Senior Fullstack Engineer | £80,000 – £95,000 + Equity | TypeScript | React Native | Node.js | Serverless | Hybrid (1-2 Days in London) Join one of Europe’s most exciting consumer fitness startups—fresh off a £5M fundraise, recognised by Apple as a finalist for Global App of the Year, and recently acquired by a category-defining global fitness … and Apple Watch apps already live, they’re scaling their engineering team to take their platform to the next level. This is a rare opportunity to build full-stack features across mobile, web, and backend systems—in a mission-led, product-obsessed, high-performance team. 🧑💻 What You’ll Do: Design, build, test, and ship new features … AppSync, DynamoDB, S3, EventBridge, SNS Tooling: GitHub Actions, Fastlane, Sentry, Mixpanel, Intercom, Maestro E2E, Terraform ✅ What You Bring: 4+ years of software engineering experience (frontend, backend or full-stack) Strong TypeScript and JavaScript skills Proven ability to ship end-to-end features across the stack Comfort working in fast-paced, iterative environments (they shipped More ❯
Senior Fullstack Engineer | £80,000 – £95,000 + Equity | TypeScript | React Native | Node.js | Serverless | Hybrid (1-2 Days in London) Join one of Europe’s most exciting consumer fitness startups—fresh off a £5M fundraise, recognised by Apple as a finalist for Global App of the Year, and recently acquired by a category-defining global fitness … and Apple Watch apps already live, they’re scaling their engineering team to take their platform to the next level. This is a rare opportunity to build full-stack features across mobile, web, and backend systems—in a mission-led, product-obsessed, high-performance team. What You’ll Do: Design, build, test, and ship new features … AppSync, DynamoDB, S3, EventBridge, SNS Tooling: GitHub Actions, Fastlane, Sentry, Mixpanel, Intercom, Maestro E2E, Terraform ✅ What You Bring: 4+ years of software engineering experience (frontend, backend or full-stack) Strong TypeScript and JavaScript skills Proven ability to ship end-to-end features across the stack Comfort working in fast-paced, iterative environments (they shipped More ❯
London, England, United Kingdom Hybrid / WFH Options
Burns Sheehan
to learn more. Base pay range Direct message the job poster from Burns Sheehan Senior Director - Engineering at Burns Sheehan SeniorFullStackEngineer – THE AI Scale-Up of 2025 | Future Unicorn Up to £125,000 plus excellent stock options Remote First – London Office for those who want it Next.js … React | Typescript | Node Are you a product-focused SeniorFullStackEngineer who enjoys autonomy and wants to build products from end-to-end? If so, read on... SeniorFullStackEngineer – We have been exclusively engaged by one of the most exciting tech … They believe in building fast and iterating, working closely with product and customers, to evolve their cutting-edge AI solutions. What is SeniorFullStackEngineer for them? The SeniorFullStackEngineer will have experience of building complex solutions in product-driven companies More ❯
research, and data science. Our squads focus on delivering high-impact features – we favour a highly iterative, analytical approach. We're looking for a SeniorFull-stackEngineer to join our Development team. Principal Accountabilities: • Build robust and scalable software for business critical, web-based applications • Build eye-catching, functional, efficient, and … for one or more of Ki’s core technologies • Mentor and coach colleagues in both engineering and business domain subjects Required Skills and Experience: • Experience as a mid-senior level engineer working across a modern web stack • Strong software engineering principles (SOLID, DRY, ER modelling) • Professional experience with a server-side language, ideally JVM More ❯
research, and data science. Our squads focus on delivering high-impact features – we favour a highly iterative, analytical approach. We're looking for a SeniorFull-stackEngineer to join our Development team. Principal Accountabilities: • Build robust and scalable software for business critical, web-based applications • Build eye-catching, functional, efficient, and … for one or more of Ki’s core technologies • Mentor and coach colleagues in both engineering and business domain subjects Required Skills and Experience: • Experience as a mid-senior level engineer working across a modern web stack • Strong software engineering principles (SOLID, DRY, ER modelling) • Professional experience with a server-side language, ideally JVM More ❯
research, and data science. Our squads focus on delivering high-impact features – we favour a highly iterative, analytical approach. We're looking for a SeniorFull-stackEngineer to join our Development team. Principal Accountabilities: • Build robust and scalable software for business critical, web-based applications • Build eye-catching, functional, efficient, and … for one or more of Ki’s core technologies • Mentor and coach colleagues in both engineering and business domain subjects Required Skills and Experience: • Experience as a mid-senior level engineer working across a modern web stack • Strong software engineering principles (SOLID, DRY, ER modelling) • Professional experience with a server-side language, ideally JVM More ❯
research, and data science. Our squads focus on delivering high-impact features – we favour a highly iterative, analytical approach. We're looking for a SeniorFull-stackEngineer to join our Development team. Principal Accountabilities: • Build robust and scalable software for business critical, web-based applications • Build eye-catching, functional, efficient, and … for one or more of Ki’s core technologies • Mentor and coach colleagues in both engineering and business domain subjects Required Skills and Experience: • Experience as a mid-senior level engineer working across a modern web stack • Strong software engineering principles (SOLID, DRY, ER modelling) • Professional experience with a server-side language, ideally JVM More ❯
London, England, United Kingdom Hybrid / WFH Options
Contentful
Shape the Future of Digital Content as a SeniorFullStackEngineer with Contentful. Play a pivotal role in shaping the future at Contentful, where we redefine how the world interacts with digital content. Our team plays a central role … in crafting the core editorial workflows that power some of the world's leading brands, enabling creators to plan, preview, and publish content with confidence. We build full-stack solutions that balance usability and scalability, giving teams the autonomy to deliver impactful experiences while working within a rich, modular platform. If you're driven by solving … moving targets effectively. What you need to be successful Extensive FullStack Expertise: Proven track record as a SeniorFullStack Software Engineer with substantial experience using TypeScript, React, and Node.js. Demonstrable Leadership: Proven experience in a senior role, such as a tech lead, performing the More ❯
to help families across the world care for their loved ones back home. Our product has grown from a low-code MVP (Airtable + Glide) to a full-stack platform, and we're now building a scalable, robust engineering foundation. As our second engineering hire, you'll work closely with our Tech Lead and founding team More ❯
About the Role Abnormal Security is looking for a SeniorFullStackEngineer to join the Behavioral Security Products team . Our company is built around the idea of first understanding the person we are trying to protect using baselines of historic behaviour and ML models to determine what normal looks like … work autonomously and asynchronously with remote collaborators and stakeholders Well rounded and can switch contexts between building frontend UI components and backend APIs Looking to grow as an engineer as part of a strong team, learning from established engineers, product managers, and designers Know what it takes to be successful working with remote collaborators and stakeholders, and are More ❯
About the Role Abnormal Security is looking for a SeniorFullStackEngineer to join the Behavioral Security Products team . Our company is built around the idea of first understanding the person we are trying to protect using baselines of historic behaviour and ML models to determine what normal looks like … work autonomously and asynchronously with remote collaborators and stakeholders Well rounded and can switch contexts between building frontend UI components and backend APIs Looking to grow as an engineer as part of a strong team, learning from established engineers, product managers, and designers Know what it takes to be successful working with remote collaborators and stakeholders, and are More ❯
SeniorFullStack Software Engineer - FX Pricing (React, Typescript, Java, API) - London (VP) SeniorFullStack Software Engineer - FX Pricing (React, Typescript, Java, API) - London (VP) The Applications Development Senior Manager is a senior management level position responsible for accomplishing … financial objectives by providing them with cutting-edge ideas, best-in-class products and solutions, and unparalleled access to capital and liquidity. The role We are seeking a Senior Applications Developer to join a successful team delivering pricing projects for the Foreign Exchange (FX) Business. The role involves all aspects of the software development life cycle: analysis, design … and reporting control issues with transparency, as well as effectively supervise the activity of others and create accountability with those who fail to maintain these standards. As a Senior Software Engineer (Vice President), your mission is to help shape our team of innovators and technologists toward creating next-level solutions that improve the way our business More ❯
London, England, United Kingdom Hybrid / WFH Options
Odeko, Inc
UK - SeniorFullStack Software Engineer United Kingdom About Us Odeko is on a mission to champion your neighborhood cafes, coffee shops, and other establishments through technology. Whether we’re saving small business owners hours every week with our tech-based operating platform, reducing CO2 emissions by consolidating deliveries, or developing a … small business owners, they are not only transforming daily operations but also redefining what’s possible when innovation meets real-world impact. Role Overview In the role of SeniorFullStack Software Engineer, you will play a pivotal part in designing and delivering end-to-end solutions that redefine efficiency for small More ❯
solutions. You're eager to learn new tools and techniques, constantly expanding your skillset to solve problems more effectively. You're passionate about your personal growth as an engineer and see each project as an opportunity to develop new capabilities. You seek out challenges that push you beyond your comfort zone and value environments where you can learn … customer needs into technical solutions that make their work easier and more productive, even without the guidance of dedicated UX or product teams. Your Impact As our Full-Stack Developer, you'll be essential in creating the interfaces and experiences that make our AI capabilities accessible and valuable to users. You'll work closely with our More ❯
London, England, United Kingdom Hybrid / WFH Options
SourceIn
About the job SeniorFull-StackEngineer (Fintech) - Remote | $65,000 USD/year SeniorFull-StackEngineer (Fintech) Remote | $65,000 USD/year Company: TheOneGate Join us at TheOneGate , a fast-growing fintech startup revolutionising banking and payment integrations. We're building … a secure, scalable, full-stack platform powering real-time financial services. We're hiring the core team to lead this transformation. As a SeniorFull-StackEngineer , you'll play a key role in modernising our microservices architecture, improving performance, and building new banking features. This is a … engineer : We're transitioning from third-party vendors to an in-house teamyoull be one of our first engineering hires. Your Day-to-Day Build full-stack features with Vue.js/React and Node.js Migrate services to Node.js v22 and TypeScript Refactor legacy code to use modern frameworks and tooling (Vite, esbuild) Design and More ❯
London, England, United Kingdom Hybrid / WFH Options
Admiral Insurance Plc
Social network you want to login/join with: We are currently offering a compelling opportunity within the IT Digital tribe for a SeniorFullStack Engineer. This role presents an exceptional chance for an individual with substantial web development experience to make a direct impact on Admiral Group's portfolio of websites. Our … balance. Motivated by a commitment to deliver high-quality products swiftly and efficiently to our business stakeholders, we operate with diligence and enthusiasm. In the capacity of a SeniorEngineer, your primary responsibility will be to spearhead the development of changes across all our brand websites, encompassing the construction of new websites and web pages. Your … role demands the delivery of high-quality, maintainable, and efficient code adhering to defined standards. As a SeniorEngineer, staying abreast of the latest frontend and backend development technologies is crucial. Your ability to function seamlessly within a team, as well as independently, will be essential, requiring effective multitasking, workload prioritization, and resourcefulness. Key Responsibilities: Develop More ❯
Company Profile: Our client is a UK headquartered company. You will embody their company culture and use your craft and creativity to help them take their operating system to the next level. You will be working on their Backend API More ❯
London, England, United Kingdom Hybrid / WFH Options
Manila Recruitment
Company Profile: Our client is a UK headquartered company. You will embody their company culture and use your craft and creativity to help them take their operating system to the next level. You will be working on their Backend API More ❯
London, England, United Kingdom Hybrid / WFH Options
Capgemini
do your best work across the telecoms, banking, travel, utilities, and many other industries. An Overview of the Role As an experienced SeniorFullStackEngineer, you will work within all aspects of solution development, including the overall design and architecture of the technical solution, implementation patterns and code quality, CI/ More ❯
Belfast, Northern Ireland, United Kingdom Hybrid / WFH Options
Version 1
we reward those who display and foster them, it’s deeply embedded within our DNA. Invest in us and we’ll invest in you Job Description As a SeniorFullStack Developer, you will be working in a Scrum Team of cross-functional skills in tight collaboration practising Agile. You will be contributing to More ❯
right through to delivering the code to the customer A desire to build up and see others succeed, rather than wanting to be the Hero We believe every engineer should have a fundamental understanding of development, infrastructure, and testing and therefore you'll need at least some of these skills to help you pick the role up quickly. More ❯
right through to delivering the code to the customer A desire to build up and see others succeed, rather than wanting to be the Hero We believe every engineer should have a fundamental understanding of development, infrastructure, and testing and therefore you'll need at least some of these skills to help you pick the role up quickly. More ❯
Join to apply for the SeniorFull-StackEngineer (m/f/d) role at 3B Scientific About Us At Immersive Interactive, we create cutting-edge immersive experiences and spaces powered by our Immersive Studio platform. Our interactive environments, featuring continuous spanning images projected across walls and floors, are transforming how … people learn, train, and explore in education, simulation training, and beyond. About The Role Join our development team as a SeniorFull-StackEngineer working on our innovative Immersive Studio application and its React-based content editor. Your primary focus will be developing new features, enhancing existing functionality, and ensuring the reliability … Optional) GitHub or portfolio links. Note: we are currently looking at UK-based candidates for this role. Essential Skills & Experience 5+ years of professional experience as a Full-StackEngineer, ideally with senior-level responsibilities. Expert knowledge of React, including hooks, context API, and modern state management (Redux Toolkit). Strong proficiency More ❯
Engineer and cross-functional teams to translate business needs into technical solutions. Develop and maintain resilient, high-quality code that aligns with best practices in full-stack development. Assist in the design of the technical architecture and contribute to the evolution of our development practices and tooling. Participate in code reviews and pairing, provide … optimise applications for performance and scalability. Contribute to the development of applications leveraging generative and agentic AI. What you'll need 7+ years of professional experience in full-stack development, with a strong focus on React and TypeScript. Proven experience in building scalable, high-quality applications. Familiarity with backend development, preferably in Node.js and AWS. Knowledge … like Experience working with server-side rendering frameworks such as Next.js. Familiarity with agentic AI tools and infrastructure. Contributions to open-source projects or a portfolio showcasing full-stack projects. A passion for sustainability and eco-friendly technology. Package and Benefits Competitive salary, subject to experience, and share options giving you a stake in the company More ❯
SeniorFullStackEngineer - Award-Winning Digital Consultancy Remote First - £350/£400 rate - Outside IR35 Join a top-tier digital consultancy that transforms complex challenges into seamless tech solutions for industry leaders. With global reach and a culture celebrated as a "Great Place to Work" in both the UK and India … this organisation blends cutting-edge tech with an exceptional team ethos. The Opportunity: We're looking for a SeniorFullStackEngineer to play a key role in delivering end-to-end technical solutions using modern technologies like React, Node.js, TypeScript , and Azure or AWS . You'll collaborate closely with clients More ❯