23 jobs found

Senior C# / .NET Developer Financial Services (Risk & Securities Lending) Location: London (Hybrid) Role Type: 6 Months Contract, Rate: 585/day inside IR35 Are you an expert in C# / .NET with a deep understanding of the mechanics behind Risk Management or Securities Lending ? We are looking for a Senior Developer to join a leading global financial institution, building high-performance systems that drive critical trading and financing workflows. The Opportunity You will play a pivotal role in designing and maintaining robust platforms used for complex risk calculations and high-throughput financial data processing. This is an environment where your technical expertise in Object-Oriented Programming (OOP) and API design will directly impact global operations and regulatory compliance. Key Responsibilities Engineering: Build scalable, testable, and maintainable applications using .NET Core and RESTful APIs . Risk Workflows: Implement exposure calculations, limit monitoring, and reporting systems. Collaboration: Work alongside Quants, Risk Managers, and Front Office teams to translate business needs into technical reality. Architecture: Participate in high-level technical design and architectural discussions to evolve the platform. Requirements Technical Core: Extensive experience in C#, .NET, SQL Server, and CI/CD pipelines. Domain Expertise: Proven track record in Financial Services , specifically within Risk, Securities Lending, Prime Brokerage, or Collateral . Regulatory Knowledge: Familiarity with frameworks such as Basel III/IV, RWA, or CCAR is highly beneficial. Experience: Ideally 10+ years of professional experience in complex, regulated environments. Why Apply? This role offers the chance to tackle the technical challenges of front-to-back trading systems while working with large-scale data sets in a collaborative, Agile environment. If you are a delivery-focused developer who enjoys solving intricate analytical problems, we want to hear from you. Please apply here or share your updated resume to (url removed) Randstad Technologies is acting as an Employment Business in relation to this vacancy.

Use your Java and AWS knowledge to build secure, scalable cloud-based services for medical researchers London with hybrid working; to 90k DoE + options and benefits This company is developing an AWS-based platform to securely share medical diagnostics between clinicians and researchers worldwide, and enable online characterisation and measurements from scan images. This will feed into a better understanding of disease processes and ultimately better treatments for patients. The back end of their technology stack comprises Java-based microservices running on AWS. Data security and integrity is of paramount importance, and the solution needs to be compliant with healthcare industry software standards - we are therefore keen to hear from applicants with relevant experience in healthcare technology. Success in this senior role calls for excellent software development skills in Java (or a closely related OO language), and a strong understanding of AWS is essential. You will also need excellent communication and collaboration skills, and be proactive in understanding the needs of stakeholders and how their underlying needs feed into the software requirements. You will need: A solid academic background with a degree in Computer Science, or a similar subject. Substantial commercial software engineering experience and familiarity with Agile development processes, CI/CD, and software testing strategies. Strong coding skills, ideally in Java, a good understanding of the AWS ecosystem, and careful attention to writing high quality code. Full, existing, and unrestricted right to work in the UK without the need for sponsorship either now or in future. Nice-to-haves: Docker, Kubernetes, Infrastructure-as-code, DynamoDB, Spring Boot, Gradle, and experience working under software engineering standards for healthcare such as ISO14385. This is a mostly remote role, with occasional days on-site at the company's offices in London. You will therefore need to be based in the UK within a convenient travel distance. This role has a positive and tangible real-world impact, and you will be working with a friendly mission driven team motivated to accelerate medical research for the benefit of patients. An excellent salary, options scheme, and benefits package are on offer to the successful candidate. Another top job from ECM, the high-tech recruitment experts. Even if this job's not quite right, do contact us now - we may well have the ideal job for you. To discuss your requirements call (phone number removed) or email your CV. We will always ask before forwarding your CV. Please apply (quoting ref: CV27629 ) only if you are eligible to live and work in the UK. By submitting your details you certify that the information you provide is accurate.

Senior Full Stack Developer 12-Month Fixed-Term Contract Hybrid Working (2 Days per Week in London) Salary 54,000 - 61,000 pa plus generous pension and holidays A prestigious client is seeking an experienced Senior Full Stack Developer to join a high-performing technology team delivering innovative AI and automation solutions at scale. This is an exciting opportunity to work on a modern, cloud-native platform using cutting-edge technologies across backend services, integrations, and user-facing applications. You'll play a key role in shaping engineering standards, influencing technical direction, and delivering high-quality software within a collaborative Agile environment. The Role As a Senior Full Stack Developer, you will focus primarily on backend engineering using Go , while also contributing to modern React-based frontend applications. You'll work closely with developers, architects, and product teams to build scalable, secure, and observable solutions deployed through Kubernetes-based infrastructure. This is a hands-on senior engineering role ideal for someone who enjoys solving complex technical challenges, mentoring others, and driving best practice across software delivery. Key Responsibilities Design, develop and maintain scalable backend services in Go Build modern frontend applications using React Develop APIs, integrations and event-driven services Contribute to CI/CD pipelines and cloud-native deployments Review code and champion engineering best practices Improve application performance, observability and reliability Collaborate within Agile delivery teams across multiple projects Support technical decision-making and continuous improvement Skills & Experience We are looking for candidates with strong commercial experience in: Go / Golang backend development Full stack software engineering within Agile environments REST APIs, integrations and distributed systems React and modern frontend development CI/CD, Git and cloud-based delivery practices Docker and Kubernetes Code reviews, testing and engineering governance Experience with any of the following would be highly advantageous: Microsoft Azure Python GitOps tooling (Argo CD / Flux) Observability tooling (Prometheus, Grafana, OpenTelemetry) AI/LLM-enabled applications Event-driven architectures and messaging platforms What's on Offer Opportunity to work on cutting-edge AI and cloud-native technologies Hybrid working model with flexibility Collaborative, forward-thinking engineering environment High-profile programme of work with real organisational impact 54,000 - 61,000 salary and benefits package If you are a passionate senior engineer looking for your next challenge within a modern technology environment, we would love to hear from you. Please send your CV to Laura at (url removed) Services advertised are those of an employment agency.

Senior Cloud / DevOps Architect (DV Cleared) Clearance: Active DV clearance is essential for this role Sector: Defence & Security Location : Multiple locations + hybrid About the Role Play a key role in shaping the engineering strategy across Cloud Native and application development. You'll act as both a technical expert and an inspiring leader, driving DevOps excellence while building inclusive, high-performing teams. What You'll Be Doing Design, build, and operate cloud-based platforms and systems Drive best practices across DevOps and Site Reliability Engineering (SRE) Implement infrastructure as code, CI/CD pipelines, and automated deployments Collaborate closely with developers, testers, and business analysts Ensure systems are scalable, maintainable, and resilient Champion observability through monitoring, logging, and alerting Develop reusable frameworks and tooling for wider engineering teams Mentor junior engineers and contribute to a culture of continuous improvement Essential Skills & Experience Active DV (Developed Vetting) clearance Strong background in software engineering or IT operations Cloud expertise (AWS, Azure, GCP, or Oracle Cloud) Infrastructure as Code (e.g. Terraform, CloudFormation, AWS SAM) Strong understanding ofDevOps practices: CI/CD pipelines Containerisation Deployment automation Experience in one or more of the following: Systems Administration Full Stack Development Virtualisation / Container platforms Configuration & environment management Scripting experience (Python, Bash, or Go) Experience implementing observability (monitoring, alerting, logging) Ability to establish and promote DevOps / SRE best practices If you receive suspicious outreach claiming to be from us, please contact us via the ManpowerGroup website.

Senior Android Developer London (Hybrid - 2 days in office) Salary: 65,000 - 85,000 DOE Are you ready to make a difference? Our client is on a mission to help millions save money when it matters most. With a portfolio of well-known consumer platforms, they reach over 20 million visitors monthly, transforming lives and empowering households across the UK. Why You'll Love Working Here: A vibrant, open-minded, and inclusive workplace High-performing teams that collaborate to create world-class experiences A culture where every voice matters and everyone belongs About the Role: We're seeking a passionate Senior Android Developer to join the Mobile Collective, enhancing a suite of high-traffic consumer apps. You'll be part of cross-functional squads, collaborating with product managers, designers, and engineers through the full software development life cycle. Your Responsibilities: Lead feature delivery and shape technical strategy Collaborate closely for pixel-perfect implementation Write clean, maintainable Kotlin code with Jetpack Compose Champion TDD, CI/CD, and other best practices Mentor and support fellow engineers What We're Looking For: Proven experience with Android apps using Kotlin and Jetpack Compose Strong understanding of mobile architecture and design patterns Passion for agile development and quick delivery Comfortable leveraging AI tools to boost productivity Collaborative mindset focused on continuous improvement Rewards & Benefits: 27 days holiday (rising to 30) + bank holidays Bonus scheme Pension with up to 6% employer contribution Enhanced shared parental leave (6 months paid for both parents) Work-from-anywhere scheme (2 weeks per year) Access to mental health platforms and financial coaching Apply now and be part of something great! Adecco is a disability-confident employer. It is important to us that we run an inclusive and accessible recruitment process to support candidates of all backgrounds and all abilities to apply. Adecco is committed to building a supportive environment for you to explore the next steps in your career. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you.

Microsoft Dynamics 365 F&O Software Engineer - Senior Consultant Salary: 70,000 - 80,000 pa + benefits, perks and healthcare options Job Type: Permanent - Hybrid Locations: London, Manchester, Glasgow, Woking, Birmingham, Newcastle, Telford, Liverpool Overview: Join a team delivering some of the most exciting and large-scale Microsoft transformation programmes in the market. Working across the full Microsoft technology stack, you'll play a key role in designing and delivering enterprise-grade Dynamics 365 F&O solutions that are scalable, secure and innovative. This is an opportunity to work on complex, high-impact projects for clients across the UK while collaborating with experienced Microsoft specialists and exploring emerging technologies including AI, cloud and modern integration platforms. Your Role: Design and implement scalable Microsoft Dynamics 365 F&O customisations and extensions aligned to client requirements. Own low-level technical solution design across end-to-end D365FO implementations. Develop and enhance enterprise ERP solutions using X and Microsoft technologies. Design and deliver integration solutions across the wider Microsoft ecosystem including Azure and Power Platform technologies. Lead and mentor development teams, supporting best practice engineering standards and delivery quality. Collaborate with Functional Consultants, Architects and client stakeholders throughout the full project lifecycle. Support CI/CD implementation, source control management and modern DevOps delivery approaches. Contribute to the growth of the wider Microsoft Dynamics capability through knowledge sharing, innovation and recruitment support. Explore emerging technologies including AI, automation and cloud-based Microsoft services to enhance client solutions. Your skills and experience: Strong experience delivering full lifecycle Microsoft Dynamics 365 F&O / AX implementations across multiple industry sectors. Advanced development experience using X within D365 Finance & Operations environments. Strong understanding of D365FO frameworks including SysOperations, Form Letter, Number Sequence, Address Book, Dimensions and Process Automation. Experience designing scalable integration solutions across Azure services and the wider Microsoft technology stack. Strong understanding of .NET technologies and modern enterprise development practices. Experience with Azure DevOps, Git and the Unified Developer Experience. Hands-on experience with CI/CD pipelines and source version control. Experience developing ISV solutions and reusable enterprise components. Knowledge of automated testing approaches including the ATL framework. Strong stakeholder engagement and communication skills within enterprise consulting environments. Experience leading, mentoring and supporting development teams. Familiarity with Agile delivery methodologies and project delivery practices. 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 C++ Developer (Hybrid, UK-Based) Location: London Salary : £80,000 - £100,000 + EMI Share Options + Private Medical Insurance Vacancy Type: Full-time, Permanent We take care of time, so our customers don t have to. At Hoptroff, we build nanosecond-accurate, software-driven timing systems used by global investment banks, telecoms operators, and broadcasters - including the MiFID II-compliant trade timestamping that financial regulators depend on. When microseconds aren t tight enough and milliseconds are an eternity, our software is what s keeping the world in sync. We re entering an exciting phase of growth and looking for a Senior C++ Developer to join our small, high-calibre engineering team. You ll write modern C++ (C+ or later) at the heart of our Linux-based clock and time synchronisation platform - tight, performance-sensitive code where jitter is measured in nanoseconds and correctness is non-negotiable. You ll own significant components of the platform, contribute to architecture, and work closely alongside a junior developer and a contractor on a tight, collaborative team. The Role Reporting to the Software Development Manager, you ll lead the design, development, and optimisation of C++ software within our Linux-based timing systems. Day to day, you will: Design, build, and optimise low-latency, high-precision C++ at the heart of our timing products - code where performance, determinism, and jitter really matter Make architectural decisions on systems that have to be correct, fast, and observable in production - balancing maintainability with the hard real-time constraints of precision timing Develop online and offline tooling to support time synchronisation and system monitoring Build and maintain automated test cases using Python-based system test frameworks Provide senior-level technical input across product, QA, hardware, and commercial conversations Share knowledge, review code, and support the development of our junior C++ developer Help shape engineering standards, tooling, and processes Essential Experience Extensive professional experience writing modern C++ in production - fluent in modern C++ idioms and confident with C+/23 features such as concepts, ranges, coroutines, and constant expressions (constexpr/consteval) A track record of delivering low-latency, performance-sensitive systems on Linux - production code where determinism, throughput, and tail latency matter Strong computer science fundamentals: data structures, algorithms, concurrency, performance optimisation Demonstrable ability to design software architecture and make sound technical trade-offs Strong debugging and profiling skills (perf, valgrind, sanitizers, flame graphs) - you ve cared about cache lines, lock contention, jitter, and tail latency, not just correctness Confident with Git, CI/CD pipelines, modern build tooling (CMake), and automated testing frameworks Clear technical communicator - you can explain trade-offs to engineers and non-engineers alike Nice to Have Linux networking experience (sockets, networking concepts and standard tooling) Experience interacting with hardware on Linux (device drivers, system interfaces, low-level I/O) Low-level Windows systems development (Windows APIs, system services, platform-specific debugging) PostgreSQL or other relational database experience Python and/or Go (Golang) for tooling, automation, or supporting services Familiarity with time synchronisation protocols such as PTP or NTP Open-source contributions or evidence of staying current with the C++ standard Open to integrating AI tools where they add value What We Offer Salary of £80,000 - £100,000, depending on experience EMI Share Options Private Medical Insurance Hybrid working - 2 days per week at our London (Shoreditch) office, with regular team events Based at a Shoreditch FinTech incubator - a thriving community of like-minded businesses with a full social calendar, networking opportunities, and (importantly) dog-friendly Your code will sit underneath MiFID II-compliant trade timestamps at major banks, broadcast sync at tier-1 broadcasters, and timing infrastructure at telecoms operators - tangible, high-stakes impact at global scale A team that invests in modern tooling and continuous learning To Apply If you feel you are a suitable candidate and would like to work for HopTroff, please do not hesitate to apply.

Security Architect (DevSecOps) Retail Hybrid: 3 days onsite per week in London 6 months+ £750 - £800 per day In short: We require a strong, application-focused Security Architect with a keen background in development or at least the ability to assure a product's architecture and have low-level, detailed conversations with engineers on the product whilst also facing off to more senior stakeholders in the business. In full: You will be responsible for augmenting the Security Architecture team with speciality skills and help scale our security presence across the wider technology and infrastructure teams. Provide engineering and product teams with direction and guidance for all security matters. Help product teams deliver new business features securely while balancing and clearly articulating technical and business risk. You will be expected to drive the deployment/integration of security capabilities into engineering teams within the product domain. You will drive security initiatives such as developing security requirements, threat modelling, strengthening application security, vulnerability reduction, etc., with the engineering teams. Reducing friction is paramount and we are all about fast feedback within existing workflows, not adding another console for a developer to check. Support teams in a collaborative manner in matters of mobile application, web application, cloud and data security, with threat modelling, risk treatment and security advice across all security domains. If you can raise a PR to fix a security issue, do so. Facilitate risk remediation but also challenge decisions and status-quo. Facilitate in assurance activities like penetration testing, purple testing, app assurance. Build quarterly/monthly roadmaps for security activities and plan them. You will need To excel in this position, we expect you to have the following: Solid security experience across common security domains - the technology might have changed but most of the security challenges have not. A thorough understanding of modern application development practices so that security capabilities can be introduced and embedded while minimising developer friction. Excellent interpersonal, facilitation, and leadership skills along with effective communication (both written and verbal) skills. Be able to provide security guidance to engineering teams throughout the product development lifecycle. Be able to develop threat models, attack trees, and embed security by design in product engineering effort. Good understanding of web technologies, REST APIs, micro services, modern application development, and mobile apps. Good understanding of software architecture, dev-sec-ops, and network security. Experience in browser security or mobile app security is desirable. Good understanding of industry standards such as OWASP ASVS, OWASP Top-10, CIS benchmarks. Hands-on experience with complex Azure and AWS architectures with an emphasis on containerised workloads. Command-line/API experience is highly desirable as security automation is a strategic priority. Some coding experience in something is always a plus - Java, HTML, JavaScript. You do not need to "be a developer" but you do need to understand the implications of security on engineering velocity. Knowledge of and experience with PCI-DSS will be desirable. Multiple examples of completed projects in security engineering or closely related areas. Azure or AWS cloud security certifications (preferred). Candidates will ideally show evidence of the above in their CV in order to be considered. Please be advised if you haven't heard from us within 48 hours then unfortunately your application has not been successful on this occasion, we may however keep your details on file for any suitable future vacancies and contact you accordingly. Pontoon is an employment consultancy and operates as an equal opportunities employer. We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention.

About the role: As a Senior Smart Contract Developer / Blockchain Engineer with expertise in enterprise blockchain platforms, you will collaborate with our client's blockchain and cloud infrastructure teams, architects, product owners, and external partners in multi-organisation blockchain networks. You will be responsible for designing, developing, testing, and deploying smart contracts and blockchain solutions for enterprise environments. J ob Details: Location: London Duration: 04/12/2026 Days on site: 2 Roles and Responsibilities: Design, develop, test, and deploy smart contracts for enterprise blockchain platforms (Ethereum, GoQuorum, Hyperledger Besu, Corda). Implement asset tokenization, on-chain/off-chain data models, and blockchain transaction workflows. Develop and integrate RESTful APIs and microservices (Node.js / Java) to interact with smart contracts. Ensure security, performance, and scalability of smart contracts and blockchain applications. Collaborate with architects, product owners, and external partners in multi-organization blockchain networks. Lead or mentor development teams, enforcing coding standards, testing, and best practices. Work closely with cloud infrastructure teams to deploy blockchain solutions using Azure/AWS services. Support POCs, innovation initiatives, and exploration of Layer 2 scaling solutions. Participate in design reviews, audits, and governance processes related to blockchain systems. Other stuff we're potentially looking for: 8+ years of experience in software engineering with strong blockchain focus. Hands-on experience with Solidity smart contract development. Strong understanding of Ethereum-compatible platforms (GoQuorum, Hyperledger Besu). Experience with enterprise blockchain frameworks such as R3 Corda and Ripple. Proficiency in Node.js, TypeScript, and/or Java (Spring Boot). Strong knowledge of microservices architecture and asynchronous processing patterns. Experience designing on-chain vs off-chain data models. Familiarity with REST APIs, event-driven systems, and message queues. Solid understanding of blockchain security concepts (permissions, key management, transaction integrity). What's in it for you? Our client loves to reward their people for doing a great job. This is a contract role until 2/2026. A daily rate, in-scope IR35, of £535 (via a Hays Approved Umbrella Company). This role provides a hybrid working access in London (2 days onsite). Next Steps: Once you've applied, one of our friendly recruitment consultants will give you a call and talk you through the screening process.If your application is successful, you'll be involved in a live virtual interview with one of our client's hiring managers to get to know you better. We look forward to speaking to you! Hays Talent Solutions is a trading division of Hays Specialist Recruitment Limited and acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk

Hybrid - within commuting distance of our Redcar Campus £56,667 + benefits (+ London weighting, if applicable) The National Institute of Teaching (NIoT) has an unswerving commitment to high-quality, evidence-informed teacher education, and is on a mission to improve teacher and leader development across the education system. A key part of that mission is our Teacher Education Dataset (TED), an ambitious data and research initiative focused on building better evidence about teacher development and what makes teaching impactful. By bringing together education, research and digital infrastructure, TED will support new insight into how teachers develop, improve and thrive across their careers. About the role We are seeking a motivated and enthusiastic Senior Software Engineer to join our TED team and play an important role in building and maintaining the technical infrastructure that supports TED. Working at the intersection of software engineering, data and research, the postholder will help develop secure, reliable and scalable systems that enable robust analysis and contribute to high-quality, evidence-informed improvement across the sector. Corporate responsibilities To ensure that the responsibilities of the role are carried out in a way which reflects the mission and the values of the NIoT. To be aware of and observe all policies, procedures, working practices and regulations, and in particular to comply with policies relating to Equal Opportunities, Health and Safety, Confidentiality, Data Protection and Financial Regulations, reporting any concerns to an appropriate person. To comply with all reasonable management requests. Key responsibilities Design, develop, maintain and improve software and technical infrastructure that supports TED and related education research activity. Build secure, scalable and reliable systems that enable robust analysis of education and teacher development data. Apply software engineering and DevOps best practice to deliver high-quality, well-tested and maintainable technical solutions. Contribute to reproducible, transparent and efficient research workflows, pipelines and supporting tools. Work closely with developers, researchers and other colleagues to understand requirements and translate them into effective technical delivery. Contribute to architectural decisions and the ongoing improvement of platform design, developer experience, monitoring and software quality. Support the operation and maintenance of production systems and help troubleshoot issues where required. Produce and maintain clear technical documentation and contribute to wider project communication where appropriate. Contribute to a collaborative team environment, including supporting and mentoring colleagues where appropriate. Essential criteria Proven experience in software engineering, including building and maintaining production systems. Strong coding skills in relevant programming languages and experience of modern software development practices. Experience with version control, code review, testing and continuous integration. Ability to take ownership of complex technical systems, including feature development, maintenance and support. Strong technical judgement and problem-solving ability, including awareness of architectural trade-offs. Ability to work effectively in a multidisciplinary environment and communicate clearly with technical and non-technical audiences. Commitment to quality, security, maintainability and continuous improvement. Interest in applying software engineering to education, data and evidence-informed improvement. Desirable criteria Experience with Python, JavaScript or similar languages. Experience of Linux, Docker, CI/CD and DevOps tooling. Experience of database design, optimisation or data pipeline development. Experience working with sensitive data or secure analytical environments. Experience of research platforms, reproducible analytics or trusted research infrastructure. Experience in education, public sector or data-rich research settings. Experience mentoring others and contributing to team-wide engineering practice. Key benefits Generous Annual Leave - 27 days' holiday a year (plus 8 bank holidays). Flexible Working - we offer flexible start and end working times, with hybrid working in place for all roles. Pension - Entry to the Local Government Pension Scheme. Salary Sacrifice Schemes - we offer salary sacrifice schemes for bikes, cars and tech! Lifestyle Benefits - We offer discounts on gyms, cinema, retail and much more! Parenthood Leave - We offer above the statutory minimum for maternity, adoption and paternity leave. Working Environment - We have a stimulating, supportive and rewarding working environment with a dedicated team of likeminded professionals. Support: Our Employee Assistance Programme (EAP) provides confidential support for employees on personal or work-related matters. Development: We fully support the development of our staff and ensure that you have high level of continuous professional development. We think a wide range of different work and educational experiences could support you to be successful in this role. We encourage applications from all backgrounds, communities and industries, and are committed to employing a team that has diverse skills, experiences and abilities. If you have any queries about this role, please email us at For more information and to apply, please visit our vacancies page. Closing date: 10.00am on Monday, 1 June 2026. We reserve the right to close this vacancy early if we receive a high volume of applications. This post requires a satisfactory enhanced disclosure from the Disclosure and Barring Service (DBS) with a Children's Barred List Check and Occupational Health Check is required as a condition of employment.

Join our team at the Guardian and be a part of a diverse and inclusive global organisation that delivers fearless, investigative journalism, and holds power to account. Our team of award-winning journalists, cutting-edge commercial professionals, and industry-leading digital experts are committed to making a difference and represent a wide range of backgrounds and perspectives. We offer a challenging and exciting environment for career development, with a focus on training, growth and fostering an inclusive culture. We are now looking for a Senior Full Stack Software Developer to join our Apps Experience team on a 12 month fixed contract. You could be building the products that showcase our progressive and independent journalism, crafting the tools that journalists use to write their stories, developing the services that allow those stories to be distributed across the globe, or safeguarding our financial future. About the role You'll mostly be programming in Scala and Typescript, running in AWS, but we use the tool that best fits the problem. You'll be working in a cross-functional team, which is empowered to rapidly iterate and release new features. You won't be coding in isolation - our culture is strongly collaborative, whether pair programming with other developers or working closely with editorial and commercial colleagues. Sometimes deciding what code to write is as hard as writing the code itself. As an engineer you'll be involved in product decisions as well as technical ones. You have a strong interest in growing your skills even further. Much of our code is openly available on GitHub, and some of our projects are widely used throughout the Open Source community. Many of our developers regularly attend and present at conferences. Please visit our Guardian Developers site and the Guardian Developer blog for more information about working in the Digital Development team. About you: As a full stack engineer, you'll be equally willing to dive into a purely functional and composable Scala back-end, or a complex Typescript front-end. You inspire the people you work with, and are inspired by them in return. You contribute to the direction of your team's products You are passionate about spreading engineering best practice beyond your immediate team. You are excited by the opportunity to shape the future of digital journalism. Your interests go beyond just your team's objectives; you are curious about where the organisation is moving as a whole. You have a strong interest in growing your skills. You can make reasoned choices regarding what technologies to use and when to use them. We believe diversity of people, backgrounds, experience and ideas helps us to build better products and achieve more. We welcome applicants who have taken traditional and non-traditional career paths into software development. We actively encourage applications from groups traditionally underrepresented in the UK media Our engineers and developers operate in a hybrid environment working 1 day a week from our offices in Kings Cross and 4 days a week remotely. We strive for transparency in remuneration. The salary for new Senior Developers at the Guardian is £72k. We value and respect all differences (seen and unseen) in all people. We aspire to have inclusive working experiences and an environment that reflects the audience we serve, where our people have equal access to career development opportunities, their voices are heard and can contribute to our future. We actively encourage applications from people of all backgrounds. Many of our staff work flexibly and we will consider all requests for flexible working arrangements. How to apply To apply, please upload your latest CV and a cover letter which outlines why you'd love to take on this role, and why you're a great match for what we're looking for. We appreciate the time taken to prepare each application we receive. We do not use AI-assisted technology to review applications; every application is reviewed by a member of our recruitment team. The closing date for applications is Friday 29th May 2026. All roles at the Guardian are open for everybody to apply. It is important to us that you feel supported and comfortable throughout your recruitment process, in order to perform your best. Please let us know if there are any changes we could make to help your application, this includes providing documents in accessible formats or personalising the process to better support your needs. Please contact Anna Vipers on to discuss further so we can work with you to support you through your application. Our interview process involves two stages: a face to face interview and a pairing test. We may offer a remote pairing test for candidates who would have to travel a long distance to our office in London, however you will have to arrange to come to our office for the face to face interview. Benefits at the Guardian You'll have 30 days of annual leave per year (plus bank holidays) with the option to purchase an additional 5 days. Our pension scheme is generous; if you contribute 5% then we will contribute 8-12% (depending on your age). We believe in giving back, which is why employees are given 2 volunteering days annually and the option of payroll giving. Season ticket loans are also available. You are entitled to private healthcare, life cover, income protection, and eye tests. You can also opt in to dental insurance. We have enhanced maternity, paternity, adoption and shared parental leave policies in place. We also support our employees by offering an IVF, menopause, baby loss, and trans equality policy. Culture and wellbeing We want everyone to feel like they belong at the Guardian and we champion diversity of thought. Our various employee forums provide a platform to use their voice to foster an inclusive workplace. We became the first major media organisation to achieve B Corp status. We offer tools to help you prioritise your wellbeing including access to our employee benefits platform which provides tailored support for health and wellbeing. In addition, we also offer free yoga and pilates classes. These run alongside our corporate gym membership and cycle to work scheme. Our canteen has views overlooking the Regents Canal and caters for breakfast, lunch and dinner. Learning and development We encourage personal and professional growth. Employees have access to a broad range of tools and solutions, and we are happy to support the pursuit of professional qualifications through vocational courses and apprenticeships.

Senior Python Software Engineer (Senior Architecture Programmer Developer Python Java Software Engineer Data Enterprise Engineering Developer Programmer AWS Python Athena Glue Airflow Ignite JavaScript Agile Pandas NumPy SciPy Spark Dremio Snowflake Apache Iceburg Iceberg Arrow DBT gRPC protobuf TypeScript Finance Trading Front Office Investment Banking Asset Manager Financial Services FX Fixed Income Equities Commodities Derivatives Hedge Fund) required by my asset management client in London. You MUST have the following: Advanced ability as a Senior Python Software Engineer/Technical Lead/Solutions Architect/Principal Engineer Good design and architecture ability Java Three or more of the following: Iceberg Dremio DBT Arrow Snowflake Glue Athena Airflow Agile The following is DESIRABLE, not essential: Trading, Front Office finance Spark Buy-side asset management (hedge fund, asset manager, investment management) Role: Senior Python Software Engineer (Senior Architecture Programmer Developer Python Java Software Engineer Data Enterprise Engineering Developer Programmer AWS Python Athena Glue Airflow Ignite JavaScript Agile Pandas NumPy SciPy Spark Dremio Snowflake Apache Iceburg Iceberg Arrow DBT gRPC protobuf TypeScript Finance Trading Front Office Investment Banking Asset Manager Financial Services FX Fixed Income Equities Commodities Derivatives Hedge Fund Snowflake) required by my asset management client in London. You will join a relatively new department that is responsible for the data used across the Front Office. The data is sourced from a variety of external vendors and internal departments and held in an AWS data lake, although this is being migrated to a data mesh architecture. They are working heavily with Python, Java and AWS. If you have any experience in Iceberg, Dremio, DBT, Arrow, Spark, Snowflake, Glue, Athena, Airflow or related tools, this would also be very advantageous. You will join a team of 5 that are responsible for pricing data for the Front Office. This is a senior role in the team and will demand a strong ability in design and architecture. If you come in at the right level, you could be the deputy for the team manager. They have a very flexible hybrid working set up. Salary: £90-120k + 15% Bonus + 10% Pension

Senior Python Software Engineer (Senior Architecture Programmer Developer Python Java Software Engineer Data Enterprise Engineering Developer Programmer AWS Python Athena Glue Airflow Ignite JavaScript Agile Pandas NumPy SciPy Spark Dremio Snowflake Apache Iceburg Iceberg Arrow DBT gRPC protobuf TypeScript Finance Trading Front Office Investment Banking Asset Manager Financial Services FX Fixed Income Equities Commodities Derivatives Hedge Fund) required by my asset management client in London. You MUST have the following: Advanced ability as a Senior Python Software Engineer/Technical Lead/Solutions Architect/Principal Engineer Good design and architecture ability Java Three or more of the following: Iceberg Dremio DBT Arrow Snowflake Glue Athena Airflow Agile The following is DESIRABLE, not essential: Trading, Front Office finance Spark Buy-side asset management (hedge fund, asset manager, investment management) Role: Senior Python Software Engineer (Senior Architecture Programmer Developer Python Java Software Engineer Data Enterprise Engineering Developer Programmer AWS Python Athena Glue Airflow Ignite JavaScript Agile Pandas NumPy SciPy Spark Dremio Snowflake Apache Iceburg Iceberg Arrow DBT gRPC protobuf TypeScript Finance Trading Front Office Investment Banking Asset Manager Financial Services FX Fixed Income Equities Commodities Derivatives Hedge Fund Snowflake) required by my asset management client in London. You will join a relatively new department that is responsible for the data used across the Front Office. The data is sourced from a variety of external vendors and internal departments and held in an AWS data lake, although this is being migrated to a data mesh architecture. They are working heavily with Python, Java and AWS. If you have any experience in Iceberg, Dremio, DBT, Arrow, Spark, Snowflake, Glue, Athena, Airflow or related tools, this would also be very advantageous. You will join a team of 5 that are responsible for pricing data for the Front Office. This is a senior role in the team and will demand a strong ability in design and architecture. If you come in at the right level, you could be the deputy for the team manager. They have a very flexible hybrid working set up. Salary: £120-150k + 15% Bonus + 10% Pension

Senior Java Software Engineer (Senior Architecture Programmer Developer Java Python Software Engineer Data Enterprise Engineering Developer Programmer AWS Python Athena Glue Airflow Ignite JavaScript Agile Pandas NumPy SciPy Spark Dremio Snowflake Apache Iceburg Iceberg Arrow DBT gRPC protobuf TypeScript Finance Trading Front Office Investment Banking Asset Manager Financial Services FX Fixed Income Equities Commodities Derivatives Hedge Fund) required by my asset management client in London. You MUST have the following: Advanced ability as a Senior Java Software Engineer/Technical Lead/Solutions Architect/Principal Engineer Good design and architecture ability Python Three or more of the following: Iceberg Dremio DBT Arrow Snowflake Glue Athena Airflow Agile The following is DESIRABLE, not essential: Trading, Front Office finance Spark Buy-side asset management (hedge fund, asset manager, investment management) Role: Senior Java Software Engineer (Senior Architecture Programmer Developer Java Python Software Engineer Data Enterprise Engineering Developer Programmer AWS Python Athena Glue Airflow Ignite JavaScript Agile Pandas NumPy SciPy Spark Dremio Snowflake Apache Iceburg Iceberg Arrow DBT gRPC protobuf TypeScript Finance Trading Front Office Investment Banking Asset Manager Financial Services FX Fixed Income Equities Commodities Derivatives Hedge Fund Snowflake) required by my asset management client in London. You will join a relatively new department that is responsible for the data used across the Front Office. The data is sourced from a variety of external vendors and internal departments and held in an AWS data lake, although this is being migrated to a data mesh architecture. They are working heavily with Java, Python and AWS. If you have any experience in Iceberg, Dremio, DBT, Arrow, Spark, Snowflake, Glue, Athena, Airflow or related tools, this would also be very advantageous. You will join a team of 5 that are responsible for pricing data for the Front Office. This is a senior role in the team and will demand a strong ability in design and architecture. If you come in at the right level, you could be the deputy for the team manager. They have a very flexible hybrid working set up. Salary: £90-120k + 15% Bonus + 10% Pension

Senior Java Software Engineer (Senior Architecture Programmer Developer Java Python Software Engineer Data Enterprise Engineering Developer Programmer AWS Python Athena Glue Airflow Ignite JavaScript Agile Pandas NumPy SciPy Spark Dremio Snowflake Apache Iceburg Iceberg Arrow DBT gRPC protobuf TypeScript Finance Trading Front Office Investment Banking Asset Manager Financial Services FX Fixed Income Equities Commodities Derivatives Hedge Fund) required by my asset management client in London. You MUST have the following: Advanced ability as a Senior Java Software Engineer/Technical Lead/Solutions Architect/Principal Engineer Good design and architecture ability Python Three or more of the following: Iceberg Dremio DBT Arrow Snowflake Glue Athena Airflow Agile The following is DESIRABLE, not essential: Trading, Front Office finance Spark Buy-side asset management (hedge fund, asset manager, investment management) Role: Senior Java Software Engineer (Senior Architecture Programmer Developer Java Python Software Engineer Data Enterprise Engineering Developer Programmer AWS Python Athena Glue Airflow Ignite JavaScript Agile Pandas NumPy SciPy Spark Dremio Snowflake Apache Iceburg Iceberg Arrow DBT gRPC protobuf TypeScript Finance Trading Front Office Investment Banking Asset Manager Financial Services FX Fixed Income Equities Commodities Derivatives Hedge Fund Snowflake) required by my asset management client in London. You will join a relatively new department that is responsible for the data used across the Front Office. The data is sourced from a variety of external vendors and internal departments and held in an AWS data lake, although this is being migrated to a data mesh architecture. They are working heavily with Java, Python and AWS. If you have any experience in Iceberg, Dremio, DBT, Arrow, Spark, Snowflake, Glue, Athena, Airflow or related tools, this would also be very advantageous. You will join a team of 5 that are responsible for pricing data for the Front Office. This is a senior role in the team and will demand a strong ability in design and architecture. If you come in at the right level, you could be the deputy for the team manager. They have a very flexible hybrid working set up. Salary: £120-150k + 15% Bonus + 10% Pension

Senior Software Engineer / Developer (Data) London / WFH to £115k Global-leading FinTech is seeking a Senior Software Engineer to take ownership of a new team responsible for data focussed strategic enhancements on their core platform. The organisation is a pioneer in the field of cross-asset securities and derivatives post-trade processing technology and have created ground-breaking, adaptable software that produces secure and scalable solutions for peak operational efficiency and optimum business performance for their clients. This is a great opportunity to accelerate your career alongside established business and technology leaders and deepen your finance experience. As a Senior Software Engineer, you'll work on strategic initiatives to develop integration and data migration strategies and tools to allow highly automated migration or integration between the PTP (Post Trade Processing) platform and legacy internal and external systems. You'll be working on Greenfield systems, using a range of technology, you will be granted a great deal of autonomy across the full development lifecycle, influencing key technical decisions and will have the opportunity to grow the team and move into a leadership role if desired. Location / WFH: You'll join colleagues in the London office three days a week with flexibility to work from home the other two days. About you: You're a data centric, Senior Software Engineer with a strong knowledge of modern software engineering best practices You have strong development experience with C#, C++ or Python You have advanced SQL database knowledge (they use Oracle), experience with data transformation technologies such as Databricks or Snowflake and data streaming technologies such as Kafka You have a good understanding of financial markets and the trade lifecycle You're keen to take ownership and enjoy working proactively with minimal supervision You have excellent collaboration and stakeholder management skills You're degree educated in a STEM discipline What's in it for you: As a Senior Software Engineer / Developer (Data) you will receive a competitive package: Salary to £115k Pension (to 9% contribution) Healthcare Volunteer / charity days Hybrid working Career development and training Apply now to find out more about this Senior Software Engineer / Developer (Data) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Senior Python Engineer - Commodities Trading I am recruiting for a highly successful hedge fund who is looking to expand their commodities trading desk following a huge increase in that area of their business in the past 18 months. Exciting opportunity for a Senior Software Engineer to work closely with traders and other developers on commodities trading desk in Central London - hybrid working 2 days a week in lovely office. The successful Senior Python Developer will have exceptionally strong technical acumen, and have knowledge and experience of front-to-back trade life-cycle. £950 - 1050 per day Very long term contract potential with multiple extensions for a suitable Python Engineer with the following skills: - Strong Python engineering skills - ESSENTIAL - Front-Back office Trade Life-cycle - ESSENTIAL Apply now for more information and a confidential discussion about the role and company Carbon60, Lorien & SRG - The Impellam Group STEM Portfolio are acting as an Employment Business in relation to this vacancy.

Data Software Engineer / Developer (Python Databricks FastAPI) London to £90k Are you a data centric Software Engineer with strong Python and SQL skills? You could be progressing your career in a senior, hands-on role at a fast growing, global Insurance Underwriting technology provider that focusses on developing a complex SaaS calculation platform for rapidly growing Cybersecurity insurance markets. As a Data Software Engineer you will design and develop data centric backend services for the core platform with a focus on Python coding and building FastAPIs within an Azure environment with Databricks. You'll participate in the design and implementation of advanced mechanisms for data ingestion, transformation, mass parallel orchestration of network IO and will model data for a variety of purposes. You'll also collaborate with the Infrastructure team to maintain Infrastructure as Code and develop new features on the engineering platform. Location / WFH: There's a hybrid work from home model with three days a week in the high spec London, City office with rooftop bar. About you: You have strong Python software engineering skills You have a good understanding of working with data at scale and strong SQL skills (PostgreSQL, SQL Server and Databricks) You have experience of building FastAPIs You have a thorough knowledge of Computer Science fundamentals including Data Structures, Design Patterns, OOP You're collaborative and pragmatic with great communication skills What's in it for you: As a Data Software Engineer you will receive a competitive package: Salary to £90k + bonus 25 days holiday Private Medical Insurance (including dental and optical cashback) Life Insurance, Income Protection Pension Subsidised gym membership X4 paid volunteering days per year Season ticket loan Employee Assistance Programme Impactful role with great career progression Apply now to find out more about this Data Software Engineer / Developer (Python Databricks FastAPI) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Senior Full Stack Developer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS Why? scaling FinTech, revolutionising the industry Location : Hybrid - 1-2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products to consumers. The organisation is committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Senior Full Stack Developer - Responsibilities Design, develop, and maintain advanced applications. Collaborate with cross-functional teams to define, design, and ship new features. Guide and develop the skills of junior engineers. Optimize components for maximum performance across a vast array of web- capable devices and browsers. Maintain code and write automated tests to ensure the product is of the highest quality. Lead the development team in implementing methodologies that enhance project quality and speed. Troubleshoot and debug to optimize performance. Provide code reviews, feedback, and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols Senior Full Stack Developer - Experience Required Proven experience as a Senior Full Stack Developer or similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for serverless backend services. Proficiency in React with Next.js for frontend development. Proficiency in TypeScript and experience with infrastructure as code using Terraform. Understanding of RESTful APIs and web application architecture. Experience in a start-up environment. Bachelor's or Master's degree in Computer Science, Engineering, or a related field, or equivalent experience. Familiarity with RESTful APIs and mobile libraries for networking. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Experience with automated testing suites, like Jest or Mocha. Excellent problem-solving skills and the ability to think algorithmically. Experience with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing, and deployment (App Store, Google Play). Understanding of secure coding practices. Excellent written and verbal communication skills For more information, contact Katie at Matched Group. Senior Full Stack Developer / Senior Full Stack Engineer / Full Stack Developer / Full Stack Engineer / Software Developer / Software Engineer / Senior Developer / Senior Engineer / Senior Software Developer / Senior Software Engineer