full stack javascript engineer jobs in London

A leading technological organization is hiring a Senior Fullstack Engineer with a backend focus to join their remote team. This role involves core product engineering on the Feeld mobile app and backend systems, requiring extensive backend development experience with TypeScript and AWS technologies. The company promotes an inclusive work culture, offering...

Liberty Global Plc is seeking a hands-on Full Stack Engineer to design, build and evolve AI-first telecom platforms serving millions of customers across countries. You will work with the VP Software Engineering to translate architectural direction into production software, balancing performance and security.You will contribute across backend, frontend, APIs...

We’re looking for a Lead Python Full-Stack Engineer (AI Integration) to join our team in the United Kingdom in a hybrid working mode. In this role, you will lead the design and delivery of enterprise-grade solutions, combining backend development, modern front-end capabilities and AI/ML integrations in a cloud-native environment. You will drive...

Smart Communications is seeking an experienced full stack developer to help build and scale our enterprise-grade customer engagement platform. This remote role offers occasional visits to our Covent Garden office, and a highly competitive salary.You will own features from conception to production, collaborate with product management, and contribute to a...

Runna is seeking a Staff Software Engineer (Full Stack) to drive the technical success of the platform across multiple squads. You will provide architectural direction, mentor engineers, and champion scalable, secure solutions while leading end-to-end delivery of major initiatives.You will shape the technology strategy, collaborate with Product and Design,...

A technology-driven organization based in London is seeking a Full Stack Developer for a full-time permanent role. The candidate will develop scalable APIs and maintain web applications while collaborating closely with teams. Ideal applicants have over 4 years of experience, outstanding skills in both frontend and backend technologies such as React and...

We power people’s progress. At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real impact. We’ve just reached unicorn status with a $150M...

CPC Project Services LLP in London is recruiting a full stack Software Engineer to join our team. You will combine technical acumen with a focus on user experience to build software for control rooms supporting the operational rail environment.You’ll work with rail domain experts to translate needs into robust software, tackling frontend, backend, and...

What You'll Be Doing Building and enhancing front-end trading and workflow applications using React, TypeScript and Java. Developing and maintaining backend services supporting order routing, execution workflows and trading infrastructure. Partnering closely with quantitative research, execution and trading teams to deliver new functionality and platform...

A leading tech recruitment agency is offering a Full Stack Developer Opportunity in London. The successful candidate will design and implement services in Python and collaborate on infrastructure maintenance in a dynamic, agile team. They must have at least 4 years of experience and the right to work in the UK. This role offers the chance to work on...

Airswift is seeking a Full Stack Java Engineer to support a large-scale application platform hosting 40+ business-critical apps. Based in the Netherlands, the role combines onsite and remote work across a hybrid setup, with a focus on modernising legacy systems using Java/Spring Boot and Angular.You will work with business stakeholders to translate...

JPMorgan Chase is seeking an experienced Software Engineering Leader to join the Asset & Wealth Management Risk Technology group as a Lead Software Engineer. You will design, develop and evolve a business-critical risk analytics and reporting platform used by Risk managers and senior leadership across the firm.You will partner with Product, Risk, Data,...

Preply is seeking a Senior II Full-Stack Engineer (backend heavy) in London. You will work in a hybrid, engineering-focused environment to deliver scalable backend systems with Python/Django and frontend in React/TypeScript.The role emphasizes technical leadership, mentorship, and data-driven product development within a fast-growing EdTech platform that...

ChatBotKit is hiring a Full Stack Developer to design, build and deploy AI-powered applications from a fully remote setup. You’ll work on frontend (React/Next.js) and backend (Node.js/Python) with cloud infrastructure in AWS and Google Cloud, shaping scalable, secure features for enterprise clients.Ideal candidates bring 5+ years in full stack development,...

Full Stack Engineer / Developer (C# TypeScript Azure) London / WFH to £120kAre you a technologist with full stack development skills looking for an opportunity to make an impact at a scaling start-up?You could be joining a tech incubator funded by a major investment bank, working on complex cutting edge AI technology.As a Full Stack Engineer you'll join a...

Koch Ag & Energy Solutions in London is seeking a Senior-level Full-Stack Software Engineer to design and deliver scalable technology solutions for middle-office capabilities, including trading operations and data integrity.You will influence architecture and guide platform evolution while improving data quality, operational controls, and reliability. Based...

Conveo is seeking a Senior Product Engineer to own the full stack, from the interface to the cloud infrastructure. You’ll lead frontend architecture in React/TypeScript, design robust APIs, and deliver AI-powered features built on LLM APIs.You’ll work closely with customers, shape product direction, and report to the CTO. The role blends hands-on coding...

sees.ai is building autonomous drone technology to change how infrastructure is inspected and managed. We deliver large-scale autonomous inspection programmes for National Grid and other operators, backed by Boeing and with a founding team from Apple, CERN and McLaren F1.We solve hard problems in autonomy, aviation and regulation and now tackle scale with...

A tech startup in Greater London is seeking a Full-Stack Engineer to join their small team. The ideal candidate will own the delivery of product features, write backend logic, and build user interfaces using React. The position requires 3-5 years of experience in software development and a strong proficiency in Python. This is an in-person role, offering...

Selby Jennings is hiring a software engineer to design and enhance trading platforms. The role covers front-end work with React and TypeScript as well as backend services in Java, supporting order routing and execution workflows across a global platform.You will collaborate with quantitative research, execution and trading teams to deliver new functionality...