within multidisciplinary engineering teams in agile environments. What You'll Be Doing Deliver cross-functional engineering and assurance activities within small, collaborative teams Design, build and maintain clean, scalable and maintainable automation test suites Execute automated and manual testing across functional, integration and exploratory testing Embed test automation into CI/CD pipelines to support continuous delivery Assure technical delivery quality by working closely with engineers, designers and stakeholders Continuously improve testing practices, tools and processes Coach and mentor colleagues, sharing best practice and supporting team capability growth Contribute to innovation, inclusion, collaboration and self-organising team culture Support business development, internal initiatives and knowledge-sharing activities Technology Exposure You will gain experience across a broad technical landscape, including but not limited to: Java, JavaScript, Node.js, Kotlin Spring Boot and RESTful microservices Selenium, Playwright, Cucumber, REST testing NoSQL databases Git-based version control systems Your Profile Essential experience: ISTQB Foundation certification (or equivalent experience) Strong experience in functional, integration, exploratory and manual testing Experience building and contributing to automation frameworks (Java or JavaScript) Hands-on experience with backend and frontend automated testing tools Experience working in agile delivery environments Confident using Git-based version control tools (GitHub, GitLab etc.) Ability to self-manage and proactively identify improvement areas Desirable experience: Non-functional testing (Accessibility, Performance, Security) CI/CD tooling (GitHub Actions, GitLab CI, Jenkins) Docker for testing environments Maven for test execution Accessibility standards and test automation best practices Familiarity with the (url removed) Design System Experience applying structured evaluation methods, including AI evaluations Please " Apply " or contact Aaron Perdesi on (phone number removed) to learn more!
Application Software Engineer (Mid level - Senior), Degree, UI/UX, JavaScript Location: Cambridge, UK (Hybrid) Salary: 35,000 - 55,000 (depending on experience) The Company Join a pioneering AI and machine learning software house, led by award-winning entrepreneurs and known for pushing the boundaries of innovation. You'll be part of a collaborative, high-calibre team working on impactful, real-world projects, leveraging cutting-edge technologies including modern JavaScript libraries and front-end frameworks. What We're Looking For Education & Skills - A 2:1 or higher in Computer Science, Engineering, Physics, or a related field from a top university. - AAB or higher at A-levels. - Strong mathematical and analytical thinking skills. - Excellent communication and teamwork abilities, happy to be in a team and share ideas. Technical Skills - Exceptional with one or more of the following: Programming: Node.js, Python, Java, JavaScript (React, Angular, Vue.js), JavaScript libraries (React, Angular, Vue.js) - Databases: PostgreSQL, Elasticsearch, Redis - A proactive, problem-solving mindset and eagerness to learn. - Some UI or UX design work - Ideally a competent programmer in Java or Python to a high level - Someone that has been involved both backend and front end could do very well here. Experience - The sweet spot for the Application Software Engineer position is someone with three to five years industry experience in a cutting edge tech company. - Passion for software engineering and a desire to build scalable, high-quality applications. The Role As an Application Software Engineer, you'll: - Contribute to the design, development, and implementation of software applications. - Collaborate with a diverse and talented team of engineers. - Learn from an experience team whilst sharing your own ideas. - Designing smart web based applications, chance to work end back and front end. Why Join Us? - Work with a globally respected AI software company. - Competitive salary and benefits. - Hybrid working model with a collaborative office culture in Cambridge. - Learn from top experts in AI and machine learning. - Clear progression path and opportunities to grow your career. Application Process - Submit a CV that highlights your academic achievements and relevant experience. - Initial discussions will take place before your application is submitted to the employer. Ready to take the next step in your software engineering career? Apply now! Adecco is acting as an Employment Agency. We are an equal opportunities employer.
Jan 06, 2026
Full time
Application Software Engineer (Mid level - Senior), Degree, UI/UX, JavaScript Location: Cambridge, UK (Hybrid) Salary: 35,000 - 55,000 (depending on experience) The Company Join a pioneering AI and machine learning software house, led by award-winning entrepreneurs and known for pushing the boundaries of innovation. You'll be part of a collaborative, high-calibre team working on impactful, real-world projects, leveraging cutting-edge technologies including modern JavaScript libraries and front-end frameworks. What We're Looking For Education & Skills - A 2:1 or higher in Computer Science, Engineering, Physics, or a related field from a top university. - AAB or higher at A-levels. - Strong mathematical and analytical thinking skills. - Excellent communication and teamwork abilities, happy to be in a team and share ideas. Technical Skills - Exceptional with one or more of the following: Programming: Node.js, Python, Java, JavaScript (React, Angular, Vue.js), JavaScript libraries (React, Angular, Vue.js) - Databases: PostgreSQL, Elasticsearch, Redis - A proactive, problem-solving mindset and eagerness to learn. - Some UI or UX design work - Ideally a competent programmer in Java or Python to a high level - Someone that has been involved both backend and front end could do very well here. Experience - The sweet spot for the Application Software Engineer position is someone with three to five years industry experience in a cutting edge tech company. - Passion for software engineering and a desire to build scalable, high-quality applications. The Role As an Application Software Engineer, you'll: - Contribute to the design, development, and implementation of software applications. - Collaborate with a diverse and talented team of engineers. - Learn from an experience team whilst sharing your own ideas. - Designing smart web based applications, chance to work end back and front end. Why Join Us? - Work with a globally respected AI software company. - Competitive salary and benefits. - Hybrid working model with a collaborative office culture in Cambridge. - Learn from top experts in AI and machine learning. - Clear progression path and opportunities to grow your career. Application Process - Submit a CV that highlights your academic achievements and relevant experience. - Initial discussions will take place before your application is submitted to the employer. Ready to take the next step in your software engineering career? Apply now! Adecco is acting as an Employment Agency. We are an equal opportunities employer.
GenAI Full Stack Engineer - Consultant / Senior Consultant Salary: 45,000 - 70,000 pa + 4,000 Bonus plus benefits, perks and healthcare options Job Type: Permanent - Hybrid / 2 x days per week - Travel to client site Base Locations: London, Manchester, Newcastle, Glasgow Overview: We're looking for a GenAI Full Stack Engineer who is passionate about solving real-world challenges through technology. You'll work closely with senior stakeholders both internally and within key clients to create GenAI strategies that translate business issues into relevant technical solutions and competitive propositions that are scalable, secure, and sustainable. Your Role: Collaborate with the team to develop GenAI proof-of-concepts (POCs) for clients using technologies like Retrieval-Augmented Generation (RAG) and intelligent agents. Scale existing POCs to production-ready solutions for customer use. Design and develop Full Stack applications for both GenAI and non-GenAI projects. Support the development of infrastructure to enable robust end-to-end solutions. Grow your skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel AI (in Python or JavaScript). LLM experience: Practical experience with Large Language Models (LLMs) such as OpenAI, Anthropic, Mistral, or Llama, and tools like Ollama. Cloud Platforms: Proficiency in AWS or Azure for hosting and deployment. Containerization and Orchestration: Hands-on experience with Docker, Kubernetes, and Docker Compose. Infrastructure as Code (IaC): Exposure to tools like Terraform. Monitoring Tools: Familiarity with LLM monitoring tools like Langsmith, Langfuse, or similar. CI/CD: Experience with continuous integration and deployment tools such as GitLab, GitHub, or Jenkins. Vector Databases: Experience with and (but not limited to) ChromaDB, Pinecone, PGVector, MongoDB , Qdrant etc. NoSQL: Familiarity with NoSQL databases (e.g., MongoDB preferred). SQL: Experience working with SQL databases like PostgreSQL. Proficient in Git and version control platforms like GitHub, GitLab, etc. To be successfully appointed to this role, it is a requirement to obtain Security Check (SC) clearance. If you're ready to take the next step in your career and thrive in a fast-paced, innovative environment, we want to hear from you! Please send updated CV to
Jan 06, 2026
Full time
GenAI Full Stack Engineer - Consultant / Senior Consultant Salary: 45,000 - 70,000 pa + 4,000 Bonus plus benefits, perks and healthcare options Job Type: Permanent - Hybrid / 2 x days per week - Travel to client site Base Locations: London, Manchester, Newcastle, Glasgow Overview: We're looking for a GenAI Full Stack Engineer who is passionate about solving real-world challenges through technology. You'll work closely with senior stakeholders both internally and within key clients to create GenAI strategies that translate business issues into relevant technical solutions and competitive propositions that are scalable, secure, and sustainable. Your Role: Collaborate with the team to develop GenAI proof-of-concepts (POCs) for clients using technologies like Retrieval-Augmented Generation (RAG) and intelligent agents. Scale existing POCs to production-ready solutions for customer use. Design and develop Full Stack applications for both GenAI and non-GenAI projects. Support the development of infrastructure to enable robust end-to-end solutions. Grow your skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel AI (in Python or JavaScript). LLM experience: Practical experience with Large Language Models (LLMs) such as OpenAI, Anthropic, Mistral, or Llama, and tools like Ollama. Cloud Platforms: Proficiency in AWS or Azure for hosting and deployment. Containerization and Orchestration: Hands-on experience with Docker, Kubernetes, and Docker Compose. Infrastructure as Code (IaC): Exposure to tools like Terraform. Monitoring Tools: Familiarity with LLM monitoring tools like Langsmith, Langfuse, or similar. CI/CD: Experience with continuous integration and deployment tools such as GitLab, GitHub, or Jenkins. Vector Databases: Experience with and (but not limited to) ChromaDB, Pinecone, PGVector, MongoDB , Qdrant etc. NoSQL: Familiarity with NoSQL databases (e.g., MongoDB preferred). SQL: Experience working with SQL databases like PostgreSQL. Proficient in Git and version control platforms like GitHub, GitLab, etc. To be successfully appointed to this role, it is a requirement to obtain Security Check (SC) clearance. If you're ready to take the next step in your career and thrive in a fast-paced, innovative environment, we want to hear from you! Please send updated CV to
Senior Backend Software Engineer - Cloud-Native Platform Up to 85,000 Hybrid (Nottinghamshire HQ) I'm delighted to be once again recruiting on behalf of my technology-led client that's building a modern, cloud-native platform from the ground up. They're looking for a Senior Backend Software Engineer to join a high-performing team focused on delivering scalable, secure, and high-quality services using the latest tools and engineering practices. This is a hands-on role for someone who enjoys solving complex problems, working in a microservices environment, and contributing to architectural decisions. The team values clean code, automation, and continuous improvement-and they're looking for someone who shares that mindset. Key responsibilities as the Senior Back-End Software Engineer are: Design and develop backend services using Node.js and TypeScript , deployed in a cloud-native environment. Build and maintain GraphQL and REST APIs to support a range of digital products and integrations. Collaborate with architects, product managers, and other engineers to shape scalable technical solutions. Integrate with third-party platforms and services, including content systems, payment providers, and internal tools. Contribute to CI/CD pipelines, infrastructure automation, and DevOps practices. Promote engineering best practices across testing, documentation, and code quality. Stay up to date with emerging technologies and bring innovative ideas to the team. Skills & Experience needed: Essential: Strong experience with Node.js and TypeScript Proven background in microservices architecture Solid understanding of GraphQL and RESTful API design Experience with SQL and NoSQL databases Familiarity with CI/CD, automated testing, and modern development workflows Desirable: Experience with Azure or other cloud platforms Knowledge of Infrastructure as Code (e.g., Terraform) Exposure to event-driven architecture and messaging systems Containerization and orchestration experience (e.g., Docker, Kubernetes) Package & Working Model Salary: Up to 85,000 Hybrid working: 3 days per week onsite in Nottinghamshire HQ Flexible hours and collaborative team culture Opportunity to work on a greenfield platform using modern technologies If you're a senior engineer looking for a fresh challenge in a tech-first environment, I'd love to speak with you. Drop me a message for a confidential chat or to learn more about the team and the opportunity. Studies suggest that women tend not to apply for a job if their CV isn't a perfect fit. Here, talent takes precedence over experience. So, if you like the role and think you could be awesome at it in time, go ahead and apply.
Jan 06, 2026
Full time
Senior Backend Software Engineer - Cloud-Native Platform Up to 85,000 Hybrid (Nottinghamshire HQ) I'm delighted to be once again recruiting on behalf of my technology-led client that's building a modern, cloud-native platform from the ground up. They're looking for a Senior Backend Software Engineer to join a high-performing team focused on delivering scalable, secure, and high-quality services using the latest tools and engineering practices. This is a hands-on role for someone who enjoys solving complex problems, working in a microservices environment, and contributing to architectural decisions. The team values clean code, automation, and continuous improvement-and they're looking for someone who shares that mindset. Key responsibilities as the Senior Back-End Software Engineer are: Design and develop backend services using Node.js and TypeScript , deployed in a cloud-native environment. Build and maintain GraphQL and REST APIs to support a range of digital products and integrations. Collaborate with architects, product managers, and other engineers to shape scalable technical solutions. Integrate with third-party platforms and services, including content systems, payment providers, and internal tools. Contribute to CI/CD pipelines, infrastructure automation, and DevOps practices. Promote engineering best practices across testing, documentation, and code quality. Stay up to date with emerging technologies and bring innovative ideas to the team. Skills & Experience needed: Essential: Strong experience with Node.js and TypeScript Proven background in microservices architecture Solid understanding of GraphQL and RESTful API design Experience with SQL and NoSQL databases Familiarity with CI/CD, automated testing, and modern development workflows Desirable: Experience with Azure or other cloud platforms Knowledge of Infrastructure as Code (e.g., Terraform) Exposure to event-driven architecture and messaging systems Containerization and orchestration experience (e.g., Docker, Kubernetes) Package & Working Model Salary: Up to 85,000 Hybrid working: 3 days per week onsite in Nottinghamshire HQ Flexible hours and collaborative team culture Opportunity to work on a greenfield platform using modern technologies If you're a senior engineer looking for a fresh challenge in a tech-first environment, I'd love to speak with you. Drop me a message for a confidential chat or to learn more about the team and the opportunity. Studies suggest that women tend not to apply for a job if their CV isn't a perfect fit. Here, talent takes precedence over experience. So, if you like the role and think you could be awesome at it in time, go ahead and apply.
Role: Front End Developer Location: Remote - Occasional travel to Croydon Duration: 12 Months Day rate: 520 Umbrella Only SC clearance required About the Role We are looking for a skilled Front-End Engineer to join our team and help build high-quality, user-focused web applications. You'll work closely with designers, product managers, and backend engineers to deliver maintainable front-end solutions using modern web technologies. Responsibilities Build and maintain scalable front-end applications using React Develop clean, reusable, and well-structured code using TypeScript and JavaScript Translate designs and product requirements into high-quality UI components Optimize applications for performance, accessibility, and cross-browser compatibility Collaborate with cross-functional teams to deliver features end-to-end Write and maintain front-end tests to ensure application quality (where applicable) Required Skills & Experience Strong experience with React (React.js / ReactJS) Proficiency in TypeScript and JavaScript for browser-based applications Solid understanding of modern front-end development practices (ES6+, component-based architecture) Experience working with REST APIs and asynchronous data handling Familiarity with Git and collaborative development workflows Nice to Have Experience with Playwright for front-end or end-to-end testing Exposure to other testing tools or frameworks Understanding of accessibility (WCAG) and performance best practices Experience working in agile or product-driven teams
Jan 06, 2026
Contractor
Role: Front End Developer Location: Remote - Occasional travel to Croydon Duration: 12 Months Day rate: 520 Umbrella Only SC clearance required About the Role We are looking for a skilled Front-End Engineer to join our team and help build high-quality, user-focused web applications. You'll work closely with designers, product managers, and backend engineers to deliver maintainable front-end solutions using modern web technologies. Responsibilities Build and maintain scalable front-end applications using React Develop clean, reusable, and well-structured code using TypeScript and JavaScript Translate designs and product requirements into high-quality UI components Optimize applications for performance, accessibility, and cross-browser compatibility Collaborate with cross-functional teams to deliver features end-to-end Write and maintain front-end tests to ensure application quality (where applicable) Required Skills & Experience Strong experience with React (React.js / ReactJS) Proficiency in TypeScript and JavaScript for browser-based applications Solid understanding of modern front-end development practices (ES6+, component-based architecture) Experience working with REST APIs and asynchronous data handling Familiarity with Git and collaborative development workflows Nice to Have Experience with Playwright for front-end or end-to-end testing Exposure to other testing tools or frameworks Understanding of accessibility (WCAG) and performance best practices Experience working in agile or product-driven teams
Job Title: Python Engineer Location: Fully Remote (England) Clearance: Active SC Clearance Required Duration : 12 month contract - will extend Project: Major Defence Programme Secure Data Exchange Platform Core Mission Build and harden Python based services and data processing components that underpin a secure, scalable, distributed defence platform. Transform prototype code into operational, production ready modules. This is a hands on engineering role requiring strong Python skills, experience in secure or mission critical environments, and the ability to contribute across backend services, data pipelines, integration layers, and automation. Key Responsibilities • Develop, refine, and maintain Python microservices and backend components supporting secure data exchange. • Translate prototype logic and PoC implementations into scalable, production-grade code. • Implement APIs, integration layers, and event-driven services aligned to agreed architecture patterns. • Apply secure coding practices, identity controls, and data protection mechanisms. • Contribute to CI/CD pipelines, automated testing, and integration with Infrastructure-as-Code workflows. • Improve performance, fault tolerance, and observability across distributed services. • Collaborate closely with solution architects, security architects, and engineering teams. • Support validation, hardening, and iterative refinement of backend services. • Produce technical documentation, service diagrams, and implementation notes aligned with programme standards. Required Experience • Strong hands on experience with Python • Solid understanding of APIs, microservices, event-driven architectures, and messaging patterns. • Practical experience with secure development practices, authentication/authorisation, and zero-trust principles. • Experience working with containerised workloads (Docker; advantage if familiar with Kubernetes). • Proficiency with CI/CD tooling, automated tests, and modern software engineering practices. • Ability to work effectively within a senior, cross-functional architecture and engineering team. • Strong knowledge of networking fundamentals, data structures, and secure service design. • Comfortable working in a highly regulated, security-focused environment. Apply now for immediate consideration
Jan 05, 2026
Contractor
Job Title: Python Engineer Location: Fully Remote (England) Clearance: Active SC Clearance Required Duration : 12 month contract - will extend Project: Major Defence Programme Secure Data Exchange Platform Core Mission Build and harden Python based services and data processing components that underpin a secure, scalable, distributed defence platform. Transform prototype code into operational, production ready modules. This is a hands on engineering role requiring strong Python skills, experience in secure or mission critical environments, and the ability to contribute across backend services, data pipelines, integration layers, and automation. Key Responsibilities • Develop, refine, and maintain Python microservices and backend components supporting secure data exchange. • Translate prototype logic and PoC implementations into scalable, production-grade code. • Implement APIs, integration layers, and event-driven services aligned to agreed architecture patterns. • Apply secure coding practices, identity controls, and data protection mechanisms. • Contribute to CI/CD pipelines, automated testing, and integration with Infrastructure-as-Code workflows. • Improve performance, fault tolerance, and observability across distributed services. • Collaborate closely with solution architects, security architects, and engineering teams. • Support validation, hardening, and iterative refinement of backend services. • Produce technical documentation, service diagrams, and implementation notes aligned with programme standards. Required Experience • Strong hands on experience with Python • Solid understanding of APIs, microservices, event-driven architectures, and messaging patterns. • Practical experience with secure development practices, authentication/authorisation, and zero-trust principles. • Experience working with containerised workloads (Docker; advantage if familiar with Kubernetes). • Proficiency with CI/CD tooling, automated tests, and modern software engineering practices. • Ability to work effectively within a senior, cross-functional architecture and engineering team. • Strong knowledge of networking fundamentals, data structures, and secure service design. • Comfortable working in a highly regulated, security-focused environment. Apply now for immediate consideration
Senior Golang Developer - Kubernetes - Financial Services Excellent opportunity opens for an experienced Developer strong on Golang with experience in AWS and Kubernetes to join a highly regarded Financial Services entity's London office. You will act as the team lead and play a key role in building mission-critical financial applications that power trading, investment, and risk management systems across the firm. If you are passionate about working in a dynamic, fast-paced environment and are eager to apply your technical expertise to the financial services industry, this is the role for you. Key Responsibilities: Design, develop, and maintain high-performance Back End services using GoLang to support financial applications and services , including trading platforms, investment systems, and risk management tools. Build and deploy cloud-based solutions using Amazon Web Services (AWS), including services such as EC2, S3, RDS, DynamoDB, and Lambda to create scalable, reliable, and secure infrastructure. Implement and manage containerized applications using Kubernetes, ensuring seamless orchestration, scaling, and resilience in a cloud environment. Write clean, efficient, and well-documented code while following best practices for financial systems development, focusing on performance and security. Collaborate with other development teams, business analysts, and stakeholders to define and refine requirements, and ensure that applications meet financial regulatory standards and business needs. Optimize the performance of Back End services, ensuring low-latency responses and high availability, critical for financial services. Implement CI/CD pipelines, automated testing, and monitoring systems to ensure the reliability and stability of production systems. Proactively identify issues and bottlenecks in existing systems and propose solutions to improve the system's performance and scalability. Stay updated with new tools, technologies, and industry trends in cloud computing, containerization, and financial systems to continuously improve development practices and outcomes. Ideal Skills: Proven experience (2+ years) in GoLang Back End development, with a strong focus on performance optimization and building scalable systems for high-volume, high-frequency financial applications. Strong experience working with Amazon Web Services (AWS), including EC2, S3, RDS, DynamoDB, Lambda, and other cloud-native technologies. Hands-on experience with Kubernetes for deploying, managing, and scaling containerized applications in a cloud environment. Solid understanding of financial systems and services, particularly in areas such as trading platforms, investment management, and risk analytics. Experience in building microservices architectures and working with APIs (RESTful, gRPC, etc.) to integrate various systems. Strong knowledge of containerization (Docker) and continuous integration/deployment (CI/CD) practices. Experience with database systems (relational and NoSQL) and working with financial data. Familiarity with DevOps practices and tools to streamline the development life cycle, such as infrastructure-as-code (eg, Terraform or CloudFormation). Ability to troubleshoot and resolve issues in production environments, ensuring uptime and performance in high-pressure, mission-critical scenarios. Excellent communication skills to collaborate effectively with cross-functional teams and stakeholders in a fast-paced financial environment. Experience with serverless computing (AWS Lambda, etc.) to create efficient and scalable solutions. Knowledge of financial industry regulations and standards, particularly around data security and privacy. Familiarity with event-driven architectures or message queues (eg, Kafka, RabbitMQ) for Real Time data processing. Experience with automated testing frameworks and continuous delivery tools like Jenkins, GitLab CI, or CircleCI. Understanding of performance monitoring and observability tools such as CloudWatch, Prometheus, or Datadog. Interested? Please Apply! Golang Go AWS Kubernetes Terraform Bank Banking Finance Financial Services Crypto Blockchain Web3 Trading Exchange Digital Assets Hybrid Flexible Developer Software Engineer Backend Developer Golang Engineer Kafka Apache Kafka RabbitMQ AWS Lambda Cloud Platform
Jan 05, 2026
Full time
Senior Golang Developer - Kubernetes - Financial Services Excellent opportunity opens for an experienced Developer strong on Golang with experience in AWS and Kubernetes to join a highly regarded Financial Services entity's London office. You will act as the team lead and play a key role in building mission-critical financial applications that power trading, investment, and risk management systems across the firm. If you are passionate about working in a dynamic, fast-paced environment and are eager to apply your technical expertise to the financial services industry, this is the role for you. Key Responsibilities: Design, develop, and maintain high-performance Back End services using GoLang to support financial applications and services , including trading platforms, investment systems, and risk management tools. Build and deploy cloud-based solutions using Amazon Web Services (AWS), including services such as EC2, S3, RDS, DynamoDB, and Lambda to create scalable, reliable, and secure infrastructure. Implement and manage containerized applications using Kubernetes, ensuring seamless orchestration, scaling, and resilience in a cloud environment. Write clean, efficient, and well-documented code while following best practices for financial systems development, focusing on performance and security. Collaborate with other development teams, business analysts, and stakeholders to define and refine requirements, and ensure that applications meet financial regulatory standards and business needs. Optimize the performance of Back End services, ensuring low-latency responses and high availability, critical for financial services. Implement CI/CD pipelines, automated testing, and monitoring systems to ensure the reliability and stability of production systems. Proactively identify issues and bottlenecks in existing systems and propose solutions to improve the system's performance and scalability. Stay updated with new tools, technologies, and industry trends in cloud computing, containerization, and financial systems to continuously improve development practices and outcomes. Ideal Skills: Proven experience (2+ years) in GoLang Back End development, with a strong focus on performance optimization and building scalable systems for high-volume, high-frequency financial applications. Strong experience working with Amazon Web Services (AWS), including EC2, S3, RDS, DynamoDB, Lambda, and other cloud-native technologies. Hands-on experience with Kubernetes for deploying, managing, and scaling containerized applications in a cloud environment. Solid understanding of financial systems and services, particularly in areas such as trading platforms, investment management, and risk analytics. Experience in building microservices architectures and working with APIs (RESTful, gRPC, etc.) to integrate various systems. Strong knowledge of containerization (Docker) and continuous integration/deployment (CI/CD) practices. Experience with database systems (relational and NoSQL) and working with financial data. Familiarity with DevOps practices and tools to streamline the development life cycle, such as infrastructure-as-code (eg, Terraform or CloudFormation). Ability to troubleshoot and resolve issues in production environments, ensuring uptime and performance in high-pressure, mission-critical scenarios. Excellent communication skills to collaborate effectively with cross-functional teams and stakeholders in a fast-paced financial environment. Experience with serverless computing (AWS Lambda, etc.) to create efficient and scalable solutions. Knowledge of financial industry regulations and standards, particularly around data security and privacy. Familiarity with event-driven architectures or message queues (eg, Kafka, RabbitMQ) for Real Time data processing. Experience with automated testing frameworks and continuous delivery tools like Jenkins, GitLab CI, or CircleCI. Understanding of performance monitoring and observability tools such as CloudWatch, Prometheus, or Datadog. Interested? Please Apply! Golang Go AWS Kubernetes Terraform Bank Banking Finance Financial Services Crypto Blockchain Web3 Trading Exchange Digital Assets Hybrid Flexible Developer Software Engineer Backend Developer Golang Engineer Kafka Apache Kafka RabbitMQ AWS Lambda Cloud Platform
CBSbutler Holdings Limited trading as CBSbutler
Nursling, Hampshire
Senior GUI Software Engineer (C# / C++) - Electronic Warfare Location : Southampton, Hampshire (Hybrid: 3 days per week onsite) Duration: 6 Months (Initial) Rate: 735 per day (Inside IR35) Security Clearance: SC Clearance (Must be currently held) The Opportunity Are you a versatile Software Engineer who excels at the intersection of high-performance backend logic and intuitive user interfaces? We are seeking a high-calibre GUI Software Engineer to join a world-class engineering team at the forefront of UK defence innovation. Working within a pioneering technology consultancy, you will play a pivotal role in evolving an advanced Electronic Warfare (EW) suite. This is not "standard" application development. You will be building sophisticated interfaces that visualise complex data from Array Processing, Communications, and Sensor domains, ensuring mission-critical information is delivered with precision and speed. The Role As a GUI Software Engineer, you will bridge the gap between complex signal processing and the end-user experience. You will: Architect & Implement: Design efficient, real-time systems that handle high-throughput data. Innovate: Apply emerging technologies to keep the Electronic Warfare suite at the cutting edge of the industry. Collaborate: Work across diverse projects involving Software Defined Radio (SDR) and advanced communications. End-to-End Delivery: Develop new features from concept to deployment, ensuring robust unit and system testing throughout. Your Technical Profile To be successful in this role, you will need a dual-strength background in both UI and systems-level programming: The Essentials: C# Expertise: Deep experience in User Interface development and associated backend services. C++ Proficiency: Strong skills in C++ for services and Digital Signal Processing (DSP). DevOps Mindset: Proven experience with modern version control (Git) and CI/CD pipelines. Testing: A rigorous approach to unit and system testing. Clearance: You must hold current SC Clearance to be considered for this role. The "Value Add" (Desirable): Experience building UIs for scientific or technical applications. Expertise in WPF for Windows-based interfaces. Familiarity with SQL databases. Knowledge of modern communication protocols (REST, WebSockets). An interest in or experience with Software Defined Radio (SDR) platforms.
Jan 05, 2026
Contractor
Senior GUI Software Engineer (C# / C++) - Electronic Warfare Location : Southampton, Hampshire (Hybrid: 3 days per week onsite) Duration: 6 Months (Initial) Rate: 735 per day (Inside IR35) Security Clearance: SC Clearance (Must be currently held) The Opportunity Are you a versatile Software Engineer who excels at the intersection of high-performance backend logic and intuitive user interfaces? We are seeking a high-calibre GUI Software Engineer to join a world-class engineering team at the forefront of UK defence innovation. Working within a pioneering technology consultancy, you will play a pivotal role in evolving an advanced Electronic Warfare (EW) suite. This is not "standard" application development. You will be building sophisticated interfaces that visualise complex data from Array Processing, Communications, and Sensor domains, ensuring mission-critical information is delivered with precision and speed. The Role As a GUI Software Engineer, you will bridge the gap between complex signal processing and the end-user experience. You will: Architect & Implement: Design efficient, real-time systems that handle high-throughput data. Innovate: Apply emerging technologies to keep the Electronic Warfare suite at the cutting edge of the industry. Collaborate: Work across diverse projects involving Software Defined Radio (SDR) and advanced communications. End-to-End Delivery: Develop new features from concept to deployment, ensuring robust unit and system testing throughout. Your Technical Profile To be successful in this role, you will need a dual-strength background in both UI and systems-level programming: The Essentials: C# Expertise: Deep experience in User Interface development and associated backend services. C++ Proficiency: Strong skills in C++ for services and Digital Signal Processing (DSP). DevOps Mindset: Proven experience with modern version control (Git) and CI/CD pipelines. Testing: A rigorous approach to unit and system testing. Clearance: You must hold current SC Clearance to be considered for this role. The "Value Add" (Desirable): Experience building UIs for scientific or technical applications. Expertise in WPF for Windows-based interfaces. Familiarity with SQL databases. Knowledge of modern communication protocols (REST, WebSockets). An interest in or experience with Software Defined Radio (SDR) platforms.
