122 jobs found

Senior .Net Developer, C# / VB.Net, API, SQL, NW London to £85K A Back End Developer is required to join this established financial software house based in North London. They work with some of the leading brands in retail and media, offering financial management systems developed in house by their small dynamic team of tech professionals. Due to growth a Senior .Net Back End Developer is required with expertise in Visual Basic .NET, C#, SQL Server, and SAP Business One integration. The ideal candidate should have strong skills in RESTful API development, database optimization, and Azure DevOps pipeline management. Knowledge of API security, CI/CD automation, and Swagger documentation is recommended. Responsibilities API Development : Build and maintain RESTful APIs in VB.NET and C#, integrating with SQL Server and SAP Business One backend tables Database Management : Write optimized SQL queries, stored procedures, and indexing strategies to efficiently handle large datasets Performance Optimization : Monitor and enhance API performance, database query execution, and application scalability Documentation : Maintain clear and detailed documentation for APIs, database structures and all the back-end infrastructure Collaboration : Work closely with SAP consultants, frontend developers, and DevOps engineers to ensure seamless system integration Code Quality : Conduct code reviews, debugging, and error handling to maintain system reliability Best Practices : Stay up to date with API design standards, database performance tuning, and cloud integration trends What You ll Need 5+ years of backend development experience Strong .NET and C# skills for API development and business logic implementation Expertise in SQL Server, including query optimization, indexing, and stored procedures Proficiency in RESTful API development, with a strong understanding of error handling, logging, and monitoring Good understanding of Windows Forms Experience with Git, version control workflows, and agile development methodologies What Would Be Good to Have Experience setting up and managing Azure DevOps pipelines for CI/CD automation Good familiarity with Swagger for API documentation SAP Business One or similar accounting system experience Hands-on experience with SAP backend table integration via APIs Knowledge of Azure services for API hosting and cloud infrastructure management Knowledge of web frontend technologies This role is fully office based

Role Overview We are seeking a Senior Developer with strong expertise in Node.js, TypeScript, PostgreSQL, and Google Cloud Platform (GCP) to build and support scalable cloud-native applications for enterprise environments. Key Responsibilities Design and develop scalable backend services using Node.js and TypeScript. Build RESTful APIs and microservices architectures. Develop and optimize PostgreSQL databases and queries. Deploy and manage applications on Google Cloud Platform (GCP). Collaborate with architects, product owners, QA, and DevOps teams. Perform code reviews and mentor junior developers. Drive performance, security, reliability, and operational excellence. Support CI/CD pipelines and automated deployments. Required Skills Strong hands-on experience with Node.js and TypeScript. Expertise in PostgreSQL database design, performance tuning, and optimization. Experience with GCP services such as Cloud Run, GKE, Cloud Functions, Pub/Sub, Cloud Storage, and IAM. Knowledge of Docker, Kubernetes, and CI/CD practices. Experience designing and implementing REST APIs and microservices. Strong understanding of Agile delivery methodologies.

We're supporting a high-profile UK Government digital programme and are looking for Senior Python Developers and Technical Leads with strong Python & Django expertise to join a multidisciplinary agile team delivering secure, user-focused digital services. The Role You'll play a key role in designing, developing and supporting scalable backend services used within a secure government environment. Technical Leads will also provide technical guidance, mentor engineers and help shape architecture and engineering best practices while remaining hands-on. What You'll Be Doing Develop secure, scalable applications using Python & Django Design and build RESTful APIs Contribute to system architecture and technical design Work within Agile, multidisciplinary delivery teams Write clean, well-tested code using TDD principles Support live services and drive continuous improvement (Technical Leads) Mentor developers and provide technical leadership across squads Essential Skills Strong commercial experience with Python Excellent hands-on experience with Django REST API development System design and software architecture experience Agile delivery experience Test-Driven Development (TDD) Cloud platform experience (AWS, Azure or GCP) Excellent communication and stakeholder engagement skills Desirable Government Digital Service (GDS) experience UK Government or Public Sector projects Experience working in secure or regulated environments Requirements Active SC Clearance is highly advantageous. Able to work 40% onsite (approximately 2 days per week) in London, Manchester, Birmingham or Cardiff Up to £650/day (Senior Developer) Up to £720/day (Technical Lead) 12-Month Contract Inside IR35

Mid to Snr Full Stack Developer - Oxford (Hybrid) - 60k to 70k Avanti Recruitment is working with an innovative AI-powered creative technology company with offices in Oxford and London. We are hiring a Full Stack Developer who can work as a Product Engineer, owning features end to end. You'll be building products that use the latest generative AI technologies to transform how stories and video content are created. This includes integrating LLMs, image generation and video generation technologies into real-world production workflows. We're looking for a strong software engineer who enjoys building and shipping great products, with AI providing an interesting technical environment to work within. What we're looking for; 5+ years' commercial software development experience 3+ years' React experience Strong backend development with Node.js and/or Python Experience owning features from requirements through to production Good DevOps and CI/CD knowledge Docker experience Commercial cloud experience with AWS, Azure or GCP Strong automated testing experience, including Jest/Mocha and ideally Cypress, BrowserStack or similar Excellent JavaScript fundamentals Strong communication and problem-solving skills Experience with TypeScript, SaaS/startups, generative AI APIs, creative technology, Unix/Linux or Bash are all very useful. You'll join a small, highly technical team building creative AI products and take genuine ownership across the stack. You'll work on everything from React interfaces and backend services through to third-party AI integrations, deployment and production. Salary: 60,000 to 70,000 Location: Oxford, hybrid with approximately 1 day per week in the office If you're a strong full-stack engineer who wants to work on genuinely interesting applications, apply now!

Backend Developer (Azure) 3 Month Remote Contract Outside IR35 Rate: £420 £475 per day We re looking for an experienced Azure Backend Developer to join a digital healthcare platform team on an initial 3-month contract, outside IR35. This is a hands-on role working on a mature Azure-based backend platform, with responsibility across the full software lifecycle - from design and development through to testing, deployment and production support. You ll be working with C#, .NET, Azure Functions, Azure SQL, Azure Service Bus, Azure API Management and Azure DevOps, contributing to a platform that supports connected patient services. This role is particularly suited to a developer who can hit the ground running, work independently and own technical delivery end-to-end without requiring day-to-day technical supervision. What You ll Be Doing Develop and deliver backend services using C#, .NET 6+ and Azure Functions . Build and maintain data access, orchestration and notification services using clean architecture and dependency injection. Develop and maintain Azure SQL stored procedures, schemas and data access patterns within a mature production database. Work on event-driven integrations using Azure Service Bus , including message ingestion, transformation and error handling. Design and consume REST APIs through Azure API Management . Write meaningful automated unit and integration tests as part of the development lifecycle. Own CI/CD pipelines and deployment automation using Azure DevOps . Monitor production services using Application Insights and Azure Monitor , diagnosing and resolving issues proactively. Participate in incident response and root-cause analysis when required. Identify technical debt and deliver targeted improvements within sprint capacity. Work closely with Product Owners to clarify requirements and ensure acceptance criteria are technically deliverable. Contribute to Agile ceremonies including estimation, planning, reviews and retrospectives. What We re Looking For You ll need strong commercial experience across: Strong proficiency in C#, .NET 6+, with solid understanding of dependency injection, SOLID principles, and clean architecture as applied to real production codebases. Azure Functions consumption model; understanding of triggers, bindings, and fan-out/fan-in patterns. Azure API Management API design, policy configuration, and secure consumer patterns. Azure Service Bus message-driven processing, competing consumer patterns, error handling, and retry/dead-letter behaviour. Azure SQL engineering stored procedures, T-SQL, schema design, query performance, and deadlock diagnosis at the level required by a mature production database. Service Bus integration message-driven processing patterns, error handling, and retry behaviour. Azure DevOps CI/CD pipeline authoring, automated testing integration, and deployment management. Production operational experience monitoring via App Insights, incident diagnosis, and root cause analysis. Excellent written communication skills PR descriptions, PBI commentary, ADO notes, and incident updates must be unambiguous and complete. Proven ability to work fully independently evidenced track record of owning a piece of work end-to-end (design, build, test, deploy, operate) without day-to-day technical supervision. Candidates must be able to give concrete examples at interview; assertion of independence without evidence will not be accepted. Available and responsive during UK core hours (9am 5pm GMT/BST) this is not negotiable for this role. Disciplined approach to testing automated tests are a deliverable, not optional. Experienced in Agile Scrum delivery full sprint participation, not just task execution. Automated testing Production monitoring and incident diagnosis Agile/Scrum delivery Just as importantly, you ll be someone who can take ownership of work from design through to production. You should be comfortable identifying gaps in requirements, asking the right questions, making technical decisions and delivering without needing constant direction. Excellent written and verbal communication is essential, particularly when documenting progress, risks, blockers and technical decisions for both technical and non-technical stakeholders. Desirable Experience Experience with any of the following would be advantageous: Terraform infrastructure as code for Azure resources; state management, modules, and pipeline integration. Azure Entra ID B2C / Auth0 authentication flows, token validation, and secure API integration. D365/FinOps integration OData API, entity model, and data export patterns. Microsoft Dynamics 365 Customer Engagement (CE) familiarity with CE configuration, customisation, or development. A significant portion of the broader programme work will be delivered in CE by a separate team; the ability to understand CE data structures, entities, and integration points will be a practical advantage in this role. Logic Apps / Power Automate integration workflow development and maintenance. Healthcare domain experience understanding of clinical workflows and patient data sensitivity. AI-assisted development tooling (e.g. GitHub Copilot). C# .NET 6+ Azure Functions Azure SQL Azure Service Bus Azure API Management Azure DevOps Terraform Docker Application Insights Entra ID B2C / Auth0 D365

Backend Developer (Azure) 3 Month Remote Contract Outside IR35 Rate: £420 £475 per day We re looking for an experienced Azure Backend Developer to join a digital healthcare platform team on an initial 3-month contract, outside IR35. This is a hands-on role working on a mature Azure-based backend platform, with responsibility across the full software lifecycle - from design and development through to testing, deployment and production support. You ll be working with C#, .NET, Azure Functions, Azure SQL, Azure Service Bus, Azure API Management and Azure DevOps, contributing to a platform that supports connected patient services. This role is particularly suited to a developer who can hit the ground running, work independently and own technical delivery end-to-end without requiring day-to-day technical supervision. What You ll Be Doing Develop and deliver backend services using C#, .NET 6+ and Azure Functions . Build and maintain data access, orchestration and notification services using clean architecture and dependency injection. Develop and maintain Azure SQL stored procedures, schemas and data access patterns within a mature production database. Work on event-driven integrations using Azure Service Bus , including message ingestion, transformation and error handling. Design and consume REST APIs through Azure API Management . Write meaningful automated unit and integration tests as part of the development lifecycle. Own CI/CD pipelines and deployment automation using Azure DevOps . Monitor production services using Application Insights and Azure Monitor , diagnosing and resolving issues proactively. Participate in incident response and root-cause analysis when required. Identify technical debt and deliver targeted improvements within sprint capacity. Work closely with Product Owners to clarify requirements and ensure acceptance criteria are technically deliverable. Contribute to Agile ceremonies including estimation, planning, reviews and retrospectives. What We re Looking For You ll need strong commercial experience across: Strong proficiency in C#, .NET 6+, with solid understanding of dependency injection, SOLID principles, and clean architecture as applied to real production codebases. Azure Functions consumption model; understanding of triggers, bindings, and fan-out/fan-in patterns. Azure API Management API design, policy configuration, and secure consumer patterns. Azure Service Bus message-driven processing, competing consumer patterns, error handling, and retry/dead-letter behaviour. Azure SQL engineering stored procedures, T-SQL, schema design, query performance, and deadlock diagnosis at the level required by a mature production database. Service Bus integration message-driven processing patterns, error handling, and retry behaviour. Azure DevOps CI/CD pipeline authoring, automated testing integration, and deployment management. Production operational experience monitoring via App Insights, incident diagnosis, and root cause analysis. Excellent written communication skills PR descriptions, PBI commentary, ADO notes, and incident updates must be unambiguous and complete. Proven ability to work fully independently evidenced track record of owning a piece of work end-to-end (design, build, test, deploy, operate) without day-to-day technical supervision. Candidates must be able to give concrete examples at interview; assertion of independence without evidence will not be accepted. Available and responsive during UK core hours (9am 5pm GMT/BST) this is not negotiable for this role. Disciplined approach to testing automated tests are a deliverable, not optional. Experienced in Agile Scrum delivery full sprint participation, not just task execution. Automated testing Production monitoring and incident diagnosis Agile/Scrum delivery Just as importantly, you ll be someone who can take ownership of work from design through to production. You should be comfortable identifying gaps in requirements, asking the right questions, making technical decisions and delivering without needing constant direction. Excellent written and verbal communication is essential, particularly when documenting progress, risks, blockers and technical decisions for both technical and non-technical stakeholders. Desirable Experience Experience with any of the following would be advantageous: Terraform infrastructure as code for Azure resources; state management, modules, and pipeline integration. Azure Entra ID B2C / Auth0 authentication flows, token validation, and secure API integration. D365/FinOps integration OData API, entity model, and data export patterns. Microsoft Dynamics 365 Customer Engagement (CE) familiarity with CE configuration, customisation, or development. A significant portion of the broader programme work will be delivered in CE by a separate team; the ability to understand CE data structures, entities, and integration points will be a practical advantage in this role. Logic Apps / Power Automate integration workflow development and maintenance. Healthcare domain experience understanding of clinical workflows and patient data sensitivity. AI-assisted development tooling (e.g. GitHub Copilot). C# .NET 6+ Azure Functions Azure SQL Azure Service Bus Azure API Management Azure DevOps Terraform Docker Application Insights Entra ID B2C / Auth0 D365

Digital Full Stack Engineer to join a growing technology team responsible for developing and supporting modern digital products and services. This is a hands-on software engineering role where you will work across both front-end and back-end technologies, delivering high-quality solutions that provide real value to customers and the wider business. You will be involved throughout the software development lifecycle, from design and development through to testing, deployment and operational support. Working within an Agile environment, you will collaborate closely with Product Owners, UX Designers, QA Engineers, Architects and Operations teams to deliver scalable, secure and reliable applications. The role would suit an engineer who enjoys working across the full technology stack and is passionate about building well-designed software while continuously developing their technical expertise. Key Responsibilities Software Development Design, develop and maintain applications using React, TypeScript, .NET and C# . Deliver high-quality front-end and back-end solutions across a range of digital products and services. Build and maintain RESTful APIs and backend services. Develop clean, maintainable and secure code that aligns with established engineering standards and best practices. Support the delivery of new features and enhancements throughout the software development lifecycle. Contribute to technical discussions and provide input into solution design. Testing & Quality Assurance Create and maintain automated unit and integration tests. Contribute to API and user interface test automation frameworks. Help ensure software meets quality, security, accessibility and performance standards. Participate in code reviews and support continuous improvements in code quality. Assist in identifying and resolving defects throughout development and testing phases. DevOps & Continuous Delivery Contribute to the maintenance and improvement of CI/CD pipelines. Support automated build, testing and deployment processes. Work within Azure-based environments and support cloud-first development practices. Assist in maintaining development standards that improve software reliability and deployment efficiency. Promote a culture of automation and continuous improvement. Production Support & Reliability Support the ongoing operation and maintenance of digital applications and services. Monitor application performance and assist with troubleshooting technical issues. Use logs, dashboards and monitoring tools to investigate incidents and identify root causes. Contribute to observability through appropriate logging, metrics and monitoring practices. Participate in an agreed out-of-hours support rota where required. Support incident resolution and help implement improvements to prevent recurring issues. Agile Delivery & Collaboration Work as part of a cross-functional Agile delivery team. Collaborate with Product Managers, UX Designers, Architects, QA Engineers and Operations teams. Participate in sprint planning, stand-ups, retrospectives and other Agile ceremonies. Contribute to technical documentation, knowledge sharing and team learning activities. Support engineering communities, chapters and guilds that promote best practice across the organisation. Continuous Improvement Identify opportunities to improve systems, processes and development practices. Contribute to reducing technical debt and improving application maintainability. Stay up to date with modern engineering practices and emerging technologies. Support the adoption of development standards, coding guidelines and engineering best practices. Required Skills & Experience Essential Technical Skills Commercial experience developing applications using React and TypeScript . Experience building applications using .NET and C# . Experience designing, developing and integrating REST APIs. Solid understanding of full stack software development principles. Experience using Git, Bitbucket or similar version control systems. Understanding of CI/CD pipelines and modern DevOps practices. Experience working with cloud technologies, ideally Microsoft Azure. Experience writing automated unit and integration tests. Knowledge of software design principles and secure coding practices. Experience working within Agile software development environments. Desirable Skills Experience with UI or end-to-end testing tools such as Playwright, Cypress or Selenium. Exposure to contract testing and API testing frameworks. Knowledge of observability and monitoring tools. Experience with Azure DevOps. Understanding of microservices and cloud-native development approaches. Experience working within Financial Services or other regulated environments. Familiarity with Jira or similar work management tools. Candidate Profile The ideal candidate will have approximately 3-6 years of commercial software development experience and a strong background in full stack engineering. You will be confident working across both front-end and back-end technologies and enjoy delivering high-quality software as part of a collaborative team environment. You will have a proactive approach to problem-solving, be eager to learn and continuously improve, and be committed to delivering reliable and maintainable technical solutions. This role is ideal for a developer looking to further develop their cloud, DevOps and full stack engineering skills while contributing to the delivery of innovative digital products. Key Technologies React TypeScript .NET C# REST APIs Azure Azure DevOps Git CI/CD Automated Testing Agile Delivery Cloud Technologies DevOps Practices Monitoring & Observability To find out more about Computer Futures please visit (url removed) Computer Futures, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy Registered office 8 Bishopsgate, London, EC2N 4BQ, United Kingdom Partnership Number OC(phone number removed) England and Wales

Backend Developer, Azure Mainly remote, occasional travel to Derby Up to 425 per day Outside IR35 Initial 3-month contract We're supporting a business that needs an experienced Backend Developer to join a mature Azure platform team and contribute quickly across live sprint delivery. This is not a role for someone who needs heavy direction or a detailed brief handed to them for every piece of work. The team needs someone who can pick up requirements, ask the right questions, own their work end-to-end and deliver production-quality code from early in the assignment. The environment is Microsoft and Azure-led, with a backend platform built around C#/.NET, Azure Functions, Azure API Management, Azure SQL, Service Bus and Azure DevOps. What you'll be doing You'll be responsible for building, enhancing and supporting backend services across a live digital platform. This will include feature delivery, integration work, production support, testing, DevOps activity and working closely with product and technical stakeholders. You'll be expected to contribute across the full delivery lifecycle, from understanding requirements and shaping the technical approach through to build, test, deployment and operational support. Key skills we're looking for Strong C# / .NET backend development experience Azure Functions experience Azure API Management Azure Service Bus Azure SQL, including stored procedures, schema changes and performance awareness Azure DevOps, CI/CD and deployment pipelines Experience working in Agile Scrum environments Strong written and verbal communication Ability to work independently and own delivery without close supervision Useful additional experience Terraform, Bicep or ARM templates Application Insights / Azure Monitor Auth0 or Entra ID B2C D365 integration experience Logic Apps or Power Automate Secure API development and OAuth2 / OIDC flows Why apply? This is a good opportunity for a contractor who enjoys proper hands-on engineering, mature Azure environments and roles where they can make an immediate impact. The client needs someone who can contribute quickly, communicate clearly and take ownership from the first sprint. If you receive suspicious outreach claiming to be from us, please contact us via the ManpowerGroup website.

Senior .Net Developer My customer is looking for a Senior .Net Developer to join them on a 9 Month contract basis, Outside IR35 & working fully remote. AI assisted developement will need to be at the forefront of how you develop, operate, and process your workload and coding tasks. As the succesfull Senior .Net Developer you'll be joining a greenfield build of a large scale platform. This isn't maintaining legacy code, it's building something new from scratch using modern patterns and AI-assisted development. The platform already has a working prototype but you'll be taking it into production. You'll be working across the full stack of backend services: building APIs, designing data models, implementing business logic engines, and making sure the platform scales. You'll need to be comfortable owning significant pieces of work with minimal hand-holding and making good technical decisions independently. Must Have Strong .NET / C# this is your primary skill and it needs to be excellent Demonstrable experience with AI-assisted development (Copilot, Claude, Cursor, or similar) Experience building and designing RESTful APIs SQL Server comfortable with schema design and query performance Strongly Preferred Entity Framework NoSQL (CosmosDB, MongoDB, or similar) Redis Authentication and authorisation implementation (OAuth, OIDC, RBAC) Containerisation (Docker / Kubernetes) About the Person The tech stack matters less than the person. We need someone who's sharp, pragmatic, and gets things done without needing to be managed. They should be comfortable in a small team where there's nowhere to hide and the pace is high. Someone who takes pride in building things properly but doesn't over-engineer. If they've worked in financial or regulatory systems that's a bonus but it's not required we'll teach the domain. Senior .Net Developer

Principal Backend Developer (C# / .NET) The Opportunity This is a career-defining role for a Principal Backend Developer who wants to be at the forefront of a growing SaaS organisation. You'll be joining a company that's scaling rapidly, building innovative products that make a real difference to its customers. This role offers the chance to take ownership of backend systems, shape best practice, and mentor the next generation of engineers. The Role You'll provide technical leadership across backend development, ensuring systems are robust, scalable, and future-proof. Working closely with product owners, testers, and front-end teams, you'll bring engineering excellence into every decision. With a stack centred on C#, .NET, cloud services, and automation frameworks, you'll be both hands-on in coding and guiding others to deliver their best work. Day-to-day responsibilities Architect and build scalable backend services in C# / .NET Drive adoption of clean coding practices, design patterns, and SOLID principles Mentor engineers, fostering a culture of growth, learning, and high performance Collaborate with product owners to refine requirements and translate them into technical solutions Integrate automation testing (Playwright) and CI/CD pipelines to ensure code quality Lead technical discussions, setting direction on tools, frameworks, and approaches Troubleshoot and resolve complex technical challenges across backend services Optimise system performance and ensure resilience across platforms Review code and guide engineering standards across the team Contribute to product strategy by aligning technical roadmaps with business goals What you bring to the team Strong experience developing backend systems with C# and .NET Deep knowledge of cloud environments (Azure preferred) Experience in designing APIs and microservices at scale Solid understanding of automation testing tools (Playwright desirable) Leadership experience - mentoring, coaching, and guiding engineering teams Strong problem-solving skills with an eye for performance optimisation Enthusiasm for delivering quality solutions in a SaaS environment Send your CV now 50249MSR INDMANS The Portfolio Group are acting on behalf of our client in recruiting for this position.

Senior Full-Stack Contractor (Platform & Data Contracts) Job Summary Join a high-impact engineering team during an exciting discovery MVP phase. This team builds platform tools to manage data contracts at the code level, driving overall data quality and preventing incidents across personalization engines and key stakeholder systems. Contract Details Duration: 6 Months Engagement Type: Contract (Individual Contributor) Key Responsibilities Lead frontend development while contributing to backend and infrastructure tasks ( 60-70% Frontend / 30-40% Backend & Data). Architect and build platform-level tooling and software interfaces for data contract management. Partner with engineering teams to integrate data contract workflows into existing development pipelines. Requirements Senior Frontend Expertise: Strong mastery of JavaScript (core skill requirement). Platform Experience: Proven background in internal platform or developer-tooling engineering (rather than pure consumer feature delivery). Full-Stack & Infra: Working knowledge of Java and general cloud infrastructure. AI Tooling: Comfort utilizing AI coding tools to accelerate delivery. Bonus: Experience or background in data engineering or data quality frameworks. Randstad Technologies is acting as an Employment Business in relation to this vacancy.

Data Engineer We're looking for an Data/ Analytics Engineer to join our client's high-performing Business Intelligence team, helping to build scalable, high-quality data solutions that power reporting, dashboards and self-service analytics across the business. Working closely with BI Developers and business stakeholders, you'll design and optimise ETL/ELT pipelines, develop curated data models, and translate business requirements into reliable backend data solutions. This is a fantastic opportunity for someone who enjoys solving complex data challenges and wants to work with modern cloud technologies in a collaborative, forward-thinking environment. What you'll be doing Design, build and maintain scalable ETL/ELT pipelines that deliver reliable, high-quality data. Develop curated, business-ready datasets that support reporting, dashboards and self-service analytics. Optimise data models, SQL queries and pipeline performance to improve efficiency and scalability. Implement data quality, monitoring and governance controls to ensure trusted, accurate data. Work with business stakeholders to understand requirements and translate them into robust technical solutions. Contribute to the continuous improvement of the data platform, exploring modern tooling and engineering best practices. What we're looking for Strong SQL skills with experience building and optimising data models. Experience designing and maintaining ETL/ELT pipelines. Experience working with cloud data platforms (AWS preferred). Exposure to data warehousing, data lakes and modern data architecture. Python experience (including PySpark) is beneficial but not essential. Exposure to BI platforms such as Power BI, Tableau or QuickSight, with an understanding of how backend data models support reporting and visualisation. Strong communication skills and the ability to work effectively with both technical and non-technical stakeholders. A genuine interest in modern data engineering practices and emerging technologies. The Team You'll be joining a highly collaborative and engaging team within a business that genuinely invests in its people. Alongside working on modern data technologies, you'll have the opportunity to influence the evolution of the data platform, work closely with experienced BI professionals, and continue developing both your technical and professional skills in a supportive environment. Please note: This is a backend-focused Analytics Engineering role centred around SQL, data modelling and ETL/ELT development, no visualisation.

Your new company You will be working for a well-known organisation. A large part of this role is remote with the occasional travel to the London office. It's 375 per day inside scope of IR35. The duration is a 3-6 month contract. Your new role We're looking for developers with solid experience building and maintaining iOS applications using Swift and/or Objective-C. The role involves working closely with Product, Design, Backend, QA, and DevOps teams to deliver new features, resolve issues, and ensure overall app performance, quality, and security. Candidates should be comfortable managing their own workload, contributing to code reviews and architecture discussions, and keeping up to date with the latest iOS technologies and Apple guidelines. Strong communication is key, as regular updates and collaboration across teams will be expected. What you'll need to succeed BPSS will be required prior to starting this role. If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment Limited 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 (url removed)

Java Developer - Public Sector - SC clearance required Java Developers needed who hold active SC clearance, to work on an exciting central government based project based out of London (95% remote role). As a seasoned Java Developer/Software Engineer, you'll have experience working with: Central government transformation projects, ideally with GDS experience. Java backend development with microservices. Spring framework (Spring Boot) based web applications. AWS and/or Kubernetes. CI/CD mindset and an agile approach. A consultative approach to problem solving and solution building. You'll enjoy taking a collaborative approach with stakeholders, ensuring that you ask the right questions to the right people, ensuring a successful delivery of the tasks you're looking to complete within a people first work environment. If you're a Java Developer who enjoys the intrinsic rewards that come when working for public facing websites and/or platforms- please do get in touch. All applicants must hold active SC clearance, this is a pre-requisite for the role, and ideally be based in a commutable distance from London. Location: 95% remote (monthly travel to London required) Clearance: Active SC Clearance required Start Date: Immediate

Senior Typescript Backend Developer Location : London Role Type: Permanent Work Setup : Hybrid - 3 days in the office Who We Are Vanguard is a global investment firm known for low-cost funds and ETFs, helping investors achieve long-term financial goals with transparent, disciplined strategies. What you'll do Develop and enhance Back End services supporting authentication and MFA platforms. Design, build and maintain RESTful APIs using TypeScript, Node.js and NestJS. Deploy, monitor and support applications within AWS using Infrastructure as Code. Maintain production services, including software updates, database migrations and operational support. Contribute to CI/CD pipelines, automated testing and continuous improvements to engineering practices. Collaborate with product, security and engineering teams to deliver secure, reliable technical solutions. What you bring Strong commercial experience with TypeScript, Node.js and NestJS or Express, with a proven track record of building RESTful APIs. Hands-on experience with AWS services including ECS, Lambda, CloudFront, S3 and Secrets Manager, alongside Infrastructure as Code using CloudFormation, CDK or Terraform. Good understanding of authentication technologies such as OAuth 2.0 and JWT, with exposure to identity or MFA platforms (eg Auth0 or Transmit Security) being advantageous. Experience using Git, CI/CD tools (such as GitHub Actions), and writing unit and integration tests with Jest. Knowledge of microservices architecture, API gateways (such as Kong), and databases including Aurora PostgreSQL or DynamoDB would be beneficial. Familiarity with security principles including IAM, encryption and networking, alongside observability tools such as OpenTelemetry, Honeycomb or Grafana. What's Next If you are ready to take the next step, apply now! Successful applicants will be contacted directly by a recruiter to discuss the role more. We are committed to creating an inclusive recruitment experience. If you require support or adjustments to the recruitment process, our Adjustment Concierge Service is here to help. Please feel free to contact us at (see below) to discuss how we can support you. This position is being recruited on behalf of our client through our Outsourcing service line. Resource Solutions Limited, trading as Robert Walters, acts as an employment business and agency, partnering with top organizations to help them find the best talent. We welcome applications from all candidates and are committed to providing equal opportunities.

Senior Java Developer - Java/Spring/AWS - Remote - £60,000 - HealthTech/Tech for Good Senior Software Developer required for a HealthTech, tech-for-good business delivering software that supports patient care and rehabilitation across the healthcare sector. Salary: £60,000 Location: Remote (UK) Great benefits included This is a hands-on senior developer role, not purely architectural. You will design, build and maintain features on a live SaaS platform, working closely with product and clinical teams in a regulated healthcare environment. It's a genuine opportunity to work on technology with real, measurable impact on people's health outcomes. Key Responsibilities: Design and develop software features using Java, AWS and PostgreSQL Write clean, maintainable, well-tested code Participate in code reviews and QA processes Troubleshoot and resolve client-reported issues Contribute to technical documentation and API specs Mentor junior developers Essential Skills: 5+ years commercial software development experience Advanced Java Advanced Spring (Spring Web MVC, Spring Data JPA, Spring Security, Spring AMQP, Spring OAuth2) Advanced SQL, ideally PostgreSQL Cloud architecture experience, ideally AWS Strong security best-practice knowledge Version control, testing, code review experience Strong communication skills Able to work independently and mentor junior team members Desirable Skills: Ansible Terraform Docker Thymeleaf OIDC (OpenID Connect) RabbitMQ SMS Messaging APIs Java, Spring Boot, Spring Security, AWS, PostgreSQL, Software Developer, Senior Developer, Backend Developer, Remote, HealthTech, Tech for Good.

Senior Backend Software Engineer - Warminster, Hybrid - Security Cleared - 90,000 We're looking for an experienced engineer to join a collaborative technology team delivering mission-critical software used within a large scale UK defence programme. This is an opportunity to take ownership of major backend initiatives, influence technical direction, and work on systems where performance, reliability and security genuinely matter. The Opportunity You'll be helping to shape architecture, solve integration challenges and design scalable backend solutions that connect multiple enterprise platforms. Working as part of an experienced engineering team, you'll play a key role in evolving a modern software platform, integrating with data platforms, ERP systems and partner technologies while helping establish engineering best practices across the wider team. You'll have the autonomy to make technical decisions, mentor fellow engineers and contribute to the long term direction of both the product and engineering function. What You'll Be Doing Designing and developing scalable backend services and APIs Building integrations with enterprise systems, data platforms and third-party applications Making architectural decisions around backend services and data flows Implementing event-driven and real-time integration patterns where appropriate Writing clean, maintainable, well-tested code using modern engineering practices Improving CI/CD pipelines, automated testing and platform observability Working closely with engineers, product specialists, project managers and customer stakeholders Mentoring developers and helping raise engineering standards across the team About You You'll ideally have experience in: Strong backend development experience using Java (or another modern backend language with the ability to transition) Designing RESTful APIs and distributed backend systems SQL databases and data modelling System integration and enterprise application development Event-driven architectures and messaging technologies CI/CD pipelines, automated testing and modern development practices Making sound technical decisions and working through ambiguous requirements Mentoring engineers and leading technical delivery You'll be someone who enjoys solving difficult engineering problems, communicates well with both technical and non-technical stakeholders, and takes pride in delivering high-quality software. Security Requirements Due to the nature of the work, applicants must be UK Nationals and eligible to obtain Security Clearance (SC). Existing SC clearance is advantageous but not essential. Senior Backend Software Engineer - Warminster, Hybrid - Security Cleared - 90,000

Global technology & software product company operating in the observability and monitoring space, is looking for a Senior Java Software Engineer to join their Platform Team in London . You'll help build the distributed services that sit at the core of their product, ingesting and transforming data at scale so it can power a range of analytics and monitoring tools used by customers around the world. Location: London (Old Street / Shoreditch). Salary: £90K - £110K basic , plus an extensive benefits package. Working arrangement: hybrid, ideally 2 days per week in the office, with flexibility considered. What you'll be doing Design and build distributed services from the ground up, working with core Java rather than solely relying on heavy framework usage. Develop event-driven systems using Kafka and event-streaming frameworks at scale Orchestrate deployments on Kubernetes , defining services, deployments and stateful sets Tackle hard problems around data consistency and availability, and shape how the platform evolves Mentor other engineers while continuing to learn from senior peers across a global team What you need to bring At least 7 years' experience as a backend Java developer, building complex distributed systems A deep understanding of core Java, data structures and concurrency, not just framework knowledge Hands-on experience with Kafka and event-streaming frameworks such as Flink, Kafka Streams or Spark Practical Kubernetes experience, including troubleshooting production issues Experience tuning JVM performance - garbage collection, CPU hotspots and heap dump analysis Why you'll love this job Genuine ownership - you'll take on your own piece of the product within 90 days, backed by a supportive team A strong learning culture, with a structured onboarding plan and an ambitious L&D policy behind you An extensive benefits package covering health, dental, pension, life assurance and more If you're a b ackend-focused Java engineer who enjoys solving hard distributed systems problems and wants to work on technology used at global scale , we'd love to hear from you. Apply today to find out more about this opportunity.

Java Developer Java AWS Angular Leeds (Hybrid) Permanent £80,000 £90,000 (DOE) Java Developer with Core Java and Spring Boot , AWS & Angular needed for a permanent career opportunity based in Leeds (Hybrid). Start ASAP ideally August/September 2026. Hybrid Working 2 days/week remote (WFH), and 3 days/week working on-site from the Leeds office. A chance to work with a leading global IT transformation business specialising in delivering large-scale Government digital modernisation projects. Key skills, experience + duties to include: Java Developer needed with strong front/back-end development skills + experience of AWS Cloud environments . Designing, developing + implementation robust + secure Java software solutions using Core Java and Spring Boot . AWS Cloud Services including: AWS S3, AWS Lambda, AWS Step Functions, Athena, Glue, DynamoDB, OpenSearch, CloudFormation, API Gateway, ECS, CloudWatch. Technical Environment: Core Java, Spring Boot, AWS Cloud Services, AngularJS , Jenkins, NodeJS, SQL/NoSQL databases, DynamoDB, GitHub, Backend, Frontend, CI/CD, DevOps, Kotlin, (url removed). Advantageous skills: understanding of DevOps/DevSecOps concepts, Docker, Containerisation + AWS Associate Developer accreditation. Benefits: Salary to £80k-90k (DOE) + Hybrid + 10% Bonus + Pension + Death in Service + Health Care Plan + More.

We're working with an innovative UK software business that develops complex engineering applications used by some of the world's leading organisations in the energy sector. As the business continues to grow, they're looking to appoint a Senior Java Backend Developer to join their highly experienced engineering team. This is an opportunity to work on genuinely challenging software rather than high-volume transactional systems. You'll be building scalable backend services and APIs that process large volumes of engineering data, helping transform complex information into meaningful, real-world solutions. Working alongside experienced software engineers, you'll contribute to architecture, influence technical decisions and help shape the future of a market-leading product. What You'll Be Doing Designing and developing scalable Java backend applications and REST APIs Building robust, maintainable and secure software solutions Working with complex, data-intensive systems Collaborating closely with frontend engineers and product teams Contributing to architecture and technical design decisions Improving performance, scalability and code quality Writing clean, well-tested and maintainable code Mentoring other developers and contributing to engineering best practice What We're Looking For Strong commercial Java development experience Experience designing and building REST APIs Strong SQL and relational database knowledge Excellent problem-solving and analytical skills Experience working within Agile environments Linux command line experience A passion for writing clean, secure and maintainable code Desirable Experience Neo4j or other graph databases Docker and Kubernetes AWS or Azure CI/CD pipelines Microservices architecture Experience within engineering, industrial, manufacturing or other data-intensive environments Why Apply? Work on technically challenging software with real-world impact Join a collaborative team of highly experienced engineers Influence architecture and technical direction Excellent long-term career prospects within a growing business Relaxed, supportive engineering culture where quality is valued over process Package Up to £90,000 depending on experience Flexible Hybrid working Leatherhead office Full-time, permanent position If you're an experienced Java Backend Developer looking to work on complex engineering software and enjoy solving challenging technical problems, we'd love to hear from you.