full stack javascript engineer jobs in London

La Fosse Associates is seeking a Senior Full Stack Software Engineer to own a production SaaS platform and help shape product strategy in a London hybrid setting. You will design and scale full-stack apps using TypeScript, React, Next.js, Go and Python on AWS, while building AI-powered features and AI tooling for enterprise customers.The role focuses on...

Capital Group is seeking an experienced Software Development Engineer II to contribute to the Enterprise Data Office Content Delivery team in a hybrid role. You will lead full stack engineering delivery, collaborating with business and product leaders to transform workflows into clear outcomes and technical specs.You’ll design and deploy modern full stack...

SmartChoice International GCC in London is seeking Forward Deployed Engineers to own features end-to-end, working directly with customers to translate complex workflows into scalable software solutions.You will build across the full stack, including frontend, backend, data models and AI/model layers, and ship production software quickly while iterating on...

Neo4j in London is seeking a software engineer with deep frontend expertise to join our Graph Engine team. React will be your core strength, but this is a genuinely full-stack role spanning backend, cloud, and connectivity.You'll guide the UI's technical direction, collaborate with engineers across the stack, and mentor others as you contribute from frontend...

InvestorFlow in London seeks a skilled Full-Stack Software Engineer to design, develop, and maintain robust APIs and modern user interfaces.You will work across the stack with .NET Core, React, SQL Server, MongoDB, and cloud tools, ensuring secure, scalable applications. Collaboration with product teams and CI/CD pipelines will be essential, with...

Harnham - Data & Analytics Recruitment seeks a Full Stack AI Engineer on a contract basis. Must have SC Clearance, work fully remote in the UK, and operate outside IR35. Immediate start with day-rate £500–£550.You will design and develop full-stack AI apps, build interfaces and APIs, deploy LLM-powered solutions, and manage data stores. Experience with...

A leading digital bank in the UK is seeking a Full Stack Engineer who is comfortable with both front-end and back-end development. You will work on building the tooling necessary for our engineers, as well as writing and debugging code primarily in Java and React. The hybrid work model allows flexibility, supporting up to two remote days a week. The ideal...

LocationLondonEmployment TypeFull timeDepartmentWexlerAbout Wexler:Wexler is building the best AI system for litigation on the planet. We work with some of the world’s largest law firms, helping them to solve their most complex cases, find the winning strategy in each matter, and create clarity from the chaos of documents and facts in each case. We are a...

Keylane UK is seeking a Full Stack Developer to build SiteView with React front-end and Java/J2EE back-end, in a Docker/AWS environment.You will contribute across the development lifecycle, prototype features, write tests, and deploy, collaborating with a small team to deliver scalable SaaS for insurers. You will investigate issues, optimize performance, and...

A leading digital bank is seeking a talented data professional to join their dynamic team in Greater London. The role requires expertise in designing REST APIs, coding in Java, and developing modern front ends using React. This position offers a hybrid working model and numerous benefits including 33 days holiday, medical insurance, and flexible working...

Cavendish Professionals is seeking a customer-facing Full-Stack / Forward Deployed Engineer to bridge user problems and AI deployment. You’ll design, build, and ship production-grade solutions, working directly with enterprise clients to deliver high-velocity, production-ready architectures.The role demands React/TypeScript/Python expertise, experience...

About Wheely Wheely is redefining premium transportation across major cities in Europe, the US, and the Middle East. We blend cutting-edge technology with the craft of five-star chauffeuring to deliver an experience trusted by more than 100,000 active riders and 1,200 corporate accounts. We’re a profitable, fast-growing scale-up with $43M raised and over...

BNY Wealth Services Platform seeks multiple Full-Stack Engineers in London or Manchester. You will design, build, test, and deploy scalable applications across front-end and back-end, aligning with business needs.You will collaborate with product, operations, and security to deliver practical solutions, writing quality code and contributing to core...

HCLTech is seeking a Senior Java Engineer to strengthen its RMS Trade Processing platform. You will design and deliver scalable full-stack solutions using Java, Spring Boot, Angular, and React, contributing across backend and frontend components in a business-critical system.The role requires 8+ years of enterprise software experience, expertise in RESTful...

PlannerPal is seeking a Senior Full-Stack Engineer to bridge application development with a strong background in DevOps and enterprise-level engineering. You will design and build key features, develop CI/CD pipelines, and deploy AI-enabled services on AWS.The role offers remote-first work within the UK and close collaboration with founders during a defining...

Quantum is seeking a Senior Full Stack Engineer to grow our Technology team in Greater London. You will help shape and scale our platform, delivering high-quality development across frontend and backend systems while mentoring teammates and driving continuous improvement.You will work across Next.js/React-based frontends and Node.js/Express backends,...

Lennox Soft in London (Shoreditch) seeks a Senior Full-Stack Cloud Engineer to architect and ship resilient cloud-native applications for European clients. You will leverage TypeScript, React, and Laravel/Node.js to build scalable web systems and orchestrate serverless and containerized workloads on AWS.You will ensure compliance with GDPR privacy standards...

Our Future Health is hiring a full-stack focused mid-level Software Engineer to join our Research Enablement squad in London. You'd work with a Staff Software Engineer and a Security Engineer, taking ownership of frontend, backend and infrastructure across the stack in a collaborative, cross-functional setting.The role emphasizes high-quality code,...

About the Job you are considering:We are hiring a Senior Full Stack Engineer AI , AIML focused with strong technical leadership to join our team in Sheffield This role is hands on and suited to someone who can lead by example partner with stakeholders and help shape engineering standards while delivering high-quality software at paceHybrid working:The places...

Burns Sheehan Limited partners with a rapidly scaling AI product company in London to hire a Senior Product Engineer. You will own features end-to-end, collaborating with Engineering, Product and Design to shape AI-powered experiences that drive real customer value.The role requires hands-on leadership across frontend and backend, with strong experience in...