234,850+ Fullstack Javascript Engineer Jobs in UK — Top Companies Hiring June 2026

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Fullstack JavaScript Engineer

Fullstack Engineer - Up to £75k - 2 Days onsite - Fulham I am currently working with an excting SaaS client who has built out a Risk management solutions platform. Their primary focus is to provide businesses with advanced tools and platforms that help them identify, assess, manage, and miti ...

Fullstack JavaScript Engineer

Fullstack Engineer - Up to £75k - 2 Days onsite - Fulham I am currently working with an excting SaaS client who has built out a Risk management solutions platform. Their primary focus is to provide businesses with advanced tools and platforms that help them identify, assess, manage, and mitigate risks e ...

Fullstack JavaScript Engineer

Fullstack Engineer - Up to £75k - 2 Days onsite - Fulham I am currently working with an excting SaaS client who has built out a Risk management solutions platform. Their primary focus is to provide businesses with advanced tools and platforms that help them identify, assess, manage, and mitigate risks e ...

Fullstack JavaScript Engineer

Fullstack Engineer - Up to £75k - 2 Days onsite - Fulham I am currently working with an excting SaaS client who has built out a Risk management solutions platform. Their primary focus is to provide businesses with advanced tools and platforms that help them identify, assess, manage, and miti ...

Fullstack JavaScript Engineer

Fullstack Engineer - Up to £75k - 2 Days onsite - Fulham A high number of candidates may make applications for this position, so make sure to send your CV and application through as soon as possible.I am currently working with an excting SaaS client who has built out a Risk management so ...

Fullstack JavaScript Engineer

Fullstack Engineer - Up to £75k - 2 Days onsite - Fulham I am currently working with an excting SaaS client who has built out a Risk management solutions platform. Their primary focus is to provide businesses with advanced tools and platforms that help them identify, assess, manage, and mitigate risks e ...

Javascript Fullstack Engineer Senior

Be among the first 25 applicants. Get AI-powered advice on this job and more exclusive features. About Lumenalta Fully remote work Rapid growth opportunities Self-Improvement What You Will Work On Collaborate with visionary ...

Javascript Fullstack Engineer Senior

We are actively building a pipeline of experienced engineers for upcoming client projects, with some opportunities expected to begin as soon as possible. While start dates are dependent on project timing, this role reflects active hiring needs aligned with confirmed and anticipated work. Candidates who are ...

Javascript Fullstack Engineer Senior

With over 20 years of fully remote experience, Lumenalta offers: Fully remote work Rapid growth opportunities Self-Improvement What You Will Work On Collaborate with visionary enterprise clients Learn how to handle difficult situations ...

Javascript Fullstack Engineer Senior

With over 20 years of fully remote experience, Lumenalta offers: Fully remote work Rapid growth opportunities Self-Improvement What You Will Work On Collaborate with visionary enterprise clients Learn how to handle difficult situations ...

Javascript Fullstack Engineer Senior

4 days ago Be among the first 25 applicants With over 20 years of fully remote experience, Lumenalta offers: Fully remote work Rapid growth opportunities Self-Improvement What You Will Work On Collaborate with visionary enter ...

Fullstack JavaScript Contractor

OverviewSenior Fullstack JavaScript contractor to join a scale-up in Manchester for the next 3 months (and beyond). Outside IR35. 1 day per week in the office in central Manchester (mostly for meeting updates).ResponsibilitiesWork on replatforming the platform to a modern No ...

Fullstack JavaScript Contractor

Overview Senior Fullstack JavaScript contractor to join a scale-up in Manchester for the next 3 months (and beyond). Outside IR35. 1 day per week in the office in central Manchester (mostly for meeting updates). Responsibilities Work on replatforming the platform to a modern N ...

Fullstack JavaScript Contractor

OverviewSenior Fullstack JavaScript contractor to join a scale-up in Manchester for the next 3 months (and beyond). Outside IR35. 1 day per week in the office in central Manchester (mostly for meeting updates).ResponsibilitiesWork on replatforming the platform to a modern No ...

Lead Fullstack Engineer (Java/JavaScript)

Base pay range Direct message the job poster from Lloyds Banking Group SALARY: £90,440-127,680 per annum HOURS: Full-time - 35 hours per week WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or 40% of our ti ...

Senior Fullstack Software Engineer (JavaScript & TypeScript,)

Job Description We are seeking a Senior Software Engineer to join a high‑performing engineering team delivering robust, scalable, and high‑quality software solutions. In this role, you will apply your technical expertise and strategic mindset to design and build new features, resolve complex issu ...

Senior Fullstack Software Engineer (JavaScript & TypeScript,)

Company Description Legal & General (L&G) is a leading UK financial services group and major global investor. We’ve been safeguarding people’s financial futures since 1836, and strive to build a better society, while improving the lives of our customers and creating value for sharehold ...

Senior Fullstack Software Engineer (JavaScript & TypeScript,)

Company Description Legal & General (L&G) is a leading UK financial services group and major global investor. We've been safeguarding people's financial futures since 1836, and strive to build a better society, while improving the lives of our customers and creating value for shareholders ...

Fullstack Engineer

About Dune Dune is on a mission to make crypto data accessible. We’re a collaborative multi-chain analytics platform used by thousands of developers, analysts, & investors to understand the on‑chain world and the frontiers of finance. We’re a team of ~60 employees, working together across E ...

JavaScript Engineer

This is a free 16 week training course followed by the potential for a role with one of our clients. Title: Mid-Level JavaScript Engineer Job location: Birmingham, UK Description: Step into a role as a Mid-Level JavaScript Engineer with the Counter Terrorist ...

JavaScript Engineer

JavaScript EngineerCheltenham, full time onsiteNcounter is supporting a highly specialised software consultancy delivering secure, high assurance engineering into some of the UK’s most sensitive environments. This is a genuinely mission focused role, working on complex systems where the work carries ...

Fullstack Engineer

The world's largest asset class, debt, operates with the worst data. Technology has revolutionized equity markets with electronic trading, quant algos and instantaneous news. However, in debt capital markets, the picture is completely different. It still behaves like it’s in the 1980s; trillions of ...

Fullstack Engineer

About our Gen AI team Our Gen AI team brings together top engineers, diverse perspectives, and a flat team structure that gives you visibility and impact from day one! With 40–50 people across, we work on some of the most exciting projects in the market, from next-gen fintech payment platforms to ...

Fullstack Engineer

Mid-Level Full Stack Developer – Permanent Position Location: Manchester – Hybrid (2‑3 days onsite) Package: up to £60,000 + bonus + private healthcare. We are working with a PE‑backed consumer platform that is rebuilding its internal engineering capability after historically rely ...

Fullstack Engineer

About the role As a full-stack Engineer, you will be working as part of a high-performance team developing new solutions that put the customer at the heart of the product. We believe in shipping quality, tested, secure and consistent code. You will also work closely with other development teams a ...

Fullstack Engineer

Fullstack Engineer Department: Tech - Engineering Employment Type: Full Time Location: Zinc - London Description We are expanding our engineering team to boost our development capacity and take our product to the next level. As a Fullstack Engineer, you'll play a ...

FullStack Engineer

AI Factory, an Italian spin-off of AI Venture Builder specialized in developing and deploying AI solutions for enterprises, is looking for a FullStack Engineer with at least 5 years of experience, with full mastery of both frontend and backend, and a strong aptitude for analysis and design of comple ...

Fullstack Engineer

Zelt is on a mission to rebuild how organisations run. Our all-in-one platform helps modern companies manage their people operations across payroll, onboarding, time off, IT provisioning and more, in a seamless and automated way. We are the only platform on G2 named a Global Momentum Leader across ...

Fullstack Engineer

Tesco UK • Manchester • Permanent • Working hours 36 • Apply by 31-Mar-2026 About the role As a full-stack Engineer, you will be working as part of a high-performance team developing new solutions that put the customer at the heart of the product. We believe in shipping quality, tes ...

Fullstack Engineer

Fullstack Engineer Department: Tech - Engineering Employment Type: Full Time Location: Zinc - London Description We are expanding our engineering team to boost our development capacity and take our product to the next level. As a Fullstack Engineer, you'll play a ...

Fullstack Engineer

About Atos Group Atos Group is a global leader in digital transformation with c. 63,000 employees and annual revenue of c. €8 billion, operating in 61 countries under two brands – Atos for services and Eviden for products. European number one in cybersecurity, cloud and high performance computing ...

Fullstack Engineer

About Zelt Zelt is on a mission to rebuild how organisations run. Our all-in-one platform helps modern companies manage their people operations across payroll, onboarding, time off, IT provisioning and more, in a seamless and automated way. We are the only platform on G2 named a Global ...

Fullstack Engineer

About Zelt Zelt is on a mission to rebuild how organisations run. Our all-in-one platform helps modern companies manage their people operations across payroll, onboarding, time off, IT provisioning and more, in a seamless and automated way. Before applying for this role, pl ...

Fullstack Engineer

About Zelt Zelt is on a mission to rebuild how organisations run. Our all-in-one platform helps modern companies manage their people operations across payroll, onboarding, time off, IT provisioning and more, in a seamless and automated way. We are the only platform o ...

Fullstack Engineer

Mid-Level Full Stack Developer - Permanent PositionManchester / Hybrid (2-3 days onsite)Up to £60,000 + bonus + private healthcareWe’re working with a PE-backed consumer platform currently rebuilding their internal engineering capability after historically relying on outsourced development teams. ...

Senior Fullstack Engineer

About Allica Bank Allica is the UK’s fastest growing company - and the fastest-growing financial technology (Fintech) firm ever. Our purpose is to help established SMEs, one of the last major underserved opportunities in Fintech. Established SMEs are the backbone of local co ...

Fullstack Engineer Monetisation

About MoonPayHi, we’re MoonPay. We’re here to onboard the world to the decentralized economy by making digital money move as universally and effortlessly as the internet. Why?Because crypto, stablecoins and blockchain aren’t just technologies. They’re tools for global financial empowerment. They give peopl ...

Fullstack Engineer (AI)

Fullstack AI Engineers I'm actively speaking with contractors to join a leading media / publishing company seeking some Fullstack AI Engineers to undertake a programme of AI-driven engineering automation across its technical estate. The team manages over 40 WordPress repositories and a suite of mobi ...

Fullstack Engineer (AI)

Fullstack AI Engineers I'm actively speaking with contractors to join a leading media / publishing company seeking some Fullstack AI Engineers to undertake a programme of AI-driven engineering automation across its technical estate. The team manages over 40 WordPress repositories and a suite of mobile ap ...

Junior Fullstack Engineer

About Medly AI We're the fastest growing EdTech startup in London, on a mission to change education forever. We're living through a once-in-a-generation moment where AI-native companies are redefining entire industries - Cursor for code, Midjourney for image gen, Harvey for law ...

Product Engineer (fullstack)

London, Old Street, Onsite, AI Agents, Skippr AI (direct, no agency please) ⭐ About the role We’re looking for a Product Engineer to join our small but high‑calibre team in Old St . We’re a team that’s 100% AI‑native — not just building AI agents, but using them daily to supe ...

Fullstack Software Engineer

Base pay range This range is provided by iO Associates - UK/EU. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Lead Principal Consultant - Government, Defence & Security We are working closely with a Software Consultancy firm i ...

Junior Fullstack Engineer

Base pay range This range is provided by Medly AI. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Direct message the job poster from Medly AI About Medly AI We're the fastest growing EdTech startup in London, on a mission t ...

Senior Engineer Javascript

Forward Deployed Engineer We’re partnered with a fast-growing applied AI company building production systems that help large organisations modernise and automate complex operational workflows involving high volumes of individual “cases” that must be reviewed, processed, and resolved en ...

Senior JavaScript Engineer

Overview Hiring: Full Stack JS Software Engineer (GraphQL APIs | TypeScript | Cloud-Native) Expert level in GraphQL West London HQ | Hybrid (1–2 days on site) | Outside IR35 | 6-month initial contract (extensions likely) Responsibilities Designing & TypeS ...

Senior Javascript Engineer

This range is provided by MRJ Recruitment. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Following a successful £10m funding round in the last quarter of 2025, our client is entering a hyper‑growth phase. Fr ...

Senior JavaScript Engineer

Senior Javascript Engineer (up to £76,000 per annum) About the role You’ll be working on Fabric, our digital publishing platform, to design and build scalable APIs and AI‑powered text, audio and video content services that integrate internal systems with third‑party platforms. Repo ...

Frontend Engineer JavaScript

This is a job that Scout, our AI Recruiter, is recruiting for on behalf of one of our clients. She will pick the best candidates from ivee's network. Front-end Engineer The Front-end Engineer will be responsible for building responsive and user-friendly web applications. Y ...

Senior Engineer Javascript

Forward Deployed Engineer - Autonomous AI We’re partnered with a globally renowned applied AI company building end-to-end autonomous software agents designed to fundamentally change how engineering teams operate. Their products combine advanced reasoning models with developer-native tooling to e ...

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    Fullstack Javascript Engineer Jobs in United Kingdom Job Search Guide, Trends and Insights