Full Stack Engineer Jobs in London

601 to 625 of 1,161 Full Stack Engineer Jobs in London

GraphQL Engineer

west london, south east england, united kingdom
Hybrid / WFH Options
Staffworx Limited
GraphQL Full Stack Engineer - TypeScript | Cloud-Native | Contract (Outside IR35) Location: West London (Hybrid - 2 days/week on site) Contract: 6 months initial (extensions highly likely) Start: ASAP Eligibility: UK-based candidates only Rate: Market rates GraphQL-focused Software Engineer who can design, implement, and evolve high-performing APIs that scale. More ❯
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GraphQL Engineer

london, south east england, united kingdom
Hybrid / WFH Options
Staffworx Limited
GraphQL Full Stack Engineer - TypeScript | Cloud-Native | Contract (Outside IR35) Location: West London (Hybrid - 2 days/week on site) Contract: 6 months initial (extensions highly likely) Start: ASAP Eligibility: UK-based candidates only Rate: Market rates GraphQL-focused Software Engineer who can design, implement, and evolve high-performing APIs that scale. More ❯
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Principal Software Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Computer Futures
Principal Software Engineer - Lead the Future of UK GovTech Innovation Up to £100,000 + Premium Benefits Package Remote-First | Just 1 Day Onsite Every 2 Weeks SC Clearable | British Citizens Only Where Technology Meets Purpose Are you ready to lead engineering efforts that directly impact national security, public services, and digital transformation across the UK? This is … just a job-it's a chance to build technology that matters , in a space where innovation meets mission-critical delivery. We're looking for a Principal Software Engineer to join a high-performing team at the forefront of UK GovTech. You'll architect secure, scalable platforms, mentor elite engineers, and shape technical strategy across programmes that serve … millions of citizens and protect national interests. Your Mission As a Principal Engineer, you'll be a technical leader, strategic thinker, and hands-on problem solver. You'll work closely with delivery teams, stakeholders, and government partners to ensure solutions are robust, secure, and future-proof. What You'll Be Doing: Architect cloud-native platforms using modern design More ❯
Employment Type: Full-Time
Salary: £70,000 - £100,000 per annum
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Founding Engineer

City of London, London, United Kingdom
HartleyCo
Founding Engineer | YC-Backed | London | £80,000 - £120,000 We're working with a YC-backed startup in London that's just closed a multimillion-pound seed round. They're building the AI platform that's transforming high-stakes litigation for top US law firms. Top UK and US law firms use their platform to handle high-stakes … accuracy, and speed aren't negotiable. They're hiring their first engineer. A true founding team member who wants to build, ship, and own. What you'll do: Full-stack work across Python backend, Next.js frontend, PostgreSQL, LLMs, and Azure infrastructure. You'll talk directly to customers (major law firms), understand what they need, then build … you if: You're a builder with high urgency who ships fast and iterates You're comfortable owning problems from customer conversation to production deploy You can work full-stack (Python + Node.js) but probably lean backend-heavy You're excited about AI and tackling hard, real-world problems You have strong product judgment and love More ❯
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Founding Engineer

London Area, United Kingdom
HartleyCo
Founding Engineer | YC-Backed | London | £80,000 - £120,000 We're working with a YC-backed startup in London that's just closed a multimillion-pound seed round. They're building the AI platform that's transforming high-stakes litigation for top US law firms. Top UK and US law firms use their platform to handle high-stakes … accuracy, and speed aren't negotiable. They're hiring their first engineer. A true founding team member who wants to build, ship, and own. What you'll do: Full-stack work across Python backend, Next.js frontend, PostgreSQL, LLMs, and Azure infrastructure. You'll talk directly to customers (major law firms), understand what they need, then build … you if: You're a builder with high urgency who ships fast and iterates You're comfortable owning problems from customer conversation to production deploy You can work full-stack (Python + Node.js) but probably lean backend-heavy You're excited about AI and tackling hard, real-world problems You have strong product judgment and love More ❯
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Founding Engineer

london, south east england, united kingdom
HartleyCo
Founding Engineer | YC-Backed | London | £80,000 - £120,000 We're working with a YC-backed startup in London that's just closed a multimillion-pound seed round. They're building the AI platform that's transforming high-stakes litigation for top US law firms. Top UK and US law firms use their platform to handle high-stakes … accuracy, and speed aren't negotiable. They're hiring their first engineer. A true founding team member who wants to build, ship, and own. What you'll do: Full-stack work across Python backend, Next.js frontend, PostgreSQL, LLMs, and Azure infrastructure. You'll talk directly to customers (major law firms), understand what they need, then build … you if: You're a builder with high urgency who ships fast and iterates You're comfortable owning problems from customer conversation to production deploy You can work full-stack (Python + Node.js) but probably lean backend-heavy You're excited about AI and tackling hard, real-world problems You have strong product judgment and love More ❯
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Founding Engineer

london (city of london), south east england, united kingdom
HartleyCo
Founding Engineer | YC-Backed | London | £80,000 - £120,000 We're working with a YC-backed startup in London that's just closed a multimillion-pound seed round. They're building the AI platform that's transforming high-stakes litigation for top US law firms. Top UK and US law firms use their platform to handle high-stakes … accuracy, and speed aren't negotiable. They're hiring their first engineer. A true founding team member who wants to build, ship, and own. What you'll do: Full-stack work across Python backend, Next.js frontend, PostgreSQL, LLMs, and Azure infrastructure. You'll talk directly to customers (major law firms), understand what they need, then build … you if: You're a builder with high urgency who ships fast and iterates You're comfortable owning problems from customer conversation to production deploy You can work full-stack (Python + Node.js) but probably lean backend-heavy You're excited about AI and tackling hard, real-world problems You have strong product judgment and love More ❯
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AWS Engineer (Python)

London, United Kingdom
clinics down. We unify a patients complete history of care, driving better billing and improving patient outcomes. From MVP to first enterprise contract in just 5 months Tech Stack snapshot: TypeScript, Node, Google Cloud (GCP), Svelte, Native iOS Cracked engineer (grit Full-stack fluent, or hungry to get there fast Bias to … own problems, ship often Product mindset: understand why before building what Based in London (we have a flex-hybrid office model - 2/3 days in Aldgate East) Full ownership of design & delivery - from idea to shipped product Opportunity to work across the full stack and shape the product from the ground up Vitality More ❯
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GraphQL Engineer

West London, UK
Hybrid / WFH Options
Staffworx Limited
GraphQL Full Stack Engineer - TypeScript | Cloud-Native | Contract (Outside IR35) Location: West London (Hybrid - 2 days/week on site) Contract: 6 months initial (extensions highly likely) Start: ASAP Eligibility: UK-based candidates only Rate: Market rates GraphQL-focused Software Engineer who can design, implement, and evolve high-performing APIs that scale. More ❯
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Senior Software Engineer

City Of London, England, United Kingdom
Digital Waffle
Senior Software Engineer | AI, Artificial Intelligence Hybrid role in Soho £80-120k depending on experience We’re on a mission to reinvent how AI understands people — not through CVs or data points, but through story, reasoning, and curiosity. We’re building systems that listen, interpret, and understand why people say what they say. The goal? Create AI … that perceives human potential , not just human input. If you love working on ideas that feel impossible — keep reading. The Role We’re looking for an engineer who blends technical depth with creative instinct . You’ll work directly with founders to shape the intelligence layer behind a new generation of human-aware AI — from LLM reasoning and … semantic understanding to full-stack experiences that feel emotionally intelligent. If you’ve worked in a disruptive industry and built something brand new — not just improved what already existed — this will feel familiar. What You’ll Be Building Core intelligence systems: LLM orchestration, semantic reasoning, and voice understanding Fast, intuitive interfaces that make human-AI interaction More ❯
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Artificial Intelligence Engineer

london, south east england, united kingdom
Digital Waffle
AI Software Engineer Hybrid role in Soho £80-120k depending on experience We’re on a mission to reinvent how AI understands people — not through CVs or data points, but through story, reasoning, and curiosity. We’re building systems that listen, interpret, and understand why people say what they say. The goal? Create AI that perceives human … potential , not just human input. If you love working on ideas that feel impossible — keep reading. The Role We’re looking for an engineer who blends technical depth with creative instinct . You’ll work directly with founders to shape the intelligence layer behind a new generation of human-aware AI — from LLM reasoning and semantic understanding to … full-stack experiences that feel emotionally intelligent. If you’ve worked in a disruptive industry and built something brand new — not just improved what already existed — this will feel familiar. What You’ll Be Building Core intelligence systems: LLM orchestration, semantic reasoning, and voice understanding Fast, intuitive interfaces that make human-AI interaction feel alive Rapid More ❯
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Artificial Intelligence Engineer

london (city of london), south east england, united kingdom
Digital Waffle
AI Software Engineer Hybrid role in Soho £80-120k depending on experience We’re on a mission to reinvent how AI understands people — not through CVs or data points, but through story, reasoning, and curiosity. We’re building systems that listen, interpret, and understand why people say what they say. The goal? Create AI that perceives human … potential , not just human input. If you love working on ideas that feel impossible — keep reading. The Role We’re looking for an engineer who blends technical depth with creative instinct . You’ll work directly with founders to shape the intelligence layer behind a new generation of human-aware AI — from LLM reasoning and semantic understanding to … full-stack experiences that feel emotionally intelligent. If you’ve worked in a disruptive industry and built something brand new — not just improved what already existed — this will feel familiar. What You’ll Be Building Core intelligence systems: LLM orchestration, semantic reasoning, and voice understanding Fast, intuitive interfaces that make human-AI interaction feel alive Rapid More ❯
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Full-Stack React Developer

City of London, London, England, United Kingdom
Eligo Recruitment
Senior Software Engineer to help lead the technical evolution of this critical platform. The Opportunity You’ll join a growing team building scalable, secure systems using React , Python , and AWS , helping to drive our mission to cut the impact of flooding in half.This is more than just building products — it’s about delivering real-world impact through technology. … What You’ll Do Design, build, and deploy full-stack features across a modern cloud-native architecture Architect performant, secure systems that scale to meet growing demand Lead technical projects with high business impact, from concept to delivery Collaborate cross-functionally with Product, Data Science, and Operations teams Mentor developers, promote best practices, and improve engineering … workflows Shape technical strategy and contribute to long-term system improvements Drive code quality, observability, and resiliency across services Tech Stack Frontend : React, JavaScript/TypeScript Backend : Python (FastAPI, Flask, or Django), ideally with geospatial data processing Cloud : AWS (Lambda, ECS, RDS, S3, API Gateway, etc.) DevOps : Docker, CI/CD pipelines, Git Orchestration : Airflow or similar tools More ❯
Employment Type: Full-Time
Salary: £90,000 per annum
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Senior Software Support Engineer

City of London, London, United Kingdom
NearTech Search
Senior Software Support Engineer Hybrid – London £70,000 - £90,000 A fast growing eCommerce SaaS company in London who have a global customer base and extremely innovative product suite are in need of an experienced Software Support Engineer. This will be a hugely impactful role, working with Ruby on rails & JavaScript software applications, AWS cloud environments and Linux … Engineers & Architects. NearTech have helped this company with several key hires this year as they continue to grow. The Opportunity We’re looking for a Senior Software Support Engineer to make our client’s product dependable, intuitive, and frustration-free for their global customers. This is not a maintenance … role! You’ll lead improvements across our entire system — backend, frontend, and infrastructure — to fix friction points, enhance usability, and make our platform bulletproof. If you’re a full-stack engineer (Ruby on Rails, JavaScript, AWS) who enjoys solving complex issues, improving processes, and making large systems feel effortless to users, you’ll thrive More ❯
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Senior Software Support Engineer

London Area, United Kingdom
NearTech Search
Senior Software Support Engineer Hybrid – London £70,000 - £90,000 A fast growing eCommerce SaaS company in London who have a global customer base and extremely innovative product suite are in need of an experienced Software Support Engineer. This will be a hugely impactful role, working with Ruby on rails & JavaScript software applications, AWS cloud environments and Linux … Engineers & Architects. NearTech have helped this company with several key hires this year as they continue to grow. The Opportunity We’re looking for a Senior Software Support Engineer to make our client’s product dependable, intuitive, and frustration-free for their global customers. This is not a maintenance … role! You’ll lead improvements across our entire system — backend, frontend, and infrastructure — to fix friction points, enhance usability, and make our platform bulletproof. If you’re a full-stack engineer (Ruby on Rails, JavaScript, AWS) who enjoys solving complex issues, improving processes, and making large systems feel effortless to users, you’ll thrive More ❯
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Senior Software Support Engineer

london, south east england, united kingdom
NearTech Search
Senior Software Support Engineer Hybrid – London £70,000 - £90,000 A fast growing eCommerce SaaS company in London who have a global customer base and extremely innovative product suite are in need of an experienced Software Support Engineer. This will be a hugely impactful role, working with Ruby on rails & JavaScript software applications, AWS cloud environments and Linux … Engineers & Architects. NearTech have helped this company with several key hires this year as they continue to grow. The Opportunity We’re looking for a Senior Software Support Engineer to make our client’s product dependable, intuitive, and frustration-free for their global customers. This is not a maintenance … role! You’ll lead improvements across our entire system — backend, frontend, and infrastructure — to fix friction points, enhance usability, and make our platform bulletproof. If you’re a full-stack engineer (Ruby on Rails, JavaScript, AWS) who enjoys solving complex issues, improving processes, and making large systems feel effortless to users, you’ll thrive More ❯
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Senior Software Support Engineer

london (city of london), south east england, united kingdom
NearTech Search
Senior Software Support Engineer Hybrid – London £70,000 - £90,000 A fast growing eCommerce SaaS company in London who have a global customer base and extremely innovative product suite are in need of an experienced Software Support Engineer. This will be a hugely impactful role, working with Ruby on rails & JavaScript software applications, AWS cloud environments and Linux … Engineers & Architects. NearTech have helped this company with several key hires this year as they continue to grow. The Opportunity We’re looking for a Senior Software Support Engineer to make our client’s product dependable, intuitive, and frustration-free for their global customers. This is not a maintenance … role! You’ll lead improvements across our entire system — backend, frontend, and infrastructure — to fix friction points, enhance usability, and make our platform bulletproof. If you’re a full-stack engineer (Ruby on Rails, JavaScript, AWS) who enjoys solving complex issues, improving processes, and making large systems feel effortless to users, you’ll thrive More ❯
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Engineer Product I

London, United Kingdom
Founding Product Engineer AI London/Hybrid up to 120,000 base + equity Our client is looking for a Founding Product Engineer to help solve one of the biggest and most complex challenges in AI. This role would suit a Product Engineer who blends strong software engineering credentials with product thinking and a … high-agency mindset. The problem they have identified has earned them serious investment and they would love a full stack engineer to join them in transforming the AI space. Impact: Ship core product used by the worlds top dev teams 4+ years of commercial software engineering experience, within startup or scaled tech environments Fullstack More ❯
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Founding Engineer

City of London, London, United Kingdom
Synthax
contract in just 5 months Multi-million-dollar client pipeline ready to onboard Backed by the world’s largest pre-seed VC - we are ready to scale! Tech Stack snapshot: TypeScript, Node, Google Cloud (GCP), Svelte, Native iOS We’re looking for: Cracked engineer (grit > specific frameworks) Full-stack fluent, or hungry … model - 2/3 days in Aldgate East) What’s on offer: Package: up to £120,000, plus meaningful equity in a fast-growing pre-seed AI startup Full ownership of design & delivery - from idea to shipped product Opportunity to work across the full stack and shape the product from the ground up Build More ❯
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Founding Engineer

London Area, United Kingdom
Synthax
contract in just 5 months Multi-million-dollar client pipeline ready to onboard Backed by the world’s largest pre-seed VC - we are ready to scale! Tech Stack snapshot: TypeScript, Node, Google Cloud (GCP), Svelte, Native iOS We’re looking for: Cracked engineer (grit > specific frameworks) Full-stack fluent, or hungry … model - 2/3 days in Aldgate East) What’s on offer: Package: up to £120,000, plus meaningful equity in a fast-growing pre-seed AI startup Full ownership of design & delivery - from idea to shipped product Opportunity to work across the full stack and shape the product from the ground up Build More ❯
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Founding Engineer

london, south east england, united kingdom
Synthax
contract in just 5 months Multi-million-dollar client pipeline ready to onboard Backed by the world’s largest pre-seed VC - we are ready to scale! Tech Stack snapshot: TypeScript, Node, Google Cloud (GCP), Svelte, Native iOS We’re looking for: Cracked engineer (grit > specific frameworks) Full-stack fluent, or hungry … model - 2/3 days in Aldgate East) What’s on offer: Package: up to £120,000, plus meaningful equity in a fast-growing pre-seed AI startup Full ownership of design & delivery - from idea to shipped product Opportunity to work across the full stack and shape the product from the ground up Build More ❯
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Founding Engineer

london (city of london), south east england, united kingdom
Synthax
contract in just 5 months Multi-million-dollar client pipeline ready to onboard Backed by the world’s largest pre-seed VC - we are ready to scale! Tech Stack snapshot: TypeScript, Node, Google Cloud (GCP), Svelte, Native iOS We’re looking for: Cracked engineer (grit > specific frameworks) Full-stack fluent, or hungry … model - 2/3 days in Aldgate East) What’s on offer: Package: up to £120,000, plus meaningful equity in a fast-growing pre-seed AI startup Full ownership of design & delivery - from idea to shipped product Opportunity to work across the full stack and shape the product from the ground up Build More ❯
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.NET Developer

City of London, London, England, United Kingdom
Hybrid / WFH Options
Noir
.NET Developer, C# - Financial Consultancy - London (Tech stack: .NET Developer, .NET 9, ASP.NET, C#, React, Angular 19, Microservices, Azure, WPF, MVVM, Prism, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) Established in the early 1970s, our client delivers cutting edge I.T solutions to banks. With over 70,000 employees in … modern consulting firm. We are seeking 4 .NET Developer to work on complex Greenfield .NET/C# software development projects within the banking arena. You will be given full project life cycle exposure and the opportunity to technically lead teams of up to 10 Consultants. The ideal .NET Developer candidates will have strong experience on the .NET framework. More ❯
Employment Type: Full-Time
Salary: £60,000 - £80,000 per annum
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.NET Developer

City of London, London, England, United Kingdom
Hybrid / WFH Options
Noir
.NET Developer, .NET 9, C# - Consultancy - London Or Surrey (Tech stack: .NET Developer, .NET 9, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) Our client is an award winning Microsoft consultancy. They specialise in delivering innovative .NET technology … .NET Developer with an extensive array of talent and expertise. .NET Developer will be given complete ownership of your business area and the opportunity to work on the full project life cycle. .NET Developer applicants should have a skill set that encompasses some or all of the following: .NET, .NET Core/ASP.NET MVC, C# and Azure SQL. More ❯
Employment Type: Full-Time
Salary: £50,000 - £80,000 per annum
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.NET Developer

City of London, London, England, United Kingdom
Hybrid / WFH Options
Noir
.NET Developer, .NET 9, C#, Agile - London (Tech stack: .NET Developer, .NET 9, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) We are pleased to announce the arrival in the UK of one of Silicon Valley's most … levels who are passionate about developing revolutionary software solutions. .NET Developer applicants should have commercial experience with: .NET, .NET Core/ASP.NET MVC, C#, Azure SQL and Agile. Full training will be provided into: .NET 9, JavaScript, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and More ❯
Employment Type: Full-Time
Salary: £40,000 - £50,000 per annum
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