19 of 19 Permanent Senior Full-Stack Engineer Jobs in London

Senior Full Stack Engineer – THE AI Scale-Up of 2025 | Future Unicorn Up to £125,000 plus excellent stock options London Office - 2 days a week Next.js | React | Typescript | Node Are you a product-focused Senior Full Stack Engineer who enjoys autonomy and wants … to build products from end-to-end? If so, read on... Senior Full Stack Engineer – We have been exclusively engaged by one of the most exciting tech start-ups in the UK, who are looking for Senior Full Stack Engineers as they continue to grow significantly … They believe in building fast and iterating, working closely with product and customers, to evolve their cutting-edge AI solutions. What is Senior Full Stack Engineer for them? The Senior Full Stack Engineer will have experience of building complex solutions in product-driven companies More ❯

R ole: Senior Software Engineer - Full-Stack Location: London Working Model: Hybrid 3 Days Salary: – Up to £128,000 Ready to build tech that actually means something? This team is powering the next generation of electrification — EVs, solar, batteries, heat pumps, smart devices — all connected through a platform that’s scaling fast … and rewriting the rulebook in green-energy tech. They’re growing. They’re hiring. And they want a Senior Engineer who can own problems end-to-end, think like a product person, and ship like someone who knows their craft inside out. If you want a job where you just “pick up tickets”, this isn’t … Product Engineer. Therefore, if you want ownership, modern tech, and work that actually matters? This one’s worth a serious look. Why This Role Rocks You work full-stack: TypeScript, Node, React, React Native (bonus). You ship features end-to-end — design → build → deploy → monitor. You join a proper engineering culture: smart people, no ego More ❯

Senior Software Engineer/Developer (Full Stack JavaScript) London to £100k Opportunity to progress your career in a senior, hands-on Software Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes … years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Software Engineer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof … happy to mentor more junior developers You're likely to be degree educated in Computer Science or similar tech discipline What's in it for you: As a Senior Software Engineer you will receive a competitive package: Salary to £100k 25 days holiday (increasing to 30), plus Christmas Eve Vitality healthcare plus a host of wellbeing More ❯

R ole: Senior Software Engineer - Full-Stack Location: London Working Model: Hybrid 3 Days Salary: Up to £128,000 Ready to build tech that actually means something? This team is powering the next generation of electrification EVs, solar, batteries, heat pumps, smart devices all connected through a platform thats scaling fast and … rewriting the rulebook in green-energy tech. Theyre growing. Theyre hiring. And they want a Senior Engineer who can own problems end-to-end, think like a product person, and ship like someone who knows their craft inside out. If you want a job where you just pick up tickets, this isnt it. Im looking for … fledged Product Engineer. Therefore, if you want ownership, modern tech, and work that actually matters? This ones worth a serious look. Why This Role Rocks You work full-stack: TypeScript, Node, React, React Native (bonus). You ship features end-to-end design ? build ? deploy ? monitor. You join a proper engineering culture: smart people, no ego More ❯

Senior Full Stack Engineer We are seeking a talented Senior Full Stack Software Engineer to join a leading global investment management firm in London. Paying up to 120k plus bonus per annum, you will contribute to the development, optimisation, and design of front-office … applications, collaborating with portfolio managers and product owners to create innovative and high-performance solutions. As a Senior Full Stack Software Engineer, you will play a key role in developing and delivering critical investment management tools and systems. Your expertise will be essential in ensuring the optimal performance of the firm's More ❯

Senior Full Stack Engineer Are you a pragmatic, innovative, and self-motivated problem solver with a passion for building scalable, high-performing software? We're looking for a Senior Full Stack Engineer to join a high-performing product team working on a global, high … performance to ensure fast, seamless user experiences Contribute to continuous improvement efforts, introducing new ideas and technologies What You'll Bring Proven experience as a Full Stack Engineer or similar role Expertise in React, JavaScript/TypeScript, HTML, CSS , and responsive design principles Strong understanding of Back End technologies and best practices Passion for More ❯

Senior Full Stack Engineer Are you a pragmatic, innovative, and self-motivated problem solver with a passion for building scalable, high-performing software? We're looking for a Senior Full Stack Engineer to join a high-performing product team working on a global, high … performance to ensure fast, seamless user experiences Contribute to continuous improvement efforts, introducing new ideas and technologies What You'll Bring Proven experience as a Full Stack Engineer or similar role Expertise in React, JavaScript/TypeScript, HTML, CSS , and responsive design principles Strong understanding of Back End technologies and best practices Passion for More ❯

Job Title: Senior Software Engineer Location: London (Hybrid: 2-3 days/week in office) Contract Type: Permanent Salary: up to £100,000(DOE) About the Role We're looking for a skilled and experienced Senior Software Engineer to join a fast-paced, product-focused team building innovative technology that delivers real … the stack, with opportunities to specialise or broaden your scope Essential Experience Proven ability to define and deliver long-term technical direction in ambiguous environments Full-stack development experience, with ownership of technical decisions and outcomes Experience designing and deploying scalable, observable, and maintainable systems Familiarity with microservices architecture (synchronous and asynchronous) Strong experience More ❯

Job Title: Senior Software Engineer Location: London (Hybrid: 2-3 days/week in office) Contract Type: Permanent Salary: up to £100,000(DOE) About the Role We're looking for a skilled and experienced Senior Software Engineer to join a fast-paced, product-focused team building innovative technology that delivers real … the stack, with opportunities to specialise or broaden your scope Essential Experience Proven ability to define and deliver long-term technical direction in ambiguous environments Full-stack development experience, with ownership of technical decisions and outcomes Experience designing and deploying scalable, observable, and maintainable systems Familiarity with microservices architecture (synchronous and asynchronous) Strong experience More ❯

Role: Senior Full-Stack Engineer Industry: B2B SaaS Company Size: Under 150 Funding: Series A Salary: £90,000 - £110,000 basic Bonus: £10,000 Wedo has partnered with a B2B SaaS bases Series A start-up who’s built an AI KYC product which is impacting millions of people on a global … scale. We’re looking for a Senior Full Stack Developer which is front end leaning and an expert in React. We need engineers who can do more than write clean code. We’re looking for people who think, communicate, collaborate, and grow themselves and others around them. We need Engineers who can push product … Then Technology) Stage 1 – Behavioural Interview Deep dive into ownership, communication, conflict, self-awareness. Stage 2 – Technical: Front-End Leaning (45 mins, Zoom) With Lead FE + Staff Engineer Focus: React, TypeScript, product-thinking. Final Stage – CTO Conversation Alignment, motivation, scaling behaviours, team contribution. Package £100–£110k 10% cash bonus £1,000 wellness & development allowance Trust-based unlimited More ❯

R ole: Senior Software Engineer - Full-Stack Location: London Working Model: Hybrid 3 Days Salary: Up to £128,000 Ready to build tech that actually means something? This team is powering the next generation of electrification EVs, solar, batteries, heat pumps, smart devices all connected through a platform thats scaling fast and More ❯

we are changing the way advertisers understand impact and how consumers shape the stories they care about. Better measurement. Better growth. ROLE SUMMARY We are looking for a senior full-stack product engineer with experience taking ownership of projects, code, database architecture, and scalability. You will need to be proactive, keen to More ❯

of projects and gain exposure to technologies including Java, Kotlin, NodeJS, Spring Boot, RESTful microservices, React, NoSQL databases and cloud platforms. Java Full Stack Engineer - Consultant/Senior Consultant Salary: £45,000-£70,748 Base locations: London, Manchester or Glasgow (Hybrid working) Organisation : Global IT Consultancy Are you a passionate Java Full Stack Engineer looking to build modern, impactful digital solutions across a range of transformation programmes? This is an opportunity to join a dynamic, fast-growing engineering community where you'll work with cutting-edge technologies and deliver meaningful outcomes for clients across the UK. About the Role As a Java Full Stack Engineer, you'll be responsible for designing, building and delivering high-quality digital products that solve complex business challenges. You'll work closely with cross-functional teams, applying engineering best practice, innovation and a consultative mindset to shape solutions from end to end. You'll work on a wide variety of projects and gain exposure to More ❯

Senior Full Stack Engineer – AI Startup – Up to 150k 🚀🧠 💰 Salary: £80,000 - £150,000 + meaningful equity 🏙️ Location : London, hybrid 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) 📈 Team size: 27 heads Our y-combinator backend client are building an elite engineering team within the AI space. The … Understand the working dynamics of a fast paced start-up If this role sounds like it could be of interest, apply now! Senior Full Stack Engineer – AI Startup – Up to 150k More ❯

An exciting opportunity for an experienced Full-Stack Engineer to help transform a major Fixed Income front-office technology landscape. You'll architect and deliver high-performance, real-time React applications that support trading workflows, working closely with stakeholders to shape a scalable, future-ready platform. Key … Responsibilities: Design and develop modern, real-time React/Java applications for trading workflows Work closely with engineers to build robust, scalable, and low-latency systems Lead full-stack solution design, with a focus on backend performance, reliability, and system integration Translate business and technical requirements into cohesive system architectures Promote engineering excellence, modern development practices … in backend development, ideally with Java, REST APIs, and messaging frameworks Deep understanding of architecture and system design, including distributed and low-latency systems Ability to drive full-stack solutions, with a strong backend focus and solid UI fundamentals Demonstrated experience within a Rates or broader Fixed Income trading environment Strong appreciation for system-level design More ❯

developing a clear path forward in a quest to try the as yet untried, here is the opportunity. What You Will Bring Full-stack engineer with experience in designing and developing robust, scalable, and maintainable applications applying Object Oriented Design principles Knowledge and experience of Java development using Java, Java 8+ (or later), and More ❯

of projects and gain exposure to technologies including Java, Kotlin, NodeJS, Spring Boot, RESTful microservices, React, NoSQL databases and cloud platforms. Java Full Stack Engineer - Consultant/Senior Consultant Salary: £45,000-£70,748 Base locations: London, Manchester or Glasgow (Hybrid working) Organisation : Global IT Consultancy Are you a passionate Java Full More ❯

we're not just envisioning the future of digital assets. We're actively building it. Mission statement We are seeking a Full Stack Web Engineer with a strong sense of UI/UX design and a proven track record in the financial services industry. Experience in the crypto or digital asset domain is highly More ❯

Benefits 39 days holiday 9% pension contribution Stock Options This is your chance to perform the job you love and make a difference in society whilst doing it! Help this one-of-a-kind Social Good platform change the world More ❯