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    Senior Software Engineer I — Hybrid, Full‑Stack & AI/ML

    Runna, an innovative app provider for runners, is looking for a talented Full Stack Developer to join their engineering team in London. You will be integral in architecting, building, and delivering features across their platform in a fast-paced environment. The role requires proficiency in TypeScript/JavaScript ...

    Senior Full Stack Engineer TS + Elixir + AWS | Hybrid | Equity

    A leading technology company in London is seeking a Senior Full Stack Engineer to work on innovative Greenfield projects. This role involves a 50/50 split between backend and frontend development, utilizing a tech stack that includes TypeScript, Elixir, Elm, and AWS. You will have a significant role in a small, ...

    Senior Software Engineer AI Driven Full Stack with Equity

    Prolo, a fast-growing startup in London, is seeking a Senior Software Engineer who will own the end-to-end experience of their platform. The successful candidate will lead the development of new features using Node, Python, and React while designing APIs and interfaces for AI interaction. They value product thin ...

    Angular Full Stack Engineer with UX Focus (Hybrid, London)

    Admin Please is searching for a motivated Full Stack Engineer to join our early-stage startup in Central London. In this role, you will closely collaborate with the founding team to develop user-friendly, responsive interfaces for our AI-powered productivity management tool. Ideal candidates have experience with ...

    Senior Full Stack Engineer – AI Systems (London, Hybrid, Equity)

    SR2 REC LTD is seeking a Senior Full Stack Engineer to design and build high-quality backend systems using Python and create scalable frontend architecture with React and TypeScript. The role is hybrid based in London, offering a salary of £120,000 to £140,000 plus equity. Ideal candidates are those who enjoy ta ...

    Full Stack Javascript Software Engineer in London Quant Capital

    Salary Surbiton, 30 man flat global Dev Team: £80k, Bonus- £750 training budget, Pension, Life / Health, Some Flex Working TypeScript Developers Must Have: Experience coding in JavaScript, HTML5, CSS3, Angular, React , Bootstrap, or Node.js Experience with ...

    Full Stack Engineer — AI First, End to End Ownership

    hackajob is looking for a Full Stack Engineer in London to design and develop mobile applications amid an AI-first culture. This role offers significant ownership, integrating front-end and back-end systems in a hybrid work environment. The ideal candidate should have proven full-stack experience, strong knowled ...

    Full Stack Engineer (Front End Focus) in London Printerpix

    Coding Experience Experience in XHTML, HTML5, CSS3, and JavaScript (ideally 5+ years). JavaScript & Frameworks Strong JavaScript skills with Node.js experience. Minimum 2 years’ experience in either Vue or React (essential). Next.js Experience preferable. ...

    AI Engineer Full Stack Build Internal AI Tools | Hybrid

    Oliver Bernard is recruiting an AI Engineer to design and build production-ready AI applications and internal platforms for a tech business focused on automation. The ideal candidate will have a strong engineering background in Python or TypeScript, experience with LLMs, AI agents, and workflow automation. You w ...

    Hybrid Full Stack AI Engineer — Build Production AI Tools

    Oliver Bernard is looking for a Full-stack AI Engineer in Greater London to join a dynamic tech business. This hybrid role offers the opportunity to work hands-on with AI-powered tooling and workflow automation, collaborating in a small, impactful engineering team. Candidates should have a strong background in P ...

    Freelance Remote Full Stack Engineer to Accelerate NHS Care

    Paloma Health is seeking a Fullstack Engineer to enhance the Paloma Portal, an AI-powered patient pathway and Electronic Patient Record software. In a hybrid or remote setting, you will collaborate across teams, developing innovative solutions for autism and ADHD assessments. Key responsibilities include coding ...

    Senior Full Stack Engineer — AI Driven Real Time Platforms

    SR2 is looking for a Senior Product Engineer for a hybrid role in London. You will tackle complex challenges in real-time data systems and AI-powered workflows within a dynamic startup environment. The role requires expertise in languages like Golang, Rust, and TypeScript, along with a mindset geared towards own ...

    Senior Full Stack Engineer: AI Real Time Systems (Hybrid)

    SR2 | Socially Responsible Recruitment | Certified B Corporation™ is looking for a Senior Product Engineer in London. In this hybrid role, you will tackle complex engineering challenges involving distributed systems and high traffic data processing. You will work on real-time event streaming, AI-powered workflow ...

    Full Stack Engineer – C#/.NET, Scale LMS & E commerce

    Virtual College is seeking a Full Stack Software Engineer to join their technology team in Leeds, UK. The role involves designing and maintaining scalable applications, developing features for a Learning Management System, and collaborating with Agile Scrum teams. Strong experience with C# / ASP.NET Core and SQL ...

    Full Stack Engineer AI Driven, End to End Impact

    Atos is seeking a Full Stack Engineer based in Greater London. This role requires designing and deploying solutions for complex business problems and involves significant contributions to innovative projects in AI. Candidates should have a strong background in STEM or relevant coding experience. Benefits include ...

    Senior Full Stack Engineer AI Legal Tech, Global Scale

    Harnham is seeking a senior Full Stack Engineer in Greater London to work on AI-powered legal drafting and document editing. The role involves building and scaling backend foundations, designing APIs, and owning UIs for complex legal workflows. Ideal candidates should have strong skills in Python and/or TypeScri ...

    Hybrid Full Stack Engineer for Real Time Logistics Platform

    Reelables, located in London, is seeking a Full-Stack Developer to lead the creation of innovative smart shipping solutions. In this hybrid position, you will develop and deliver customer-facing features, utilizing your expertise in both frontend and backend technologies, mainly TypeScript and Node.js. You will ...

    HealthTech Full‑Stack Engineer — AI/CV, Equity in London

    Jack & Jill, a fast-growing health-tech startup, seeks a Full Stack Engineer to join a dynamic team in London. You will build computer vision technology aimed at eliminating musculoskeletal pain, collaborating closely with clinical professionals and UX designers. The role offers autonomy, influence over architec ...

    Founding Full Stack Engineer — Build a Trust‑Driven Marketplace

    black.ai is looking for a founding full-stack engineer in Shoreditch, London. You will own the entire tech stack and collaborate directly with the CEO and other team members. A competitive compensation package of £160-170k includes both salary and shares, designed for those willing to invest fully in a mission-d ...

    Senior Full Stack Engineer — End to End Delivery & AI

    hackajob is seeking a Senior Specialist, Full-Stack Engineer based in London. This role emphasizes the design and maintenance of backend systems along with the contribution to modern web frontends. The ideal candidate will have strong proficiency in Java and Spring, experience in CI/CD processes, and a solid und ...

    Full Stack Engineer: Scale AI Driven Front & Back End

    Arrows is seeking a top-tier engineer to join their fast-growing startup in Greater London. The ideal candidate will build both front-end and back-end systems, focusing on scalability and collaboration within a high-performance team. Applicants should have expert Python skills, experience with PostgreSQL and mod ...

    Senior Full Stack AI Engineer Fintech, London (4d/wk)

    La Fosse is recruiting a Senior Full-Stack Engineer for a new AI Innovation Team within a leading global fintech based in Central London. In this role, you will own full-stack features from frontends to backends, mentor engineers, and integrate diverse systems. Key requirements include 5+ years of engineering ex ...

    Remote Senior Full Stack Engineer: AI/Data in Manufacturing

    DATABILITY 360 INSIGHT LTD is looking for a Senior Full-Stack Engineer to work on AI and data-related projects in manufacturing. As a core team member, you will contribute to the development of our operational platform and AI solutions. The role offers significant autonomy, a fully remote setup, and a competitiv ...

    Senior Full Stack Engineer: Build Premium UX & Scalable APIs

    Mitra Bio is seeking a Senior Full Stack Engineer in Greater London to help shape a luxury-grade digital product. The role involves building exceptional web experiences, developing frontend integrations, and ensuring high product quality. Candidates should have over 5 years of relevant experience, a strong under ...

    Hybrid Full Stack Engineer (TDD, C# / JS) – API Integrations

    Adria Solutions Ltd. in Warrington seeks a Full Stack Engineer with strong test-driven development experience. The role involves designing and delivering API integrations across a cybersecurity platform, collaborating with QA and DevOps teams. Key qualifications include proficiency in C#/.NET Core, mod ...

    Full Stack Engineer Jobs in UK 2026 | Quick Hiring

    Full Stack Engineer Jobs in UK 2026 | Quick Hiring Are you ready to build cutting‑edge digital products that redefine how businesses interact with artificial intelligence? This Full Stack Engineer role offers an exciting opportunity to shape next‑generation AI‑driven user experiences. You will de ...

    Senior Full Stack Engineer: Shape Platform & Lead with Impact

    Zinc, based in London, is seeking a Senior Product Engineer to enhance our engineering team. You will be pivotal in shaping our platform's technical direction, building high-quality features, and ensuring our product serves thousands of customers effectively. This role involves close collaboration with ...

    Lead AI Platform Engineer | Full Stack & AI in Production

    LSEG is seeking a Lead Engineer to drive the development of both backend and frontend systems. The successful candidate will have over 5 years of software engineering experience with strong skills in Java/Kotlin, Spring Boot, and AI feature integration. This role combines hands-on engineering and technical leade ...

    Senior Full Stack Engineer — Fast, Ownership‑Driven Web & Mobile

    Wayfindi is seeking a talented full-stack engineer to join their London team. This role involves working on both backend and mobile/web applications, with a focus on delivering innovative features and integrations. Ideal candidates will have at least 5 years of experience, a passion for swift coding, and strong ...

    Founding Full Stack Engineer – AI Studio, London (On site)

    Antler is seeking a Full Stack Engineer to spearhead product engineering efforts as a Founding Engineer. You will handle end-to-end development of applications, focusing on both backend and mobile delivery. This hands-on role not only offers a unique equity stake but also opportunity for rapid personal and profe ...

    London Based Full Stack Engineer Real Time Simulation UI

    Hadean is seeking a Full Stack Software Engineer to join their populAI team in London. You will lead the development of the web application used for real-time simulations, utilizing React, TypeScript, and Node.js. The ideal candidate has at least 4 years of experience, capable of contributing to C++ as needed. T ...

    Senior Full Stack Engineer for AI Driven Health Platform

    Ally Health is seeking a senior full-stack engineer in Greater London to design and build product features across the tech stack. The role emphasizes ownership from frontend to backend, including the use of AI coding tools for optimized workflows. The ideal candidate should have over 6 years of experience in pro ...

    Senior Full Stack Engineer: AI SaaS, Remote, Stock Options

    A leading tech start-up in the UK is seeking a Senior Full Stack Engineer to join their team and work on creating innovative AI-powered SaaS solutions. You will leverage cutting-edge technologies like React, Next.js, and Typescript to develop impactful products. The company offers competitive salaries with excel ...

    AI Product Engineer (Full Stack / AI Systems) in Manchester

    AI Product Engineer (Full Stack / AI Systems) We are building a new AI‑powered product line and are seeking a hands‑on AI Product Engineer to design, build, and scale intelligent systems in production. This role bridges product thinking, software engineering, and real‑world AI system behaviour, t ...

    Agent Native Full Stack Engineer — Shape the SDLC (London)

    Jack & Jill, a London-based AI startup, is seeking a Full Stack Software Engineer to build the next generation of software development tools. In this role, you will design and develop an agent-native platform, significantly impacting product architecture as the company transitions from beta. Ideal candidates pos ...

    Hybrid Full Stack Engineer AI Powered NHS Care Portal

    Paloma Health in Greater London is seeking a Fullstack Engineer to improve access to autism and ADHD assessments. You will collaborate with cross-functional teams to develop AI-powered software. Ideal candidates have four years of experience and proficiency in C# and TypeScript. The role supports career developm ...

    Fast Ship Full Stack Engineer in London (Hybrid, Equity)

    Fuku is seeking a Fast Engineer in London, focused on building and shipping innovative products. The ideal candidate will demonstrate skills in launching projects independently and working efficiently across various technologies. This position offers a competitive salary range of £75,000 to £140,000, reflecting ...

    Senior Python Full Stack Engineer Shape Cutting Edge Tools

    An innovative technology firm in Newcastle upon Tyne is seeking a Senior Full Stack Developer to lead the development of sophisticated web applications. This role involves end-to-end development, system architecture, and mentoring juniors. The ideal candidate will have deep experience in Python, cloud computing, ...

    Full Stack Product Engineer — AI, Robotics, Real Time Ops

    twentyAI, based in Greater London, is seeking a skilled Software Engineer with over 3 years of full-stack experience. You will develop innovative features across the tech stack, from user interfaces to backend systems, while also integrating AI solutions. Benefits include a competitive salary, share options, gen ...

    Full Stack Engineer for AI Driven Low Code Platform

    A cutting-edge tech company in London is seeking a Fullstack Software Engineer to enhance their development tools. This role offers an attractive salary of £140k+, stock options, and exceptional benefits. The ideal candidate should have extensive experience in Python and frontend technologies like Vue or React. ...

    Senior Full‑Stack Engineer: Lead & Scale a SaaS Platform

    A leading investment technology firm in Greater London is looking for a talented full-stack software developer. This role involves optimizing and building features for their award-winning web platform. Candidates should have 4-7 years of experience in web development and proficiency in technologies such as React ...

    Senior Full Stack Engineer Remote, Flexible Hours, Retention Bonus

    A tech firm in Greater London seeks a seasoned full-stack developer to drive the continued evolution of our applications. You're expected to bring over 10 years of PHP expertise and substantial experience with frontend frameworks. The role entails managing features, writing tests, and collaborating deeply on all ...

    Senior Software Engineer AI Driven Full Stack with Equity

    Prolo, a fast-growing startup in London, is seeking a Senior Software Engineer who will own the end-to-end experience of their platform. The successful candidate will lead the development of new features using Node, Python, and React while designing APIs and interfaces for AI interaction. They value product thin ...

    Full Stack Engineer — AI Economics Platform (London, 4d/wk)

    A tech-driven company in London is looking for a Full-Stack Engineer to help build a new platform focused on AI agent costs and margins. You will have full technical ownership of the architecture while collaborating with experienced founders. Ideal candidates should have 3+ years of experience in backend systems ...

    Full Stack Software Engineer – Early Stage HealthTech/FinTech TWE42522

    Overview Full Stack Software Engineer – Early-Stage HealthTech/FinTech - London. Permanent | Competitive Salary + Equity | Seed-Stage Startup | AI, FinTech, Healthcare. We are representing a well-funded, early-stage startup redefining financial visibility in the healthcare sector. Backed by ...

    Staff Software Engineer – Full Stack (C/.NET, TS, Angular)

    Java Script Works is looking for a Staff Software Engineer based in Edinburgh, United Kingdom. The role requires expertise in ECMAScript, TypeScript, HTML5, and CSS3, alongside knowledge of design principles like SOLID and TDD. The ideal candidate should also have experience with automated testing and a solid un ...

    Senior Full Stack Engineer: AI First, LLM Driven Payments

    Ophelos Limited is looking for a Senior Software Engineer (Full Stack) in London. The role involves designing and delivering software with ownership, mentoring team members, and collaborating in a hybrid environment. The ideal candidate should have at least 5 years of experience, proficiency in TypeScr ...

    Senior Full Stack Engineer for AI Platform & Data Viz

    Retelligence in Greater London seeks a motivated Full Stack Engineer to join a senior team building advanced AI platforms. The role encompasses managing the entire feature lifecycle, from backend services to interactive frontend experiences. Candidates should excel in Python and TypeScript with a strong grasp of ...

    Senior Full Stack Engineer | Trading Systems & Real Time UI

    Most full stack engineers have never had a trader lean over their shoulder and ask why a position update took half a second. If you have, this role is likely relevant to you. I am working on a confidential mandate for a London-based trading firm rebuilding its client-facing trading platform from th ...

    Senior & Lead Full Stack Engineer (VC Backed Scale Up)

    If you’re a senior or lead engineer who wants more ownership, better learning, modern AI workflows, and the chance to help build something with real momentum, this is worth a look. Strong engineers around you. Real product problems to solve. Modern tooling. Meaningful input. And the kind of timing wher ...

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      Full Stack Engineer Java React Cloud Jobs in United Kingdom Job Search Guide, Trends and Insights