2,290,489+ Full Stack Javascript Developer Jobs in UK — Top Companies Hiring July 2026

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Senior Java Full Stack Engineer – AI Driven Microservices

Citi is seeking a Senior Java Full-Stack Engineer to design and implement high-quality application systems. In this role, you will participate in the software development lifecycle, developing resilient back-end systems and intuitive front-end interfaces. Ideal candidates have 6-10 years of software en ...

Senior Software Engineer – Full‑Stack Cloud (GCP) Hybrid

Connor Fox Recruitment Solutions is looking for a Senior Software Engineer in Edinburgh, Scotland. This role involves leading the full development lifecycle, from technical discovery and architectural design to coding and deployment. You will work within a collaborative culture, developing impactful so ...

Founding Full Stack Product Engineer AI Native Cybersecurity

C&D Talent Advisory - Academy is seeking a Mid-Senior Full-Stack Engineer to join a pioneering team working on AI-native cybersecurity solutions. The role involves end-to-end product ownership, building modern web applications using TypeScript and React, and integrating AI capabilities. Candidates shou ...

Principal Full Stack Architect | AI Driven Platform Lead

Atlas Copco Airpower N.V. is looking for a Principal Full Stack Engineer based in Clevedon, United Kingdom. The role focuses on designing and developing a software application for Thermal Management Solutions, using AI-assisted development practices and leading architectural decisions. This position of ...

Principal Full Stack Engineer – AI‑Driven SaaS Leader

Sivara GmbH, a high-growth SaaS business in the UK, is seeking an experienced Principal or Lead Engineer to shape the future of customer-facing platforms. This hands-on leadership role emphasizes collaboration, innovation, and technical influence within a mature engineering environment. The company off ...

Senior Full Stack Engineer: Lead Public Sector Solutions

A digital transformation consultancy in Altrincham is seeking a Senior Full Stack Software Engineer to design and deliver digital solutions for public sector challenges. The role requires ownership of delivery, strong expertise in .NET, Java, or Python, and mentoring skills. The ideal candidate will thrive in a ...

Senior Full Stack Engineer (Django/Python) – SC Cleared

Sivara GmbH is seeking an experienced Senior Full Stack Developer to join the team. The role is hybrid and supports locations such as London, Manchester, Birmingham, Sunderland, or Belfast. Candidates must have 8-10 years of relevant experience and knowledge in Python and Django, with SC Clearance as a minimu ...

Senior Java Full Stack Engineer, AI Driven Platform

hackajob is collaborating with BNY to find a Java Full Stack Engineer to join their Conventional Trust Platform team in Manchester. The role focuses on AI-driven development practices, modernization initiatives, and ensuring high-quality engineering outcomes. Candidates should have strong Java developm ...

Senior Full Stack Engineer Build Scalable eCommerce Infra

Swap, located in the United Kingdom, is seeking a Full Stack Engineer to join our growing team. In this pivotal role, you will help shape the future of our company by writing robust and maintainable code while working with a dynamic team focused on delivering cutting-edge solutions. The ideal candidate ...

Remote First Full Stack Tech Lead, Platform Scale

The Flex is seeking a Full-Stack Engineering Lead to guide the development of Base360.ai. This hands-on leadership role involves designing scalable systems, improving operational efficiency, and mentoring a high-performance engineering team. The ideal candidate will have strong full-stack engineering e ...

Senior Backend‑Heavy Full‑Stack Engineer (Hybrid, London)

Preply, based in London, is seeking a Senior II Full-Stack Engineer who will focus primarily on backend development using Python/Django while also contributing to frontend tasks in React. In this hybrid role, you will lead technical initiatives and work collaboratively with cross-functional teams to deliver m ...

Senior II Full Stack Engineer (back end heavy)

Senior II Full-Stack Engineer (back-end heavy) Location London Employment Type Full time Location Type Hybrid Department Engineering We power people’s progress. At Preply, we’re all about creating life-changing lear ...

Senior Full Stack Engineer for AI Robotics Platform

Humanoid is seeking a passionate Senior Full Stack Engineer to join our team in London, focused on developing advanced humanoid robots. This role involves designing cloud platforms for managing robotic fleets while ensuring robust backend services. The ideal candidate should have expertise in React, AP ...

Senior Full Stack Engineer AI Health Platforms (Remote)

Envision Pharma Group seeks a Senior Full Stack Engineer in Cambridge to lead the design and development of scalable applications driving AI solutions. You will work with cross-functional teams, utilizing modern JavaScript frameworks and Python to optimize performance and ensure system reliability. Thi ...

AI Native Full Stack Tech Lead — Health Tech

Aeon is looking for a hands-on technical lead to guide their engineering team and own the technical direction of their innovative health platform. The ideal candidate will have a strong full-stack background and a genuine focus on AI-driven software development to redefine healthcare with cutting-edge ...

Public Impact Full Stack Engineer for Digital Services

ELLIOTT MOSS CONSULTING PTE. LTD. in Penarth seeks passionate Full Stack Engineers to join product teams. You will collaborate with product owners, managers, and designers to create user-centric applications that enhance public services. The ideal candidate has a degree in Computer Science or related f ...

Full Stack Angular Engineer for Web Banking Solutions

Avaloq AG is seeking a skilled Full Stack Angular Software Engineer to join their team in Edinburgh. In this role, you will design, build, and maintain scalable web applications, collaborating closely with Business Analysts, UX designers, and engineers to deliver user-focused solutions. You will have responsi ...

Full Stack Java Engineer — Fintech Trade & API Platform

Broadridge Financial Solutions is looking for a Full Stack Java Developer in the City of London. This role focuses on developing back-end services and front-end components for the International Processing Engine (IPE). The ideal candidate will have over 4 years of Java development experience and expertise in ...

Hybrid Full Stack Engineer: Gen AI for EdTech

Sivara GmbH is seeking a Full Stack Engineer for an innovative Ed-Tech project, offering up to £475 per day on a hybrid basis near Stratford, London. The ideal candidate will have strong experience in full-stack development, proficiency in Python and React, and a passion for AI-driven applications. Thi ...

Impactful Java Full Stack Engineer | Hybrid | Global Markets

Caspian One is seeking Mid-Level and Senior Full Stack Engineers in Sheffield for a long-term hybrid contract with a leading global financial institution. You will enhance and maintain Java-based services that support operational processes across global markets. The ideal candidate has considerable Jav ...

Full Stack C#/.NET Engineer Enterprise Tech Platform

A leading tech firm in the UK seeks a Full Stack C# Developer for its Enterprise team. You will design and maintain high-quality C#/.NET solutions and build scalable services that support multiple business streams. The ideal candidate has strong experience in C# and AWS, along with the ability to work in a fast- ...

AI Driven Full Stack Engineer for FinTech Growth

Burns Sheehan is seeking a Full Stack Engineer in Manchester to contribute to a vital modernisation programme in a leading FinTech. The role involves designing and maintaining full-stack applications and collaborating within agile teams. Ideal candidates will possess familiarity with Agile methodologie ...

Full Stack Engineer (Python and/or Java) – 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, ...

Senior Full Stack Engineer — Remote‑Friendly AI Platform

Cohere is looking for a talented individual to join our team and contribute to the North AI workspace platform. You will be integral in building and shipping features while developing autonomous agents that process sensitive data. This role allows you to excel in a fast-paced environment and have a significan ...

Remote First Full Stack Tech Lead, Platform Scale

The Flex, based in Belfast, is looking for a Full‑Stack Engineering Lead to scale its technology platform, Base360.ai. This role emphasizes hands-on leadership, product development, and driving engineering excellence. The ideal candidate will design high-impact products, architect scalable systems, and mentor ...

Remote First Full Stack Tech Lead, Platform Scale

The Flex in Brighton is seeking a Full‑Stack Engineering Lead to drive technology and engineering excellence. This role involves developing and launching products, ensuring systems scalability, and mentoring engineers. A strong background in full-stack development is required. The ideal candidate will ...

Senior Full Stack Engineer, Ecomm – 12 month contract

About the Job Games Workshop has an exciting opportunity to join us as a Full Stack Engineer on a 12‑month contract. In this role you will deliver critical customer‑facing eCommerce solutions for Games Workshop. You will spend time understanding the challenges you are trying to solve, cre ...

Lead Full Stack Engineer Shape AI Driven Platform

hedgehog lab in the UK is seeking a Full Stack Engineer to tackle challenges in a legacy codebase while shaping its future. As part of a leading procurement platform, you will work with PHP/Laravel and transition to Python in a flexible environment. You’ll receive 28 days annual leave, 5 Impact Days fo ...

Lead Full Stack Engineer Shape AI Driven Platform

hedgehog lab is looking for a Senior Full Stack Engineer based in Greater London to help shape the technical direction of a leading procurement platform. You'll work across PHP/Laravel and Python, influencing significant architectural decisions and building agentic engineering experience over multiple clients ...

Senior Full Stack Engineer: Build Cross Border Payments

Xe.com in Bracknell is seeking a Senior Full-Stack Engineer to drive the development of our cross-border payments platform. You'll own features across the stack while leading delivery and ensuring production reliability. The ideal candidate will have 6 to 10+ years of experience in building production ...

Full Stack Product Engineer — Build fast, delight users

A forward-thinking B2B support company in Greater London is seeking an individual contributor to build and enhance their customer support platform. This role involves developing both frontend and backend solutions while collaborating closely with customers to resolve issues. Ideal candidates are initiative-drive ...

Remote Full Stack Dev (Angular/Node) — Automation & Modernization

Atos SE is seeking a Full Stack Developer who can work optimally either in-office or fully remotely. This role focuses on modernising web applications and migrating legacy systems to new frameworks. The ideal candidate will possess strong skills in Angular, Node.js, and automation frameworks. Additiona ...

Senior Java Full Stack VP Engineer — Hybrid (UK)

Citibank (Switzerland) AG seeks a Senior Java Engineer with a focus on full-stack development in London. The role emphasizes designing scalable applications using Java, React, and microservices while integrating AI tools for enhanced productivity. The ideal candidate has 6-10 years of software engineer ...

Senior Full Stack Engineer, Ecomm – 12 month contract

Games Workshop has an exciting opportunity to join us as a Full Stack Engineer on a 12‑month contract. In this role, you’ll be part of a team delivering critical customer‑facing eCommerce solutions for Games Workshop. You’ll spend time understanding the challenges you are trying to solve, creating h ...

Senior Full Stack Product Engineer | Work From Anywhere

Zinc is expanding its engineering team and is looking for a Senior Full Stack Product Engineer to shape the technical direction of its platform. You will design and deliver high-quality features while ensuring the product remains efficient and user-friendly. This role requires advanced skills in Node.j ...

Senior Full Stack Engineer AI Platform, Customer Facing

Conveo AI bv is looking for a Senior Full-Stack Engineer to develop their AI-powered platform in London or Antwerp. You'll own the lifecycle of features, actively engage with clients, and have a significant impact on product development. The ideal candidate has 6+ years in full-stack development with a ...

Principal Full Stack Architect: AI Driven Platform Leader

Edwards Vacuum seeks a Principal Full Stack Engineer based in Clevedon, UK. This role is responsible for designing and developing a cradle-to-grave software support application for Thermal Management Solutions, overseeing architectural standards and leading AI-assisted development practices. Candidates ...

Remote First Full Stack Tech Lead, Platform Scale

The Flex in Leeds is seeking a Full‑Stack Engineering Lead to help scale technology and engineering culture. This hands-on leadership position involves building products, solving challenges, and mentoring team members. The successful candidate will lead the development of Base360.ai, design high-impact ...

Senior Full Stack Engineer — AI Platform, Equity & Growth

Oliver Bernard seeks a Senior Full Stack Engineer to join their Product Engineering team in London. This role offers the chance to work on AI powered software used by leading technology companies, contributing to all phases of the product lifecycle from design to deployment. The ideal candidate has sev ...

Hybrid Full Stack Engineer (React/Python) Equity & Learning

Develop, a fast-growing technology-driven startup in Greater London, is seeking a Mid - Mid Senior Software Engineer to join their dynamic team. This hybrid role involves three days at the Central London office, working on cutting-edge technologies like React and Python. The ideal candidate will have s ...

Senior Full Stack Engineer — Flexible Hours, SaaS Leader

Oliver Bernard is seeking a Senior Full Stack Developer to join a market-leading SaaS company in London. The role offers the opportunity to collaborate in a dynamic team environment, ensuring productivity and best practices in development. With 5+ years of experience in PHP, and familiarity with framew ...

Full Stack Software Engineer — Build Real‑World Systems

AB Dynamics, located in Bradford-on-Avon, is seeking a full stack Software Engineer to enhance their industry-leading testing products. You will work both independently and as part of an agile team, engaging with real-world engineering systems, designing features that utilize cutting-edge technology. T ...

Full Stack Engineer (£75k £110k + Equity) at Letty

Job Title Full-Stack Engineer Salary £75k-£110k + Equity Company Description Letty is a high-growth London startup, backed by Entrepreneurs First and top-tier VCs, building the definitive AI agent layer for the $1T+ real estate industry by replacing manual work ...

Staff Full Stack Engineer — Hybrid, Scalable Cloud Identity

Affinidi is seeking a Staff Software Engineer (Full Stack) to enhance their Elements team. The role involves collaborating on product development using TypeScript and React while ensuring performance and security. Ideal applicants are experienced in full-stack development, cloud computing, and have str ...

Full Stack .NET/Angular Engineer – Cloud Native & AI

Network Plus in Worsley is seeking a Full Stack Developer to modernise the platforms used in delivering critical utility services. The ideal candidate will contribute to designing and developing scalable applications using C# and Angular, and will work within an Agile team environment. Candidates shoul ...

Staff Software Engineer, Full Stack (m/f/d)

About the Company Affinidi is a technology company dedicated to changing data ownership for good. We empower businesses and individuals with control and ownership of their data, with a comprehensive approach to managing their holistic identity – accounting for all aspects of their digital footpri ...

Senior Full Stack Engineer Remote, Global Impact & Growth

A technology-driven company is seeking a Senior Full Stack Engineer to join their team. In this fully remote role, you will design and build features for their platform, optimize performance, and collaborate with a global engineering team. Ideal candidates have extensive experience with Node.js, React, and AWS. ...

Senior Full Stack Engineer: AI Platform, Python & React

A tech recruitment firm based in London is seeking a Senior Full Stack Engineer with experience in Python and modern frontend frameworks like React and TypeScript. In this hybrid role, the engineer will design backend systems, create scalable frontend architecture, and integrate complex systems. The ideal candid ...

Full Stack Engineer AI for Industrial Ops (Equity)

Tenth Revolution Group is seeking a Full Stack Engineer to join their team in London. This role offers a unique opportunity to work at the intersection of AI and real-world industrial applications. You will be responsible for delivering AI-driven software solutions that have tangible impacts on operational si ...

Senior Full Stack Engineer: Data Driven APIs & Cloud

Skills and Experience Particularly strong in Kotlin or Java. Experience in designing and implementing data-driven APIs. Exposure to frontend development, especially React.js, Tailwind, REDUX, and Typescript. Past project experience with large-scale web services ...

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