1 to 25 of 48 Permanent Senior Full-Stack Engineer Jobs in London

Senior Product Engineer, Full Stack - Energy £70,000 to £95,000 Permanent London, hybrid The opportunity Our client is hiring a Senior Product Engineer, Full Stack, to help build the next generation of customer … business and are pleased to be supporting them again on this important hire. This is a genuinely exciting opportunity for a frontend-strong engineer who wants real ownership, autonomy, and the chance to build products from scratch. They are looking for someone with strong React and TypeScript capability ...

About the Role Our client is hiring a Frontend Engineer/Full Stack Product Engineer to help build the software that their customers interact with directly, as they continue to scale their product and technology function. We have already recruited 3 individuals … operate with a high level of ownership, move quickly, and help shape both product and engineering direction in a growing business. Senior Frontend Engineer/Full Stack Product Engineer - Role Purpose We are looking for a Frontend Engineer ...

Senior Full-Stack Engineer (Backend-Leaning) – SaaS + AI Join a seed-stage SaaS startup backed by leading VCs, adopting AI to redefine their product. They’re pre-PMF, mid-pivot, and need a hands-on engineer (~80% coding … help build, define, and scale. 💰 Comp: Up to £100k + strong early stack equity package 🧑 💻 What you’ll do Full-stack engineering, backend-leaning (Next.js FE + BE, Node.js, TypeScript, legacy Python) Collaborate with product & CEO to shape the roadmap Help guide a small ...

core architecture, product direction, and scaling challenges. Requirements: • 5+ years of software engineering experience in high-performance production environments • Strong backend or full-stack engineering skills • Experience building scalable distributed systems and production infrastructure • Strong product engineering mindset with ability to move quickly and own features … Experience with TypeScript/Node.js strongly preferred • Experience with modern frontend frameworks (React/Next.js) is a plus for full-stack candidates • Strong understanding of system design, reliability, scalability, and observability • Experience in startups or fast-paced product environments is highly desirable • AI-native mindset — comfortable ...

RSMB is seeking an experienced and highly capable Senior Full Stack Engineer to play a central role in the design, development, and evolution of our expanding product suite, including Barb Ads Hub, NMO XCM, and our Data Fusion platform. You will join … London, and we are currently operating hybrid working: splitting the week between home and office working. The Senior Full Stack Engineer role: This role sits within the Development team in the Technology department and is critical to delivering scalable, high-performance, data ...

Staff Full-Stack Engineer We are looking for a Staff Full-Stack Engineer to lead the design and development of mission-critical product features and services that power our platform, used daily by thousands of travelers worldwide. ...

Fullstack Software Engineer to help shape their product and deliver value to ambitious, scaling teams. If you are an experienced full-stack developer with strong TypeScript expertise and a track record of shipping quality features in SaaS environments, this is an excellent chance … Support customers and sales teams by understanding their needs and translating feedback into product improvements. Requirements 5+ years of professional experience in full-stack web application development, (some of this must be within SaaS environments.) Strong expertise in TypeScript and a genuine appreciation for the language ...

Senior Fullstack Software Engineer (Signals Team) Location: London, UK (Hybrid) Department: Engineering Reports To: Engineering Manager Job Type: Full-Time About the Role We are looking for a Senior Fullstack Software Engineer to join our Signals Team, contributing ...

continuing to grow our engineering capability to support this ambition. We are looking for a Full-Stack Senior Software Engineer to join our cross-functional Health Insights squad.Join us at an early stage as we develop a platform that delivers personalised health … tech-stack includes Python, TypeScript,Next.js,PostgreSQL, Terraform (IaC), running in Azure (Kubernetes and AzureAppService) . Our engineers are full-stack, handling frontend,backendand infrastructure in a total ownership model - squads build and run it. As the platform grows,you’llhelp evolve the system ...

WorksHub is seeking a Senior Engineer in Greater London to design and maintain robust full-stack solutions using TypeScript, AWS, and GraphQL. The ideal candidate should have proven experience in software engineering roles with deep expertise in JavaScript, Node.js, and related technologies. ...

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 ...

About the Role We are seeking a Senior Full-Stack Engineer to join our team and help build the next generation of AI solutions. This is a unique opportunity to be a key technical contributor in a fast-paced, innovative environment where … wear many hats and have significant impact on our product and engineering culture. As a full-stack engineer, you'll work across the entire technology stack—from backend services and data pipelines to infrastructure and deployment. You'll collaborate closely with ...

Future Health Limited is seeking a Full-Stack Senior Software Engineer to join our Health Insights squad in Greater London. The role involves shaping systems dealing with sensitive health data and contributing to the development of a platform delivering personalized health insights. ...

leading health research organization in Greater London is seeking a Full-Stack Senior Software Engineer to join their Health Insights squad. The role involves shaping platform architecture, working with complex data, and supporting collaborative development practices. Applicants should have strong experience ...

London is looking for a Senior Engineer for their Content Agent. In this role, you'll engage in full-stack product work using TypeScript and React, contributing to the development of AI-powered systems that handle structured content. You’ll collaborate closely ...

seeking a Senior Software Engineer to join our Engineering Department in London. This role offers a hybrid work … approach with two office days per week and a commitment to personal and professional growth. As a Senior Full Stack Engineer, you will contribute significantly to modernizing our systems, enhancing customer experiences, and mentoring junior engineers. Enjoy benefits like a discretionary bonus ...

Java Script Works is seeking a Senior Software Engineer based in London, United Kingdom. In this full-time role, you'll work in a dynamic environment, contributing to both backend and front-end development. Proficiency in the JavaScript ecosystem, along with experience in Node.js ...

Senior Fullstack Engineer (AI-Native) — Freelance via Shakers We're hiring a Senior Fullstack Engineer to help build the enterprise backbone of an AI hiring intelligence platform that's redefining recruitment through voice-first, capability-based assessment. You'll join a lean ...

Java Script Works is looking for a Senior Software Engineer based in London, United Kingdom. The ideal candidate should have strong knowledge of ASP.NET Core and experience with frontend frameworks such as React and Vue.js. This full-time position offers a competitive compensation package. ...

Cancer Research UK is seeking a Senior Software Engineer to join their team in Stratford. The role involves delivering software applications, mentoring junior engineers, and applying Agile principles. You will work flexibly, either in the office or remotely. The ideal candidate has experience with TypeScript, JavaScript ...

Senior Product Engineer, Full Stack - Energy £70,000 to £95,000 Permanent London, hybrid The opportunity Our client is hiring a Senior Product Engineer, Full Stack, to help build the next generation of customer ...

Java Script Works is seeking a Senior Software Engineer (Associate) to work in London, United Kingdom. This full-time position offers competitive compensation and opportunities to work with modern … technologies such as C#, .NET core, and React.js. Ideal candidates will possess strong technical abilities across the stack, particularly in full-stack JavaScript and PostgreSQL. Collaboration within cross-functional teams is essential to deliver high-quality solutions. #J-18808-Ljbffr ...

Senior Software Engineer to join their team. The company is rapidly scaling and seeks someone experienced in full-stack development, especially with Typescript and AWS. Candidates should be prepared for a hands-on role with high impact on product features and systems. ...

Senior Software Engineer (Full Stack) Location: Stratford based (with high flexibility, office based 1-2 days per week or work remotely) Salary: £50,000 to £60,000 per annum dependent on experience Closing date: 23:55 on the 21st August (applications will … capabilities and iteratively design solutions. Supporting the development of more junior software engineers through mentoring. What we’re looking for Essential Experienced Software Engineer with experience in TypeScript/JavaScript, AWS, PHP. Ability to write clean, readable, and properly tested code based on tried and tested design patterns. ...

Ophelos Limited is looking for a Senior Software Engineer (Full Stack) in London. The role involves designing and delivering software with ownership, mentoring team members, and collaborating in a hybrid environment. The ideal candidate should have at least 5 years of experience ...