full stack developer jobs in London

Spectrum IT Recruitment is assisting a fast-growing UK SaaS company in London to recruit a Technical Lead Full Stack Developer. You will shape and deliver the next generation of customer-facing platforms through a hands-on leadership role in a cloud-based stack.You will be involved from early design to production delivery, leading a high-performing team and...

JPMorganChase is seeking a Software Engineer III in London to own end-to-end delivery of secure, full stack features using Java, Spring, and microservices. You will work with Kafka/event-driven patterns, CI/CD pipelines, and robust testing to improve performance and resiliency.You will mentor teammates, participate in architecture reviews, and help shape...

JuniorJunior is hiring in London to build an AI operating system for investment research. You will join a small, high-signal team shaping product and culture while delivering features that land with demanding customers.The role focuses on TypeScript/Next.js with PostgreSQL, building polished interfaces, and working directly with clients to inform product...

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...

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...

Wheely in West London is seeking a Full-Stack Engineer to help build privacy-first systems and architectures. You will work across the stack using React, TypeScript, and Node.js or Golang, collaborating with product managers, designers, and engineers to shape technical solutions from concept through production.The role offers hybrid work with an office-based...

Humaans is hiring a Software Engineer to help build and evolve a next‑generation AI‑powered HR platform. You’ll work across the product and stack, shaping features from definition to release, spanning frontend and backend, infrastructure, and integrations to deliver a better customer experience.You’ll collaborate with Product and Design, own features...

Data Science Festival is seeking a .Net Developer to take ownership of a core product platform that evolves with the organization. This senior role is primarily focused on enhancing the platform to deliver interactive experiences.You will closely collaborate with product, design, and engineering teams to improve features and security while integrating AI....

InnoCraft (Matomo) is building privacy-first analytics features in a fully remote UK role. You will own innovation from concept to deployment, collaborating with CTO and senior engineers to deliver production-ready solutions that integrate into Matomo’s core platform.We seek a seasoned Full Stack Engineer with 3–5 years of backend PHP/Python and frontend...

Treefera is hiring a Senior Full Stack Engineer to strengthen delivery capacity in Environmental Intelligence. You will build across UI, API and pipelines, combining Python with other languages as needed.You’ll work to turn ambiguous ideas into shipped software within existing platform constraints, while improving how the team builds, documents and scales....

As a Full Stack Software Engineer at JPMorgan Chase within the Corporate Sector - Data Center Services team, youwould be an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. As a core technical contributor, you are responsible for conducting critical...

FTSE Russell (LSEG) is building next-generation distribution capabilities that deliver index data to the global financial community — across APIs, cloud platforms, and modern data delivery channels We’re looking for a hands‑on Senior Engineer to design and scale the systems that power this distribution — enabling reliable, secure, and...

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...

Arva AI is revolutionising financial crime intelligence with cutting-edge AI Agents. As a Senior Full-Stack Product Engineer, you will build and iterate on full-stack features of our AI-powered platform, including document fraud detection and web due diligence, and develop systems to automate testing and model improvements.You will work across front-end,...

C3 AI is seeking Forward Deployed Engineers to design, develop, and deploy AI-driven enterprise applications on the C3 AI Platform. You will work directly with customers to deliver production-grade software, demos, and proofs-of-technology, while mentoring teammates and contributing to code quality.An ideal candidate has a STEM background, 2+ years in...

Responsibilities Build and enhance complex GUI applications used in real-time environments Develop trading, operational and workflow management tools Design and build Python services, APIs and backend components Work on event-driven and distributed systems handling large volumes of data Create intuitive dashboards and visualisation tools for...

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...

Attis, a London-based venture-backed startup, is seeking a Senior Full Stack Engineer to own the user-facing application and agentic tool layer from day one. The role focuses on real-time AI-powered coordination for critical infrastructure and logistics, with a strong emphasis on end-to-end product ownership.You will integrate TypeScript frontend with Python...

A leading AI modeling company is seeking a Full Stack AI Engineer to design and build AI-driven applications that enhance their software solutions. This remote role impacts numerous organizations by making complex modeling accessible. Candidates should have significant experience in AI/ML applications, strong coding skills, and a degree in a relevant field....

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...