1 to 25 of 60 Permanent Senior Full-Stack Engineer Jobs in London

over a year — and used exactly that workflow to take a brand-new product from nothing to market. We're hiring another senior engineer who already works this way, or is unmistakably on that path, and who brings the judgment to do it well . … Essential Experience & Skills 8–10+ years building software with .NET technologies. Strong proficiency in C#, ASP.NET and the wider Microsoft stack. Solid full-stack experience across back-end and modern JavaScript/React front-ends. Strong grasp of software architecture, design patterns and engineering best practices. ...

MeanderX, formerly Orbio Earth, YC S23 | Senior Full-Stack Engineer | Germany, London, or Cape Town preferred. MeanderX is building AI-powered grid intelligence for renewable energy developers. We're hiring a Senior Full-Stack Engineer ...

Senior Software Engineer - Full-Stack/Cross-Asset Trading Systems Location London Business Area Engineering and CTO Ref # 10052703 Description & Requirements Join the Pioneers of Trading Technology: Imagine working on a team that's revolutionising the way financial markets operate, with … value quality above all. As a Senior Software Engineer in CATS, you'll be part of a full-stack platform team that's pushing the boundaries of what's possible with TypeScript, Redux and React, as well as our Data Publishing Pipelines ...

Senior Software Engineer (full-stack) Department: Engineering Employment Type: Full Time Location: London Hybrid: 2 days per week in our Tower Bridge office (Tuesdays and Thursdays) Description Uswitch is the UK’s favourite way to choose and manage home‐life ...

evolve. We need our engineers to be versatile, display leadership qualities and be enthusiastic to take on new problems across the full-stack as we continue to push technology forward. Our team has a decade-long track record of successfully bringing ML ideas from theory …/B experiments and applying Gemini to deeply understand their site and generate additional content for them to monetize. We are a full-stack team and we own everything from scaled AI pipelines to end-user UIs seen by billions of users. Google Ads is helping ...

Stack Software Engineer (Forward Deployed), you’ll collaborate directly with public sector counterparts to quickly build full-stack, AI applications, to solve their most pressing challenges and achieve meaningful impact for citizens. At Scale, we’re not just building … weeks per month in client offices for feedback and delivery. Architect production‐grade applications that integrate AI models with full-stack frameworks, managing everything from interactive UIs to backend APIs and systems. Deploy and manage infrastructure within cloud environments, ensuring the highest levels of system integrity ...

Docker, GitLab, Cloudflare What We're Looking For Essential Experience Strong commercial experience building and maintaining production Ruby on Rails applications Full-stack development capability across backend and frontend technologies Experience working with PostgreSQL in high-volume production environments Strong understanding of cloud infrastructure … accountability Interested in helping shape engineering culture and technical standards Passionate about modern software engineering practices If you're an experienced full-stack engineer who enjoys taking ownership, solving complex technical challenges and working in a collaborative, fast-moving environment, we'd love ...

London Metal Exchange (LME) is seeking a Senior Engineer in London to join the IT team. You will design, build, and operate scalable services across frontend, backend, data, and infra to support trading and enterprise platforms. You will collaborate with product teams, vendors and apply automated ...

Exchange Limited is seeking a Senior Engineer to join our UK-London team. You will work in a full-stack capacity across frontend, backend, data and infrastructure, delivering production-grade services and APIs that support our strategic SPM platform. You will partner ...

seeking a Senior Software Engineer (full-stack) to own end-to-end delivery in a small, autonomous team in London. You will design and build services across the stack using JavaScript/TypeScript, Go and possibly Clojure, with strong emphasis ...

keep our quality bar incredibly high, we want to execute with the smallest possible team. The Role As a Senior Full-Stack Engineer at Conveo, you'll spearhead the development lifecycle for the AI-powered platform, taking ownership of features from initial … making this an opportunity to have significant technical and strategic impact. What We’re Looking For 6 years of experience building full-stack applications with TypeScript and Node.js. Strong backend experience: designing APIs, working with PostgreSQL, and managing background jobs and async workflows. Solid frontend skills ...

Monq Ltd is building an AI-powered platform for strategic procurement negotiations. We’re hiring a senior full-stack engineer to own the full tech stack—from APIs to frontend to cloud infrastructure. You’ll ship production code ...

MeanderX, formerly Orbio Earth, is building AI-powered grid intelligence for renewable energy developers. We’re hiring a Senior Full-Stack Engineer to own high-leverage systems end-to-end: AI data analysis pipelines, scraping infrastructure, LLM extraction workflows, internal AI tools ...

leading AI technology company in London is seeking a Senior Full-Stack Software Engineer to develop innovative AI applications for the public sector. This role requires at least 5 years of engineering experience, specifically with React and cloud technologies. The position involves ...

Onetrace Ltd is seeking a Senior Full-Stack Product Engineer to own features from concept to deployment, building scalable backend services and intuitive frontend experiences. You will shape technical decisions and champion best practices while advancing the product direction. Join a hybrid ...

Bite Engineering is looking for a Senior Software Engineer based in London. The role involves shipping features across the full stack, working on technologies like Node.js and React. The successful candidate will have at least 8 years of experience, preferably ...

Senior Kotlin Developer UK Wide | Hybrid Working Permanent | £55,000 - £70,000 + Benefits We're supporting a leading digital consultancy as they continue to grow their engineering function and are looking for an experienced Senior Kotlin Developer to join one of their high-performing delivery … technical and non-technical stakeholders. Knowledge of frontend technologies such as TypeScript or Node.js . Experience delivering large-scale digital transformation programmes. The Senior Kotlin Developer Package £55,000 - £70,000 Pension scheme Flexible benefits package To hear more about this Senior Kotlin Developer opportunity ...

About The Role We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software systems. This role involves mentoring junior … process optimisation initiatives. Communicate complex technical concepts effectively to non-technical stakeholders. About You Professional knowledge and experience Essential Proven experience in full-stack software development, including design, development, testing, and deployment. Some of the languages and frameworks our teams work with: Java Python C#/ ...

Bloomberg L.P. in London is seeking a Senior Software Engineer to join the Cross-Asset Trading Systems team. You will build a scalable, high‐volume platform using TypeScript, React and Redux, delivering features across frontend and backend services within the CATS initiative. You’ll work with ...

Java Script Works is looking for a Senior Fullstack Engineer in London, United Kingdom. The role involves building user-facing features and core system components using a tech stack that includes React, Go, Node.js, and Java. Candidates are expected to work autonomously while maintaining ...

Senior Software Engineer to help build next-generation technologies and scalable systems across AI, data pipelines, and full-stack work. You will join a full-stack team owning end-to-end development with opportunities to switch projects ...

Senior Full Stack Engineer (Ruby + Vue) Hybrid in Central London Up to £100k DOE We're partnering with an ambitious SaaS business that is entering a pivotal stage of growth and transformation. Having successfully built a profitable software platform serving thousands ...

Google Ads in London is seeking a Senior Software Engineer to design and build scalable full‐stack systems powering billions of ad interactions. You will work across backend and frontend with ML pipelines and AI features, collaborating with UX, Product, Sales ...

Google is seeking a Senior Software Engineer, Full Stack, for Google Ads in London. You will work across the full stack to design and deploy scalable ML-enabled ad tech solutions, with emphasis on performance, reliability, and impact. ...

Senior Full Stack Software Engineer (Java + React) Location: London, United Kingdom About the Role This role focuses on full stack development using Java and React. Tech Stack User Interface Full‐stack React Software Engineer Java Qualifications Information Systems, Engineering, or related technical degree A minimum of 5‐8 years of experience in application development Strong Java/.NET Core skills with experience in concurrent and distributed systems Basic knowledge of User Interface design Compensation & Benefits Competitive compensation ...