126 to 150 of 291 Full Stack Engineer Jobs in London

Role : x1 Lead Backend Engineer & x1 Senior Full Stack/Backend Engineer Salary: Senior - up to 105k | Lead - up to 125k Location : East/Central London (x4 days per week onsite) Tech stack includes : NodeJS, TypeScript, React, PostgreSQL, GraphQL … with a profitable Tech4Good startup company, their mission - making high quality mental health support more accessible! They're recruiting for x2 Engineers - Senior Full Stack/Back End + Lead Backend Essentials: 5+ years backend experience - Typescript/Node preferred but not essential. STEM background Experience ...

Role: Senior Software Engineer Location: London Area, United Kingdom (Hybrid) Employment Type: Full-time Seniority: Senior Level Salary: £85,000 + Bonus Are you a highly experienced Software Engineer ready to take ownership of complex systems and drive engineering excellence in a fast-paced … environment? We're looking for a Senior Software Engineer to play a key role in designing and delivering scalable, high-quality software solutions. You'll operate at the heart of engineering-leading technical decisions, mentoring team members, and shaping architecture across modern, cloud-based platforms. This ...

Founding Engineer (Full Stack/Product Engineer) – London – up to £125k We’re working with an incredibly ambitious start-up who are building a platform that helps organisations securely access and automate the web-based tools they rely on every … hiring for a Founding Engineer as they continue to grow. Their product is already used by large, global organisations to improve security, reduce manual work, and give teams better control over how access to systems is managed. As a Founding Engineer, you’ll play ...

cutting-edge, data-intensive, event-driven systems that power real-time market data, analytics, and execution workflows — and they’re looking for a Full-Stack Python Engineer to join them. 💻 What you’ll be working on: • Designing, developing, and optimising full-stack ...

network of distributed, software-defined factories designed to help hardware companies iterate faster and scale production efficiently. They are now hiring a Full Stack Software Engineer to help build and scale their proprietary factory operating system. Key Responsibilities: Architect, design, and develop critical systems … supporting factory automation, real-time data processing, and operational workflows. Own full-stack development across infrastructure, backend services, frontend interfaces, and monitoring tools. Work closely with leadership and factory-floor teams to identify operational bottlenecks and translate them into impactful software solutions. Deploy and iterate ...

Product Engineer (Full Stack) – AI SaaS Startup - London (SE1) - £50k to £65k Avanti Recruitment is working with a high-growth London-based SaaS startup building an AI-driven platform used by commercial teams to manage and close complex deals. They’re looking … Product Engineer who genuinely cares about what gets built, how it works, and the impact it has on users. Why this role stands out This is a proper product engineering environment Engineers own features end-to-end You’ll work directly with product and design You’re encouraged ...

Senior Software Engineer Reference: BH-377p Working Hours: Full-time Job Type: Permanent Salary: Competitive Location: Remote or Hybrid - London office About The Client: Our client is a rapidly growing Infrastructure-as-a-Service (IaaS) provider driving digital transformation. Key Responsibilities: Architecture & System Design Design … scalable backend services and product components. Make sound architectural decisions across APIs, services, and data layers. Lead delivery from design through production operation. Full-Stack Development Build backend systems primarily in Python. Develop secure, performant APIs supporting AI workflows. Contribute to modern web applications where required ...

Software Engineer | Hybrid/Remote | UK | 45-65k The Sunday Times Best Places to Work. Plus FT Award! This isn't your typical "we're changing the world" startup waffle. These folks are actually doing something interesting – building an AI-powered tool that is a market leader … every day – so no pressure, but also... proper impact. The Role (The Actual Work Bit) You'll be a proper full-stack engineer here. None of this "you'll exclusively work on one microservice in the corner" nonsense. You'll be: Building features ...

Lead Product Engineer Hybrid (2 days in office) | Central London … + Equity Our client processes terabytes of climate and cloud data. Cutting edge infrastructure, looking for a strong frontend leaning engineer full-stack engineer with the product instinct and architectural depth to take a powerful platform and make it feel as impressive ...

Product Engineer - London (Victoria) - Hybrid - 3 days in office, 2 WFH · Permanent Our client is a newly launched, VC-backed tech business operating in a highly traditional professional services sector. Founded by repeat founders with a proven track record of building and scaling high-growth consumer businesses, they … review documents, manage approvals and oversee transactions Designing clear, logical interfaces for complex processes and making the complicated feel simple Working across the full stack, from React/Next.js frontend through to the workflow engine and state machine underneath Contributing to AI agent pipelines handling document ...

Senior Full Stack Developer/Tech Lead Hands-on | Mission-led organisation | Remote-first Remote first, with onsite days in London 1-2 times per month 35-hour working week, 10% pension 18-24 month FTC, with potential to go permanent … looking for a hands-on engineer who can lead from the front while shaping long-term technical strategy. The organisation has recently completed a digital transformation, including a new website. A CRM migration is about to begin, and new tools and platforms will be built, including ...

Senior Full Stack Developer/Tech Lead Hands‐on | Mission‐led organisation | Remote‐first Remote first, with onsite days in London 1–2 times per month 35‐hour working week, 10% pension 18–24 month FTC, with potential to go permanent … looking for a hands‐on engineer who can lead from the front while shaping long‐term technical strategy. The organisation has recently completed a digital transformation, including a new website. A CRM migration is about to begin, and new tools and platforms will be built, including ...

C# Software Engineer/Full Stack Developer (.Net AWS AI) London/WFH to £80k Do you have experience across the full tech stack within a finance environment? You could be progressing your career as a C# Software Engineer at a boutique Asset Manager that specialise in Fixed Income markets and have multi-billion dollars under management click apply for full job details ...

Flutter Software Engineer About us: Tewke is a growing startup on a mission to change the way people live within their homes, empowering them to automatically save energy and improve their living environment. Tewke is revolutionising the way homes operate by focusing on sustainable and efficient living. … with version control software from providers such as GitHub or GitLab - Write clean, efficient, and reusable code Nice to have: - Experience as a full stack engineer to work across cloud and app infrastructure - Experience publishing apps in the Apple App Store and Google Play ...

Senior to Principal Software Engineer | Mission-led Fintech - Hybrid London Here’s the thing. If you’re a Senior, Staff, or Principal Software Engineer who wants serious impact without the ego-fest, this will probably speak to you. I’m partnering with a fast-growing fintech … Proper ownership. Fast cycles, low ceremony, and room to shape architecture while mentoring others. What you’ll work with as a Staff Software Engineer Stack: Python, TypeScript, React, Svelte, PostgreSQL, Snowflake, AWS. Setup: Cross-functional squads that care about outcomes, not ticket-ticking. You’ll improve ...

Product Engineer | YC-backed Stealth Mode We are partnering with a YC-backed startup in stealth mode, founded by experienced second-time founders, on a mission to transform a critical industry using AI 💰 Salary up to £150k + equity 🌍 30 days holiday + 28 days work from anywhere … products designed to solve complex, real-world problems where reliability, speed, and user experience truly matter What you will do: 🛠️ Build and own full stack systems powering end-to-end workflows 💡 Collaborate closely with users to deeply understand problems and improve processes ⚡ Ship high-quality products ...

lives in ill health than men, representing a $1 trillion annual lost opportunity globally. Hesta is changing that, and they want a brilliant engineer to help build it. Fresh from closing their seed round, they're hiring their first Founding Engineer. You'll be the technical backbone … rare chance to join a mission-driven healthtech startup at day zero and own the entire technical build. You'll work across the stack — frontend, backend, infrastructure — while embedding clinical-grade reliability, data privacy, and AI capabilities from the ground up. What you'll own: Build ...

build the knowledge, mastery, and confidence required for peak performance, supporting every learner through every major academic milestone. Your Role As the Lead Engineer you will lead technical delivery on our core platform whilst continuing to code yourself. You'll build and manage a small high-performing engineering … What you'll bring Experience & Technical Skills 2–3 years as a strong Senior Engineer, or 4+ years as a solid full-stack engineer ready to step into leadership Mastery of TypeScript/React and Node.js/NestJS (or equivalent stack ...

.NET Developer, CMS, Sitecore, Optimizely, Umbraco - London (Tech stack: .NET Developer, CMS, Sitecore, Optimizely, Umbraco, .NET 10.0, C# 14, Angular 21, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Established in the 1990s our client is one the fast growing technologies brands ...

.NET Developer, CMS, Sitecore, Optimizely, Umbraco - Remote (Tech stack: .NET Developer, CMS, Sitecore, Optimizely, Umbraco, .NET 10.0, C# 14, Angular 21, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is a leading digital agency powerhouse, delivering transformative online experiences ...

.NET Developer (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure SQL, .NET MAUI, GitHub Copilot, Docker, Kubernetes, Microservices architecture, Angular 21, Vue.js, TypeScript, Programmer, Full Stack Engineer, Architect, .NET Developer) We have several fantastic new roles for .NET Developer ...

TwentyAI are supporting an ambitious, Series B, fast-growing AI SaaS technology company. They are looking for a growth engineer to drive ARR, supporting business with the next stage of growth. There is a requirement to be onsite, joining a collaborative team 4 Days a week in London. … What you'll do: As a Growth Engineer, you will own your experiments end-to-end—from idea to execution—using your full-stack skills to improve product-led growth. Analyse data, strategise, and implement solutions in a fast-paced, collaborative environment that values ...

.NET Developer, C# 14 - Global Technology Brand - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET, C# 14, WPF, React, Angular 21, Microservices, Azure, ASP.NET Core Web API, Entity Framework, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Our clients fascinating story dates ...

.NET Developer, Azure - Formula One Racing Team - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure SQL, .NET MAUI, GitHub Copilot, Docker, Kubernetes, Microservices architecture, Angular 21, Vue.js, TypeScript, Programmer, Full Stack Engineer, Architect, .NET Developer) Established ...

.NET Architect - Social Messaging Platform - London (Tech stack: .NET Architect, .NET 10.0, ASP.NET Core, C# 14, Azure SQL, .NET MAUI, GitHub Copilot, Docker, Kubernetes, Microservices architecture, Angular 21, Vue.js, TypeScript, Programmer, Full Stack Engineer, Developer, .NET Architect) In 2012 our client launched ...