51 to 75 of 90 Senior Full-Stack Engineer Jobs in London

At a Glance Capsa is an AI platform that accelerates due diligence and deepens insights for Private Equity funds. We are hiring senior software engineers who are comfortable contributing across all layers of the application and developing features end to end. Details: Role : Senior Software Engineer - Full Stack Location : London … companies like QinetiQ and retail tech startups such as Standard AI. The entire team consists of early-stage startup veterans passionate about building exceptional products. The Role A senior software engineer at Capsa is expected to own projects and features from conception to production, working across the stack to deliver improvements to our AI … will have a direct impact on its success. Have the opportunity for fast career growth. Enjoy yourself! Apply if: You have 4+ years of experience as a software engineer in a venture backed startup or top tech firm. You have taken entire products or features from ideation to production and you've measured their impact. You have experience More ❯

the job done right with minimal interferences for being productive. Linear GitHub Notion Sentry Slack New Relic The ideal profile is a Senior Full Stack Engineer that enjoys building products 0 to 1, you will get to build AI tools that help with the biggest inefficiencies in mobility industry today. This is … you will get to do here at Papaya. 30 min informal intro chat with the CTO 60 min technical pairing exercise with a real world problem with an engineer (No home work) 45 min cultural fit with our CEO Be part of a defining and fast-growing early-stage start-up with a strong bank of clients, backed More ❯

which you can use to 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 the 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 us in curating a codebase to be proud of, driving for quality, maintainability and testability More ❯

which you can use to 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 the 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 us in curating a codebase to be proud of, driving for quality, maintainability and testability More ❯

which you can use to 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 the 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 us in curating a codebase to be proud of, driving for quality, maintainability and testability More ❯

which you can use to 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 the 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 us in curating a codebase to be proud of, driving for quality, maintainability and testability More ❯

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 in January 2025, Ocean Orchestra aims to be a generational More ❯

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 in January 2025, Ocean Orchestra aims to be a generational More ❯

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 in January 2025, Ocean Orchestra aims to be a generational More ❯

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 in January 2025, Ocean Orchestra aims to be a generational More ❯

Senior Full Stack Engineer (Backend-leaning) - High-Growth eCommerce Platform London/Hybrid (1 day per week) · c £80,000 + Share Options · VC-backed Series A Startup 🚫 This company is unable to offer visa sponsorship at this time Shape the Architecture of a High-Growth eCommerce Platform We’re working with … eCommerce space that is scaling fast and working with some of the most recognisable fashion brands globally. They’re looking for a Senior Full Stack Engineer (backend-leaning) to take ownership of architecture, data flows, and complex integrations powering a platform used by millions. This isn’t about tweaking themes, it’s … engineers who want to shape tech foundations pre-scale. Interview Process 30-min culture & tech fit conversation 60–90 min technical scenario interview (no whiteboarding) Offer Ideal for senior full stack or backend engineers with TypeScript/React/AWS experience who want to shape architecture at a growing, product-led company. More ❯

Senior Full Stack Engineer (Backend-leaning) - High-Growth eCommerce Platform London/Hybrid (1 day per week) · c £80,000 + Share Options · VC-backed Series A Startup 🚫 This company is unable to offer visa sponsorship at this time Shape the Architecture of a High-Growth eCommerce Platform We’re working with … eCommerce space that is scaling fast and working with some of the most recognisable fashion brands globally. They’re looking for a Senior Full Stack Engineer (backend-leaning) to take ownership of architecture, data flows, and complex integrations powering a platform used by millions. This isn’t about tweaking themes, it’s … engineers who want to shape tech foundations pre-scale. Interview Process 30-min culture & tech fit conversation 60–90 min technical scenario interview (no whiteboarding) Offer Ideal for senior full stack or backend engineers with TypeScript/React/AWS experience who want to shape architecture at a growing, product-led company. More ❯

Senior Full Stack Engineer (Backend-leaning) - High-Growth eCommerce Platform London/Hybrid (1 day per week) · c £80,000 + Share Options · VC-backed Series A Startup 🚫 This company is unable to offer visa sponsorship at this time Shape the Architecture of a High-Growth eCommerce Platform We’re working with … eCommerce space that is scaling fast and working with some of the most recognisable fashion brands globally. They’re looking for a Senior Full Stack Engineer (backend-leaning) to take ownership of architecture, data flows, and complex integrations powering a platform used by millions. This isn’t about tweaking themes, it’s … engineers who want to shape tech foundations pre-scale. Interview Process 30-min culture & tech fit conversation 60–90 min technical scenario interview (no whiteboarding) Offer Ideal for senior full stack or backend engineers with TypeScript/React/AWS experience who want to shape architecture at a growing, product-led company. More ❯

Senior Full Stack Engineer (Backend-leaning) - High-Growth eCommerce Platform London/Hybrid (1 day per week) · c £80,000 + Share Options · VC-backed Series A Startup 🚫 This company is unable to offer visa sponsorship at this time Shape the Architecture of a High-Growth eCommerce Platform We’re working with … eCommerce space that is scaling fast and working with some of the most recognisable fashion brands globally. They’re looking for a Senior Full Stack Engineer (backend-leaning) to take ownership of architecture, data flows, and complex integrations powering a platform used by millions. This isn’t about tweaking themes, it’s … engineers who want to shape tech foundations pre-scale. Interview Process 30-min culture & tech fit conversation 60–90 min technical scenario interview (no whiteboarding) Offer Ideal for senior full stack or backend engineers with TypeScript/React/AWS experience who want to shape architecture at a growing, product-led company. More ❯

Join a leading global bank as a Full-Stack Engineer within their front office team. You'll help drive a multi-year transformation of their Fixed Income technology platform, building … high-performance, real-time applications that support trading workflows. Key Responsibilities Design and develop real-time, high-performance microservices to support Rates and Credit trading workflows Deliver full-stack solutions across Java, React, and TypeScript Collaborate with business stakeholders to understand trading needs and deliver impactful features Contribute to the design of scalable, event-driven, microservices More ❯

Axiom is hiring for a 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 global platforms and high-volume … ll be hands-on across the 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) to deliver reliable features. Collaborate More ❯

Axiom is hiring for a 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 global platforms and high-volume … ll be hands-on across the 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) to deliver reliable features. Collaborate More ❯

Axiom is hiring for a 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 global platforms and high-volume … ll be hands-on across the 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) to deliver reliable features. Collaborate More ❯

Axiom is hiring for a 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 global platforms and high-volume … ll be hands-on across the 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) to deliver reliable features. Collaborate More ❯

Senior Full Stack Engineer 💻 TypeScript, Next.js, Node, GCP 💂 London – Hybrid (3 days per week in the office) 💰 £80-90K + meaningful equity A fast growing deep tech start up is developing cutting edge solutions in the audio intelligence and communications space. Their products are being adopted internationally, helping teams collaborate more … effectively by delivering clear, distraction free conversations in any environment. They are now looking for a Full Stack Engineer to join their expanding engineering team. You will help shape customer facing tools and core platform features, working closely with talented engineers, product specialists, and designers. This is an opportunity to work on innovative technology … features and improvements Investigate and resolve technical issues while enhancing performance and scalability The ideal candidate (please still apply if you hit MOST) CS/STEM educated Full-stack, 50:50 or slightly Backend leaning (not Frontend leaning) Strong experience working with TypeScript across both frontend and backend Hands on experience working with databases such as More ❯

Senior Full Stack Engineer 💻 TypeScript, Next.js, Node, GCP 💂 London – Hybrid (3 days per week in the office) 💰 £80-90K + meaningful equity A fast growing deep tech start up is developing cutting edge solutions in the audio intelligence and communications space. Their products are being adopted internationally, helping teams collaborate more … effectively by delivering clear, distraction free conversations in any environment. They are now looking for a Full Stack Engineer to join their expanding engineering team. You will help shape customer facing tools and core platform features, working closely with talented engineers, product specialists, and designers. This is an opportunity to work on innovative technology … features and improvements Investigate and resolve technical issues while enhancing performance and scalability The ideal candidate (please still apply if you hit MOST) CS/STEM educated Full-stack, 50:50 or slightly Backend leaning (not Frontend leaning) Strong experience working with TypeScript across both frontend and backend Hands on experience working with databases such as More ❯

We8;re looking for a Senior Software Engineer to join our team of 10, working primarily on our web app and workplace platform. While youll be frontend-leaning, youll also act in a tech lead capacity; designing solutions that span our entire stack, including backend services, APIs, and database models. In this role, youll 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 ❯

More than 1 billion people globally live with obesity, a major leading indicator of many preventable chronic diseases such as diabetes and heart disease. Eucalyptus is the company behind Juniper, one of the world's largest weight management programs combining More ❯

Senior Full Stack Developer Hybrid (London, Cambridge, or Bristol - 3 days per week) Up to £100,000 + 5% Bonus + Benefits Are you a talented Full Stack Developer looking to work at the forefront of AI and software innovation? We're partnering with a leading international law firm that More ❯