senior java full stack developer jobs in London

What's the opportunity? Fin, now part of Salesforce, is on a mission to help businesses provide perfect customer experiences. Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, always-on customer support across the customer journey, from service, to sales, to ecommerce. Powered by our...

DescriptionWe are looking for a hands-on Senior Developer with strong experience in .NET and React to join our team and build scalable, secure enterprise applications and APIs.United KingdomRequirementsDeep experience as a Full Stack Developer with .NET and ReactGood knowledge of REST and SOAP APIs, API management, and Agentic platformsExperience with...

About the role As a Full Stack Developer, you will design and deliver secure, scalable, cloud-native applications across modern web, API, AI-enabled, and Azure services. You will work across the full development lifecycle, building responsive user experiences, robust backend services, event-driven integrations, and production-ready solutions using modern...

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...

Role Title: Full-Stack Java Engineer Location: London or Belfast - Hybrid Working ModelRate: Competitive Inside IR35 via Rockford PayrollDuration: 6 months initiallyOverviewDeloitte is seeking six senior full-stack software engineers with strong experience across Java back-end development and JavaScript front-end development to support a confidential...

Deliveroo in London is seeking a Senior Software Engineer - Full Stack to design and scale features across the stack, delivering world-class experiences for customers, partners and riders.The role is hybrid, typically 3 days in the office, and involves leading technical execution, architecture, mentoring, and partnering with PMs and designers.Strong...

**Job Description** Scale’s rapidly growing Global Public Sector team is focused on using AI to address critical challenges facing the public sector around the world. Our core work consists of: - Creating custom AI applications that will impact millions of citizens - Generating high-quality training data for custom LLMs - Upskilling and advisory...

US Cold Storage - USCS, based in Camden, NJ, is hiring a Full Stack Java Developer. The role focuses on building scalable, testable software for warehouse management systems with Java and frontend work. You will participate in Agile Scrum, drive design patterns, and contribute to microservices and REST APIs.The position requires strong Core Java, Spring, and...

**Must-Have Skills** • Angular 10 + • node.js • npm • Ag-Grid • Java • Spring Boot • SQL Server **Nice To Have** • Microservices • Docker • Kubernetes • Jenkins • Kafka • WPF.NET (xaml) • C# Key Responsibilities - Design, develop, and maintain responsive web applications using Angular. - Build and enhance backend...

JPMorganChase in London is seeking a Software Engineer III to join the Infrastructure Platforms, Data Center Services team. You will design, develop, and deliver full-stack solutions across frontend (React) and backend (Node.js/TypeScript, Python) services in a secure, scalable environment.As a seasoned member of an agile team, you will mentor juniors,...

Octopus Energy Group is seeking a Senior Fullstack Software Engineer (Python and React) to join our product and engineering team, building the systems that power our electric car leasing platform. Our tech stack includes Python with GraphQL, React with Next.js, PostgreSQL and NoSQL, deployed on AWS.You will work within a cross-functional team, build APIs,...

Robinhood is hiring a Senior Full-Stack Software Engineer in London. You will own the design and end-to-end delivery of features across the Prime surface—from backend services to frontend and backoffice screens.You’ll mentor teammates and push for robust, fault-tolerant systems with strong design discipline. Based in our London office with in-person...

Fin, now part of Salesforce, is on a mission to help businesses provide perfect customer experiences. As a Senior Full Stack Engineer in Team Web, you’ll craft intuitive front-end experiences and build backend systems that power them, collaborating with product marketers, designers, and engineers across the business.You’ll work across UI, APIs, and...

Pleo is hiring a Senior Full Stack Data Analyst to bridge commercial analytics and customer intelligence. You will build end-to-end analytics solutions—retention models, growth dashboards, and activation funnels—that directly influence how Pleo acquires, onboards, retains, and grows its customer base.You will partner with CX, Sales and Success, work with...

Lendable is seeking a full-stack Python engineer to join the Central Operations team in London. You will own engineering of internal web apps and automation used by Ops, building with Python (FastAPI/Django/Flask) and frontend technologies like React.The role emphasizes collaboration with Product, Data Science and Analytics to deliver scalable solutions. You...

**Company Description** Come join us and make a difference in the world! Discover more at www.necsws.com **Job Description** Please note that for this role you must be eligible for security clearance, so must have been a resident in the UK for a minimum of 5 years. We are seeking a developer who wants to grow as part of an experienced...

Senior Java Full Stack EngineerPlease ensure you read the below overview and requirements for this employment opportunity completely.Salary: £60,000 - £70,000 plus benefits, perks, and healthcare options!Job type: Permanent | Hybrid (1-2 days per week) | Occasional travel to client sitesSecurity Clearance: Must be SC eligibleBase locations: London,...

Conveo is hiring a Senior Product Engineer who shapes product direction by starting from user problems and owning everything from concept to deployment. You will own the full stack, lead frontend architecture in React/TypeScript, and ship complete features end-to-end, including AI-powered capabilities built on LLM APIs.You will engage with customers weekly...

Music is Universal It’s the passionate and dedicated team at Universal Music who help make us the world’s leading music company. From A&R to finance, legal to digital, sales to marketing, Universal Music is the place to grow and develop your career within a truly commercial and innovative business that leads in everything it does. Everyone is welcome to...

Salary: £60,000 – £65,000 - (dependent on experience) Contract Type: Permanent – Full Time Security Level: SC Location: Gatwick – Hybrid Visa Restrictions: This position does not offer visa sponsorship   Closing Date: Friday 6th November 2026 Screening Calls: w/c 9th November 2026 Interviews: from w/c 16th November 2026   We are the UK's aviation...