1 to 25 of 72 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 ...

Senior Full Stack Engineer £85,000 to £105,000 Permanent Remote, with occasional London office visits The opportunity Our client is hiring a Senior Full Stack Engineer to take ownership of building the next … business operating in a complex and important energy market Summary This is an excellent opportunity for a Senior Full Stack Engineer who wants meaningful ownership rather than simply maintaining an established platform. You will lead the development of customer-facing software, work ...

Senior Full Stack Engineer £85,000 to £105,000 Permanent Remote, with occasional London office visits The opportunity Our client is hiring a Senior Full Stack Engineer to take ownership of building the next … business operating in a complex and important energy market Summary This is an excellent opportunity for a Senior Full Stack Engineer who wants meaningful ownership rather than simply maintaining an established platform. You will lead the development of customer-facing software, work ...

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 ...

it. Centrica Energy is the trading arm of Centrica, operating across power, gas, LNG and environmental markets. As a Senior Full-Stack Engineer , you will design, build and support strategic applications across our Trader Marks and Market Data platforms. Working primarily with … team typically coming in 3 days per week. #LI-CET Here's what we need you to do: Design, develop and support full-stack applications using C#/.NET, Azure and modern web technologies Build APIs, microservices and event-driven solutions Integrate market data, cloud services ...

About the Job Senior Fullstack Engineer (React/.Net) – London (Victoria) | Hybrid £80k - £110k Are you ready to craft the next generation of data-driven digital experiences for one of Europe’s most technically advanced SaaS innovators? Our client, a pioneer in B2B SaaS solutions … providing cutting-edge data visualisation and dynamic dashboards for high-velocity business & artificial intelligence. About the Role As a Senior Full-stack Engineer , you’ll play a key role in architecting and developing scalable, high-performance web applications that bring complex data ...

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 ...

Citi is hiring a Senior Full-Stack Engineer to help shape the future of finance. You will own end-to-end delivery of enterprise-grade web applications, spanning Angular frontends and Java/Spring backends, with data layers in MongoDB/MSSQL ...

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 ...

Citi is seeking a Senior Full-Stack Engineer to join Banking Technology for Opus Capital Management transformation. You will design and deliver enterprise-grade web platforms, leveraging AI development tools, with end-to-end ownership in a global, high-autonomy squad. ...

company is seeking a Senior Full-Stack Engineer to join the Banking Technology team for Opus Capital Management transformation. You will design and deliver enterprise-grade web applications, leveraging AI development tools and owning end-to-end delivery across Angular frontend ...

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 ...

Nikao Technology is seeking a Senior/Full-Stack Engineer to own end-to-end development of modern web applications on cloud platforms. You will work across front-end and back-end technologies, translating requirements into intuitive user experiences and robust functionality. ...

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 ...

Define scalable, secure, and resilient solution architectures across cloud, application, integration, and data platforms. Lead the design and delivery of cloud-native, full-stack solutions using modern frontend, backend, and API technologies across AWS and Microsoft Azure. Make pragmatic technical decisions that balance business objectives, security … Terraform), and release processes Ensure systems are secure, observable, performant, and cost-efficient. What we’re looking for Proven experience as a Full-Stack Developer delivering modern web applications across front-end and back-end technologies. Strong problem-solving skills with the ability to translate business ...