1 to 25 of 31 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 ...

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 ...

Senior Full Stack Engineer (Python/React) Fast-Growing Sports AI Company KEY POINTS Hybrid role based in London Build real time, data rich web applications for the sports industry Full ownership of the stack, from Next.js front … you. THE ROLE, SENIOR FULL STACK ENGINEER As a Senior Full Stack Engineer, you will own the full product lifecycle, from building intuitive, performant web interfaces in Next.js and React through ...

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 ...

Senior Software Engineer (React, TS, Node, Postgres, Redis) A well-backed core business systems tech scale-up based in Central London, building AI-powered workforce software for fast-growing businesses. Strong product culture, lean team, and a genuine focus on solving real problems. The Role … architecture decisions and raise the engineering bar within the team. Requirements Strong JavaScript fundamentals (non-negotiable baseline). TypeScript and React experience Full-stack capable at senior level, comfortable across both front end and back end. Experience with a mainstream cloud platform (GCP preferred ...

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 ...

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 ...

Senior Software Engineer (React, TS, Node, Postgres, Redis) A well-backed core business systems tech scale-up based in Central London, building AI-powered workforce software for fast-growing businesses. Strong product culture, lean team, and a genuine focus on solving real problems. The Role … senior engineer positions available click apply for full job details ...

Senior C# Full Stack Engineer FULLY ONSITE: London Salary: £100,000 to £130,000 This is an opportunity for a senior engineer to take ownership of complex systems and contribute to the direction of a growing engineering function. ...

inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Senior Software Engineer, Full Stack - AI Fitch Group is currently seeking a Senior Software Engineer … build ML/AI solutions (classical ML + modern deep learning/LLM approaches) aligned to product outcomes. Demonstrate proficiency in full-stack technologies for enterprise-scale websites and applications. Work as part of an agile team in design, development, debugging, and deployment efforts while addressing ...

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 ...

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 ...

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#/ ...

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 ...

variety of technology such as (but not exhaustively) NodeJS, Java, Kotlin, Spring boot framework, RESTful microservices, NoSQL databases. In your role as a Senior Consultant, you will also be expected to play a role in leading our Engineering community and projects. This will involve managing team members, engaging ...

Corgi Insurance is looking for a Senior Full Stack Software Engineer in London. This role involves designing and developing the systems crucial to their insurance operations. You will own significant technical projects, collaborating closely with leadership and product teams. The ideal candidate ...

Alumni Ventures is seeking a Senior Full Stack Software Engineer to lead the design and development of systems that power their insurance companies. This pivotal role requires a minimum of 5 years’ experience and strong software engineering fundamentals. Located in London ...

design. All underpinned by technology created with purpose. YOUR ROLE Join our team as a key player in building cutting-edge GenAI full-stack applications. In this role, you will: Collaborate with the team to develop GenAI proof-of-concepts (POCs) for clients using technologies like ...

Harrington Starr is seeking a Full Stack Engineer to join an AI-first technology company based in NYC. You will take ownership across the full stack, developing scalable backend services using Node.js and TypeScript, and building modern product interfaces with ...

Ocean Orchestra - Senior Full Stack Engineer At a glance : 💰 £75–95K + equity 🌍 Climate tech with global impact 🛠 Early engineer, greenfield build 🏠 Remote-first UK + London office a few days 🎯 Autonomy, ownership, and direct impact About the Company Founded ...

high-growth international Fintech building at the intersection of crypto and traditional finance, looking for a proven Senior Full Stack Engineer to help scale its core platforms. This is a fantastic opportunity to work on cutting-edge technology, building products that support … stack, shaping architecture and delivering scalable solutions used by clients worldwide. The Role As Senior Full Stack Engineer, you will: Design, build, and maintain scalable platforms using modern frameworks and tools. Work across backend (Node, SQL) and frontend (Angular ...

make soime weeks 2 days a week from home. Please also note - sponsorship is not an option here unfortunately. The role As a Senior Software Engineer, you will: Understand complex business problems then propose and implement technical solutions Have input into the architecture, working closely with … Head of Technology and other senior team members Work with other engineers and the business to improve user experiences Bring your experience and enthusiasm to our engineering culture Promote excellence with technical mentoring, feedback, and code reviews Participate in planning sessions, retrospectives, stand-ups and demos Join ...

Corgi Insurance Corgi is building an AI financial infrastructure company Senior Full Stack Software Engineer £140K - £200K GBP • London, England, GB Job type Full-time Role Engineering, Full stack Experience 6+ years Visa US citizen/… about talent density, and hire people who want to solve difficult problems with unusually high ownership. About the Role We’re hiring a Senior Full Stack Software Engineer to lead the design and development of the systems that power our insurance companies ...

This job is with Capgemini, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. At Capgemini Invent, we believe difference ...

more effective, accessible, and science-driven. Role Description We’re looking for a full-time Senior Full Stack Engineer with exceptional frontend and product instincts to help shape the next generation of our customer experience. This is not a “ticket … Contributing to technical and product direction across frontend and backend architecture What We’re Looking For: 5+ years of experience as a full-stack or frontend-focused engineer Strong understanding of modern frontend development and product-focused UI/UX Highly proficient in TypeScript ...