full-stack developer jobs in London

BNY is seeking a Director, Full-Stack Engineer to join the Enterprise Transformation Hub in the UK, with roles in Manchester or London. This role spans UX, APIs, data integration and AI-enabled solution delivery to accelerate impact across engineering and transformation ecosystems.In this role, you’ll make an impact by designing scalable developer-focused...

Secure Source is seeking a security-focused engineer to advance our authentication protocol, including replay/relay resistance and key handling, with emphasis on mobile platforms.You will integrate with identity providers via OIDC and WebAuthn/passkeys, and contribute to offline peer-to-peer authentication and its cryptographic protocol. Help keep systems...

Elsevier in the United Kingdom is seeking a software engineer to deliver secure, scalable software and cloud infrastructure in production. You will design, build, and deploy production-ready solutions in AWS, with CI/CD, monitoring, and incident response as part of a cross-functional Agile team.You will mentor colleagues, contribute to engineering standards,...

Doit is seeking a talented full stack engineer to help build and scale our AI Neobank app. You’ll work across frontend, backend, APIs, and internal tools to turn ideas into working products quickly and with a strong product focus.You will collaborate with product, design, mobile, backend and AI engineers, own features end-to-end, and contribute to scalable...

Yext is hiring a Full Stack Software Engineer to build web and backend solutions for enterprise clients. You will work in a Scrum environment with one-week sprints, peer reviews, and end-to-end ownership from kickoff to delivery.You will move between frontend and backend technologies, write clean, tested code, and help evolve data workflows and tooling to...

Bondaval, a leading financial technology company, is seeking a Full Stack / Back End Engineer to build and maintain core services and APIs. The ideal candidate will have experience in server-side programming (Go, Python) and modern frameworks (VueJS). You'll be part of an agile, collaborative team focused on innovative solutions in B2B credit. This hybrid...

Full Stack Engineer - React/ Typescript - Python (VP) Engineer the future of global finance. At Citi, our Tech team doesn't just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets,...

ARC IT Recruitment is partnering with a fast-growing marketplace tech business in Greater London to hire a frontend-focused developer. You will start with a strong React emphasis, working on high-traffic features and state management, with a clear pathway toward a balanced React/Node.js stack.A mobile app is on the roadmap, offering future expansion...

Dialpad in London is seeking a seasoned software engineer to build and maintain the Workforce Management product and related Agentic features. The role spans frontend and backend, delivering features in React, TypeScript, NestJS, PostgreSQL, Redis, and Google Cloud Platform.You will collaborate with Product, Design, and Engineering to translate customer...

Virtual Hire Staffing in Waterloo, London is seeking a Solution Engineer – Enterprise AI for a 6-month contract. This onsite role requires active SC clearance and five days per week onsite, with a daily rate of £650–£700.You will design, code, and deploy AI‑driven web apps on our platform, work directly with enterprise clients to build demos and...

Encord in London is seeking an experienced full-stack engineer to build high-performance frontend experiences and data visualization for the Physical AI stack, from 3D rendering to browser performance.You will own projects end-to-end, collaborate across backend and frontend, and work with robotics and autonomous-vehicle domains. Proficiency in...

Hayfin Capital Management LLP is hiring a Full-Stack Engineer to build our analytics workbench, enabling data-driven analysis and decision making across the business. You will own the in-house analytics platform, work across the full stack, and coordinate with an offshore vendor team to ensure timely delivery.The role emphasizes hands-on enterprise software...

Infused Solutions Ltd is seeking a Senior Product Engineer to shape greenfield AI-powered enterprise software. You will design and build modern web applications, collaborate with UX/UI designers, and integrate complex enterprise systems across the full stack.You will work in a hybrid environment in Central London, contributing to architecture and AI-assisted...

Avanade is seeking a Full Stack Developer in Greater London to lead transformative development projects. This role involves designing scalable applications using .NET and Azure, and implementing APIs and Microservices. The ideal candidate should have strong programming skills in C# and JavaScript/TypeScript, along with experience working on cloud solutions...

A leading FinTech recruitment agency is looking for a Full Stack Developer to join a high-performing team in Greater London. The role involves developing real-time web applications and requires solid experience in React and Python. You will work on building scalable systems and collaborate closely with product teams. Candidates should have a degree in...

A technology company based in the United Kingdom is seeking a talented Full Stack Software Engineer to build cutting-edge software solutions. This role involves developing and optimizing APIs, creating responsive frontends, and maintaining databases. The ideal candidate will have proven experience in API development and database management, along with a...

Thought Machine is hiring a Software Engineer for London to design and implement features across the stack, including frontend and backend work. The role focuses on security, performance, and delivering high-quality user experiences for banking clients.You will collaborate with backend and frontend colleagues, translate client requirements into concrete...

Capgemini is seeking a highly skilled Camunda Developer with expertise in workflow orchestration and full-stack development. The role focuses on Camunda 8 BPMN 2.0, Java/Spring Boot back-end services, and React front-end interfaces, built with TDD and CI/CD in an Agile environment.You will work across offices, client sites, and remote settings as needed,...

Senior Full Stack Software Engineer | AI StartupLondon | Hybrid (2–3 days per week with flexibility)Our client is hiring a Senior Software Engineer to help build the software platform behind a next-generation AI authentication product that's changing how people securely interact with technology.The AI doesn't rely on passwords, fingerprints or facial...

**C# Full Stack Engineer** FULLY ON SITE: London Salary: £75,000 to £100,000 This role offers the chance to deepen your expertise in C# and .NET within a highly technical team working on complex, performance-led systems. You will take on greater ownership while continuing to grow in a collaborative environment. **The Company** They are a growing,...