full stack javascript engineer jobs in London

Avanti Recruitment Limited is seeking a Senior Java Fullstack Engineer to join a renowned software company in Central London. The role is hybrid, with 2 days in the office weekly, and a salary up to £75,000 depending on experience.You will design, develop and enhance enterprise scale software, working across backend Java/Spring Boot and frontend...

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...

Dex partners with a company building an AI data-integration and analysis platform. You will own the full stack, from React/Next.js frontend to Python services and cloud deployments, delivering features end-to-end.You will mentor juniors, collaborate closely with founders, product, and design on high-impact work, and help scale the engineering function while...

Oliver Bernard is seeking a broad, high-impact engineer to own full-stack development and help shape engineering practices across a team. The role focuses on core platforms and data products used by thousands of clients in education, translating complex data into actionable insights.Collaborate with Product, Engineering and QA to build scalable services,...

JPMorgan Chase is seeking a Senior Lead Full Stack Software Engineer within Cybersecurity and Technology Controls. You will lead a team delivering scalable front-end and back-end solutions, mentor engineers, and drive best practices across UI/UX and data pipelines.You will collaborate with product, design, and backend teams to ensure robust, secure software...

Copello Global Ltd is seeking a Full Stack Software Developer for a 6-month contract in London, onsite 4/5 days per week with one day from the client's office. The role focuses on mission-critical national security solutions, using AI, cybersecurity, cloud, and big data.You will implement end-to-end systems, collaborate with stakeholders, and adapt quickly...

Contract Role - VP Full Stack Engineer - Angular & Java/Solidity (smart contracts on Ethereum/blockchain) - London/Onsite - 12 months initial - Inside IR35 We are looking for 3 experienced VP-level Software Engineers to join the team as contractors on an immediate basis. The team is looking for well-rounded engineers with experience across multiple...

Holt Executive Ltd. is seeking a hands-on Full Stack Software Engineer to design, develop and enhance data-driven applications and cloud platforms.You will work across backend services, APIs and frontend interfaces, applying Python and TypeScript in a cloud-centric stack. The role involves building AI-enabled features, integrating with data pipelines, and...

Arthur Recruitment is seeking a Full Stack .NET Developer for a growing insurance company in London. You will build cloud-based applications using .NET/C#, React, and Azure services, while integrating DevOps, REST APIs, and AI-driven enhancements.The role emphasizes microservices, event-driven architectures, and IaC with Terraform, Docker, and Kubernetes....

Journi, a London-based technology consultancy, seeks a Full Stack Engineer with expertise in .NET and Vue to design, develop and refine web applications across frontend and backend. You will work hands-on with .NET 6+, EF Core, JavaScript, Prime Faces and VueJS 2/3 to deliver engaging interfaces.Responsibilities include building scalable applications,...

QuantumLoopAI in London is seeking a skilled Full Stack Developer to join our engineering team. You will work across the entire application stack, shipping features end-to-end and making architectural decisions that improve NHS patient access.You will collaborate with product, clinical, and commercial teams to translate NHS needs into reliable software,...

C3 AI is seeking Forward Deployed Engineers to design, develop, and deploy full-stack, AI-driven enterprise applications on the C3 AI Platform. You will work directly with customers to deliver production apps, demos, and proofs-of-technology.Ideal candidates will have strategic and analytical aptitude, solid software development experience, and strong...

Are you a software engineer who thrives at the intersection of technical delivery and application ownership? At JPMorganChase, we build technology that powers one of the world's most trusted financial institutions — and we're looking for engineers who take pride in both the quality of their code and the integrity of the systems they own. This is your...

ElevenLabs is seeking a Full-Stack Engineer to build and maintain our product suite, leveraging cutting-edge voice models. This role is remote, globally accessible, with optional offices in London, New York, San Francisco, and Warsaw.You’ll own end-to-end features across frontend and backend and collaborate across teams to ship impactful solutions. We...

Enfint ищет опытного Full-Stack разработчика для разработки и поддержки фронтенд и бэкенд решений в рамках проекта в Центральном Лондоне. Работа предполагает взаимодействие с командами по дизайну,...

Mongoose Gray is seeking a Full Stack Engineer to work in a fast-paced software environment in Greater London. The role offers a salary of £90,000 per year with benefits and remote working options. Responsibilities include developing front-end solutions with React and Typescript, building scalable back-end systems in Python/Django, and integrating...

Junior is building the AI operating system for investment research. You’ll own features end to end across the frontend, backend and data layer, shipping on a weekly cadence, not a quarterly one.You’ll design and build new ways of working with computers, work on groundbreaking LLM projects, and speak directly with clients to shape product decisions. Based...

Citi is seeking a Vice President-level Full Stack/Backend Engineer to join the Strategic Equity Solutions team. The role focuses on greenfield services to enhance trader workflows, with autonomy in technology decisions and direct engagement with users globally.The position supports hybrid work opportunities, emphasizes continuous delivery, and requires...

Model ML is an AI workflow platform transforming how financial institutions automate client-ready processes. We are seeking a highly skilled Full-Stack Engineer with 5+ years of professional experience to join our growing team.You will design and build scalable web applications using React and Next.js, with Python backend services, and contribute to...

Maxwell Bond is seeking a Senior Full Stack Developer to join a fast-moving HealthTech team building a new customer-facing platform using C#/.NET, React and Azure. You'll own significant parts of the backend and frontend, contribute to architecture decisions, and ship deliverables with an API-first approach.You'll work in a remote-first environment with...