2,279,477+ Full Stack Javascript Developer Jobs in UK — Top Companies Hiring July 2026

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Remote Python Full Stack Engineer — Low Code Automation

MOST Specialist Technologies, localizada em Full Sutton, Reino Unido, busca um(a) desenvolvedor(a) para atuar em automação de workflows utilizando ferramentas low-code como N8N e integração com APIs. O candidato ideal deve ter formação em Ciências da Computação ou áreas relacionadas, experiência em Python e conh ...

Senior Full Stack AI Engineer (Remote, React/Python)

A leading technology services provider in Edinburgh is seeking a skilled developer to work in an Agile Scrum environment. You will collaborate with cross-functional teams to design and enhance digital products using React and Python, supporting AI-driven solutions. Ideal candidates will have strong experience in ...

DV Cleared Full Stack Engineer – Secure Gov Projects

Experis UK is looking for experienced Full Stack Developers to support critical Defence & Security projects in the UK. This hybrid role involves designing, developing, and deploying secure web applications. Candidates should have experience in Agile methodologies and secure coding practices. You will w ...

VP Full Stack Engineer (Python/Java) Hybrid & Growth

Citigroup Inc. is seeking a Vice President level developer for their Strategic Equity Solutions team in Greater London. This role focuses on creating innovative trader workflow tooling within an agile team environment. The successful candidate will take ownership of the entire software development life ...

London Based Staff Full Stack Engineer – GenAI & LangChain

A leading software development firm is seeking a hands-on full stack engineer to join their team in London. The ideal candidate will lead teams in delivering high-quality software and must possess strong skills in TDD, agile methodologies, and various programming languages including Python and React. This role i ...

Full Stack Engineer AI Powered Debt Markets Platform

A leading AI platform for debt markets is seeking a Backend Engineer to develop systems and functionality for their platform using Python. The role involves collaborating with cross-functional teams to design and implement software that delivers value to clients. Ideal candidates will have experience in API deve ...

Senior Full Stack JS Engineer — Security‑First, Flexible

NCC Group is seeking a Senior Software Developer in Manchester to design and maintain secure applications for our ITSM platform. This role requires strong JavaScript expertise and a security-first mindset. The ideal candidate will collaborate with stakeholders for requirements gathering and customize a ...

Senior Full Stack Architect for Banking & Cloud AI

CAPGEMINI is looking for an experienced FullStack Solution Architect in London, UK. This role requires strong skills in front-end and back-end development, focusing on delivering high-performance, secure digital solutions for banking clients. You will lead a team in the design and delivery of innovative applicat ...

Full Stack AI Engineer: LLM Driven Healthcare Apps

AI Chopping Block, Inc. is looking for a Full-stack Engineer in Greater London to integrate and validate LLMs in production environments. The ideal candidate has a deep understanding of AI systems beyond API integration and can address complex validation and quality assurance challenges. The position promises a ...

London Full Stack AI Engineer Product & ML Ops

A cutting-edge technology firm in London is looking for an Entry-Level Full-Stack Product Engineer. You'll develop and optimize AI solutions and contribute to product development in an innovative environment. Experience with TypeScript, React, and AI/ML is essential. This role offers competitive compensation and ...

Full Stack / Platform Engineer (£90k + Equity) at Handshaik

Job Title: Full-Stack / Platform Engineer Salary: £90k + Equity Company: Handshaik - AI-native company intelligence platform backed by BigChange founder Martin Port. Location: London, UK Job Description: Join a high-growth startup as a ...

Full Stack Engineer AI Driven Game Web & Backend

A dynamic gaming company in Greater London is seeking a Full-Stack Developer to own their app, web, and backend systems. You will collaborate with the Senior Game Developer to enhance user experiences and automate development workflows using AI. The ideal candidate has strong full-stack development skills, exper ...

Full Stack Engineer: Own & Mentor in Hybrid (Maidenhead)

We’re looking for a Full Stack Software Engineer to join a high-performing, product-focused engineering team delivering modern, reliable software across multiple platforms. This role suits someone who enjoys hands‑on development, taking technical ownership and contributing to how engineering is done. ...

Full Stack Engineer – Rapid Delivery & Impact (Stock Options)

Blink group is seeking a skilled Full Stack Engineer based in London to join their dynamic team. You’ll be responsible for developing and maintaining full-stack applications using technologies like TypeScript, Node.js, and React, as well as supporting internal tooling for their customer support team. W ...

Full Stack Engineer: Build Scalable Cloud Infra (AWS)

Kernel is seeking a Full Stack Engineer in London, England, to enhance back-end infrastructure and scale AWS and Kubernetes stacks. This role is ideal for candidates with 6+ years in software engineering and proficiency in AWS, Kubernetes, NodeJS, and Typescript. As part of the startup team, you will m ...

Senior Full Stack Engineer Cloud Native .NET/Azure

A growing UK SaaS technology company seeks a Senior Full-Stack Engineer to join their team in Manchester. This role focuses on backend development using C# and .NET Core, while collaborating on frontend with Angular. The ideal candidate has over 6 years of experience in software engineering, expertise in buildin ...

Lead Full Stack Software Manager (Node.js, PHP, SQL)

Java Script Works is seeking a Software Development Manager in Leicester, United Kingdom. The candidate will be responsible for leading a full stack development team, possessing experience in PHP, Node.js, SQL, and Agile methodologies. This full-time role offers a competitive salary ranging from £55,000 to £65,0 ...

Senior Full Stack AI Engineer — Public Sector Scale

Scale AI is looking for a Full Stack Software Engineer (Forward Deployed) to join their Global Public Sector team in Greater London. This role involves building impactful AI applications in collaboration with public sector partners, addressing critical challenges for citizens. The ideal candidate will ...

Full Stack Engineer for AI Powered Finance (London)

A leading investment management firm in London is seeking a Full Stack Software Developer to build and maintain web applications using Angular and C#. The ideal candidate will have a strong background in full-time software development, proficient in backend technologies like C#. Responsibilities include collabor ...

Remote Full Stack Engineer AI UI & Feature Delivery

A leading AI company is looking for Full-Stack engineers to develop and maintain both front-end and back-end components. This role offers flexibility to work remotely or from offices in major cities. Responsibilities include collaborating with various teams and designing solutions that enhance user experiences. ...

Full Stack Engineer for Cutting Edge, Impactful Projects

About Amodo We are a Sheffield based start-up providing expert engineering consultancy to a variety of clients and industries. We primarily focus on engineered product design, and work in a range of industries and contexts from quantum computing and biotech to heavy industry and animal welfare. W ...

Staff Full Stack Software Engineer, (Forward Deployed), GPS

Scale’s rapidly growing Global Public Sector team is focused on using AI to address critical challenges facing the public sector around the world. Our core work consists of: Creating custom AI applications that will impact millions of citizens Generating high-quality training data f ...

In Store AI Real Time Full Stack Engineer

A stealth-mode AI company in Greater London is seeking a Full Stack Engineer to design and build transformative web experiences for in-store shopping. The role involves creating intuitive web interfaces and implementing real-time backend services. Candidates should have proficiency in full-stack development incl ...

Realtime AI Driven Full Stack Engineer for Retail

A forward-thinking tech startup in Greater London is seeking a Full Stack Engineer to join their innovative team. You will collaborate closely with product, design, and machine learning experts to create next-generation in-store shopping experiences. Responsibilities include designing real-time web interfaces, i ...

Senior Full Stack Java Engineer: React, Microservices, Cloud

EC Markets LTD is seeking an experienced Full-Stack Developer to design and maintain scalable web and mobile applications. Responsibilities include developing responsive applications using React or React Native, building backend services with Java, and integrating front-end and back-end systems. Candidates shoul ...

Principal Full Stack Engineer (Java/React) Hybrid Equity

A technology recruitment firm is looking for a Principal / Lead Full Stack Java Developer in London. The role involves designing and delivering scalable software systems utilizing Java and React, mentoring engineers, and defining technical solutions. Required experience includes strong architectural judgement, m ...

Remote Full Stack Engineer — AI Driven Python & React

A leading technology company in Scotland is looking for a Software Developer to work in a collaborative Agile Scrum team. This role focuses on developing scalable web applications using Python and React while integrating AI capabilities for client projects. The ideal candidate will have strong skills in full-sta ...

Full Stack Software Engineer in Belfast Enso Recruitment

Overview Support CI/CD Cloud GCP Java Mobile NodeJS React React Native Spring Web UX UI Design DevOps JavaScript TypeScript Fullstack Technologie ...

Senior .NET Full Stack Engineer ASP.NET Core Modernisation

A software development company is seeking an experienced Full-Stack C#.NET Developer to modernize legacy systems using ASP.NET Core in Halifax, England. The role involves rewriting applications, ensuring code quality, and collaborating in Agile teams. Candidates should have extensive C#/.NET experience and stron ...

Senior Java Full Stack Engineer – Onsite in Bournemouth

Virtual Hire Staffing is seeking a Senior Java Full Stack Engineer for a 12-month rolling contract at a Global Tier-1 Investment Bank in Bournemouth. This role offers a rare opportunity to gain hands-on experience in a top-tier banking environment, enhancing prospects for future contracts. Responsibili ...

Full Stack Engineer: Remote First with Ownership & Impact

hackajob is seeking talented Full Stack Developers to join their team, collaborating with Atos on impactful projects. This role is ideal for individuals eager to take ownership and solve complex problems in a dynamic environment. You will design and deliver solutions across the application lifecycle wh ...

Full Stack Engineer: Pre Trade Analytics & UI (London)

A leading hedge fund in London is seeking a Full Stack Engineer to join their team. You will contribute to high-impact initiatives and develop web-based trading platforms for pre-trade decision-making and risk evaluation. The ideal candidate has strong skills in TypeScript and React, experience with backend lang ...

Full Stack Engineer — Build AI Driven Internal Platform

A professional services firm in the United Kingdom is seeking a Full Stack Engineer to contribute to their internal-facing Core Internal AI Platform. The role involves building end-to-end software solutions for AI-enabled products and tools across the firm. Candidates should have over 5 years of experience in fu ...

ML Full Stack Engineer: Python Backend & AI Systems

Machine Learning Software Engineer - Full Stack (LLM) London, United Kingdom Bachelor’s degree in Computer Science, Computer Engineering, or a related technical background. Experience Backend software engineering experience in Python. Responsibilities and Requirement ...

Full Stack Java Engineer — Onsite in Glasgow (FTC)

A leading tech consultancy in Glasgow is urgently seeking a Full Stack Developer. The role requires strong experience in Java and Spring Boot, along with proficiency in Docker and Kubernetes. Candidates should hold a Bachelor's degree in a related field and possess excellent problem-solving and communication ski ...

Full Stack Engineer (Python/Java/React) — Remote & Growth

NPAworldwide is seeking Full Stack Python/Java/React Developers to join a mission-led consultancy in Bristol. You will design, develop, and test secure software systems while working in an agile environment focused on the UK Government and Defence sector. The position offers a salary ranging from £50,0 ...

Hybrid Full Stack Engineer: Build Secure, Scalable Apps

Full Stack Software Engineer About CGI At CGI, we design and deliver secure, scalable digital solutions that help organisations transform how they operate and serve their customers. As a Full Stack Software Engineer, you will build high-quality applications across the full technolo ...

Senior/Staff Full Stack Engineer, Build AI Procurement

Omnea is looking for exceptional software engineers to join our growing team in London. You'll be a part of a fast-paced environment at one of Europe's fastest-growing companies, contributing to key product and business decisions while working with cutting-edge technologies like Typescript, React, and AWS. </ ...

Full Stack Engineer: AI HealthTech | London | Unlimited PTO

A dynamic fitness technology company based in London is looking for a Full Stack Software Engineer to play a crucial role in building cutting-edge technology for personalized fitness coaching. You’ll be part of a small engineering team focused on creating innovative features for various applications. The ideal c ...

C# .NET Core Full Stack Engineer | AWS & Microservices

A technology-driven trading company in St Albans is seeking a skilled C# Developer to join their Agile development team. In this senior role, you'll work on enhancing complex payment and client systems within a microservices architecture. The position offers a competitive salary up to £100k, significant bonuses, ...

Senior TS Full Stack Engineer, Trading Platform (Hybrid)

NPAworld is seeking a Senior Full-Stack Engineer to join a trading platform program in Waterloo, London. The role involves designing, building, and maintaining high-performance features, primarily using TypeScript, Node.js, and React. The ideal candidate will have over 8 years of software development experience ...

Full Stack Engineer (FE Leaning) | Equity & Flexible Hours

Clariti AI, located in Greater London, is hiring a Full Stack Engineer to shape their pricing intelligence platform. This exciting role involves designing features, integrating APIs, and ensuring the reliability of a B2B SaaS product. We seek an individual with 3+ years of experience and capabilities i ...

Full Stack Engineer (Python and/or Java) – VP

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we ...

Senior AI Native Backend / Full Stack Engineer (London)

Mondrian Alpha, a high-growth AI startup based in Central London, is seeking a Senior Backend or Full-Stack Engineer to join their core engineering team. This opportunity involves working on critical AI infrastructure and requires candidates to have strong experience in building scalable systems. The i ...

Full Stack Engineer: Build AI Driven FinTech Platforms

A financial intelligence startup in London is seeking a versatile full-stack developer to join their growing team. You will work on a mix of backend services in Python and user-facing applications using React and TypeScript. The role involves cloud-native deployments on AWS while collaborating with product manag ...

VP, Full Stack Engineering – Lead Scalable, Secure Systems

A leading financial services firm is seeking a Vice President, Full Stack Engineer to lead high-impact engineering teams in London. This role requires proven leadership in software engineering, deep Java expertise, and strong DevOps practices. The ideal candidate will own the end-to-end delivery of critical soft ...

Full Stack Engineer (Kotlin and/or Python) – VP

Department Overview Equities Technology at Citi is undertaking a bold, multi‑year transformation to build a best‑in‑class global platform across execution, prime, clearing and cross‑product margining. We are re‑engineering our technology estate to achieve world‑leading performance and resiliency, ...

Full‑Stack .NET Engineer (Hybrid) – Secure Pharma Platforms

Copley Scientific is seeking a Full Stack .NET Developer to enhance its software platform. This role offers opportunities to develop secure and high-quality software solutions in a collaborative environment. The successful candidate will be responsible for writing maintainable code, collaborating with ...

Senior Full Stack Consultant Java/Node, Cloud & Frontend

A leading consulting firm in Oxford is seeking a Senior Full Stack Developer (Consultant) who enjoys coding and thrives in client-facing environments. This position involves development, solution design, and consulting, utilizing Java, Node.js, and modern front-end frameworks to guide clients. The ideal candidat ...

Full Stack Software Engineer – Java/Spring (Onsite UK)

A leading technology company in the UK is seeking a full-time Software Engineer to join its growing teams in London, Gloucester, or Manchester. The ideal candidate will have full-stack experience, proficiency in Java with Spring Boot, and familiarity with modern JavaScript frameworks. This position offers compet ...

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    Full Stack Javascript Developer Jobs in United Kingdom Job Search Guide, Trends and Insights