2,439,857+ Full Stack Java Developer Fixedterm Contract Jobs in UK — Top Companies Hiring June 2026

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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. ...

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 ...

Full Stack AI UI/UX Engineer | Equity Options

A leading AI startup in Greater London is seeking a Full-Stack Engineer (Front-End Leaning) to innovate user interfaces for AI-assisted legal work. You will contribute to the design and development of high-performance tools, working closely with AI experts. The ideal candidate has over 5 years experience in web ...

Hybrid Software Engineer — AI‑Driven, Full‑Stack & Cloud

Vertu Motors in Gateshead is seeking Software Engineers to join a dynamic team contributing to vital technology solutions across the automotive sector. This position involves working with various programming languages and cloud technologies, providing an opportunity to engage in full-stack development while c ...

Full Stack Engineer EdTech Impact & Adoption (Share Options)

An EdTech disruptor in Greater London is seeking a Full-Stack Developer to join their innovative team. You will work closely with experienced leaders to enhance their platform, focusing on product development and customer success. This role requires expertise in React and NodeJS, exceptional problem-solving skil ...

Full Stack Engineer for Desktop App & IDE Extension

OpenAI is looking for a Full Stack Software Engineer to contribute to the Codex desktop application and IDE extension. You will own the development of features through the entire stack, from UI to backend services, ensuring performance and reliability. The ideal candidate has a strong foundation in Typ ...

Full Stack JS Engineer Learning Budget & Flexible Hybrid

A leading educational platform in Greater London is seeking a talented Software Engineer to enhance user experience and develop strategic initiatives. The ideal candidate has strong expertise in JavaScript, React, Node.js, and AWS, along with the ability to work collaboratively in a cross-functional squad. This ...

Hybrid Full Stack Engineer Python/React for Trading

Role: Full Stack Software Engineer (Python / React) Client: Leading Multi-Asset Trading Firm Compensation: Up to £140,000 Base + Bonus + Comprehensive Package Location: London (Hybrid)Overview ...

Senior Full Stack JS Engineer — Security‑First Dev

NCC Group is seeking a Senior Software Developer in Cheltenham to design, build, and maintain secure applications for our ITSM platform (ServiceNow). This is a full-time role that requires strong JavaScript expertise across backend, frontend, and API development. The developer will take ownership of so ...

Full Stack Engineer (C#/.NET, React) — Remote & Growth

Gearset Limited in Cambridge is looking for a Software Engineer to join their team. This role involves enhancing existing features and engaging directly with users to shape impactful solutions. Ideal candidates have full-stack experience and a passion for learning within a collaborative engineering culture. < ...

Kotlin Full Stack Engineer: AI Tooling & Scaled Platforms

Salt Digital Recruitment is looking for a Full Stack Engineer in Greater London to help build secure and high-performance products. You will work across Kotlin backend services and React/TypeScript frontends, contributing to modern CI/CD pipelines and AI tools. The ideal candidate has strong skills in ...

Full Stack Engineer (London) Python, AWS, Vue/React

A leading tech recruitment agency is offering a Full Stack Developer Opportunity in London. The successful candidate will design and implement services in Python and collaborate on infrastructure maintenance in a dynamic, agile team. They must have at least 4 years of experience and the right to work in the UK. ...

Senior Full Stack Engineer — Trading Platform (React/TS)

A leading enterprise in financial technology is seeking a Senior Full-Stack Engineer to join their trading platform program in London. The ideal candidate has over 8 years of experience and expertise in TypeScript, Node.js, and React. You will collaborate with senior engineers to enhance performance and reliabil ...

Software Engineering Team Lead (Full Stack, Web & Mobile)

We are commercial property specialists operating across the UK. At Bruntwood, we're committed to offering more than just outstanding office, coworking, retail and lab spaces. Everything we do is tied into our vision of building vibrant communities, whilst providing businesses with the support and expertise ...

Hybrid FinTech Full Stack Engineer | AI Driven Modernisation

Burns Sheehan is looking for a Full Stack Engineer in Manchester to join their scaling FinTech team. In this hybrid role, you will design and maintain full-stack applications using modern technologies while collaborating with agile teams. You will have the opportunity to work on high-impact projects le ...

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 ...

Senior Full Stack Engineer ESG Platform, London Hybrid

Atlas Metrics is seeking a Senior Full Stack Engineer to join their Engineering team in London. This high-impact role requires 8+ years of experience in web application development, focusing on React and Node.js. The selected candidate will collaborate with Product and Design teams to develop core tooling for ...

Hybrid Senior Full Stack Engineer – AI Driven HealthTech

Burns Sheehan is searching for a Senior Full Stack Engineer to join a fast-growing HealthTech company in London. This role offers a hybrid working model and involves integrating AI-assisted tools into a collaborative engineering team. The ideal candidate should have experience with TypeScript, React.js ...

Senior Automation Engineer – Full Stack API & UI Testing

Java Script Works in Northampton is looking for skilled individuals with experience in designing and implementing test automation frameworks for both front-end and back-end applications. Candidates should be proficient in Java and JavaScript, with experience in API and integration testing. The ideal ap ...

Senior Full Stack Product Engineer | Work From Anywhere

Zinc Work Limited is seeking a Senior Full Stack Product Engineer to join our Tech - Engineering team in London. You will play a vital role in shaping our platform, building high-quality features while collaborating closely with Product and Design teams. This role requires advanced full stack developme ...

Senior Full Stack Engineer (Python/React) Hybrid, Equity

Skinandme in London is hiring a Senior Full Stack Engineer to own features across their Python/Flask/React stack. The role involves backend services and customer-facing frontend development, making architectural decisions to ensure scalability. Enjoy a hybrid work model with three office days per week, ...

Lead Full Stack Engineer — Remote First, Share Options

PlannerPal, a UK-based wealth tech company, is seeking a Lead Full-Stack Engineer to design solutions and lead delivery in a distributed engineering setup. You will be responsible for ensuring high-quality output while managing a squad's tasks effectively. The role requires extensive experience in Pyth ...

Senior Full Stack Engineer: C#/.NET & React, Hybrid

A global tech company is seeking a Full Stack Software Engineer with strong C# .Net and React skills, offering a hybrid working arrangement in Cambridge. You will design and develop data-centric software, working within an Agile team. The ideal candidate should have experience with Azure, Snowflake, and SQL, alo ...

Senior Frontend Engineer / Full Stack Product Engineer Energy

About the Role Our client is hiring a Frontend Engineer / Full Stack Product Engineer to help build the software that their customers interact with directly, as they continue to scale their product and technology function. We have already recruited 3 individuals to the company and are pleased to ...

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 / 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 ...

Senior Full Stack Engineer: React, TS & React Native

TechBiz Global GmbH is looking for a Senior Full-Stack Developer to join a dynamic team in London, United Kingdom. This role involves developing cross-platform interfaces using React, optimizing performance, and collaborating closely within an agile team. Successful candidates will have several years o ...

Senior Full Stack Engineer (React, Redux, Node.JS, Ruby)

A Unicorn company that have recently opened up a Enterprise division in London are looking for multiple full stack engineers to join their London based team. The client It’s an opportunity to have an immediate and real impact on the future of their product. They have a self-autonomous envir ...

Senior Full Stack Engineer — AI Driven Home Healthcare

Heim is seeking a Senior Full-Stack Engineer to build AI-powered systems that improve home-based healthcare delivery. The role requires over 6 years of experience; candidates must demonstrate genuine full-stack capabilities and have a proven track record in delivering production software. Responsibilities includ ...

Senior Full Stack Engineer for Growth & AI Marketplace

A leading secondhand fashion marketplace in London is seeking a Senior Full Stack Engineer to enhance user experiences across their platform. You'll work closely with product and design teams to redesign key user journeys, own feature development from problem to production, and analyze data-driven growth experim ...

Senior Full Stack Engineer (C#/React) — Salesforce DevOps

A leading DevOps platform company is looking for a Senior Software Engineer to enhance their product and collaborate closely with users. The candidate should have solid experience in C#, React, and TypeScript, along with a pragmatic and feedback-driven approach. This role offers a competitive salary between £59k ...

Senior Full Stack Tech Lead — Remote, High Impact

A technology startup is seeking a Foundational Engineering Leader to own their technology stack. The role involves driving the technical roadmap, managing a high-performing team, and being a cornerstone of a mission-driven company shaping technology to better communities. A minimum of 5 years in engineering lead ...

Lead Full Stack Engineer — Hybrid Role with Equity

Spruce is seeking a Lead Full Stack Engineer to oversee technical strategy and hands-on coding to aid in transitioning the UK’s heating industry. You will collaborate closely with teams to improve product quality and user experience while mentoring others. This role offers an attractive salary of £90–1 ...

Senior Software Engineer (Full Stack) to £100K + equity

Senior Software Engineer (React, TS, Node, Postgres, Redis) A well-backed core business systems tech scale-up based in Central London, building AI-powered workforce software for fast-growing businesses. Strong product culture, lean team, and a genuine focus on solving real problems. xwzovoh </ ...

Full Stack Engineer (Nuxt/Ionic) – AI Product, Hybrid

An innovative AI product company in Cambridge is seeking a Full-Stack Engineer with over 5 years of commercial experience in full-stack engineering. This hybrid role requires expertise in Vue/Nuxt or React/Next, where you will design and maintain high-quality web and mobile applications. The position offers sign ...

Full Stack Software Engineer — Remote, Flexible PTO & Growth

A leading tech company in Birmingham is seeking a Software Engineer to build its messaging platform. In this full-time role, you will work across the stack with technologies like React/Next.js, Node, and TypeScript. Responsibilities include owning features end-to-end and collaborating closely with customers and ...

Senior Full Stack Engineer Public Sector Impact (Hybrid)

A digital transformation consultancy is seeking a Senior Full Stack Software Engineer in the UK to lead the delivery of complex digital solutions in the public sector. This role demands 5+ years of experience with technologies like .NET, Java, and Python, within a collaborative team. You will influence technical ...

MedTech Full Stack Engineer: Web & Mobile Health Apps

A leading medical device company is seeking a Full Stack Developer in Cambridge, England. This role involves designing and developing scalable web and mobile applications for innovative healthcare technology. The ideal candidate will have 5+ years of experience in full-stack development, proficiency in Nuxt/Vue, ...

Remote First Junior Full Stack Engineer (TypeScript/React)

Story Terrace Inc. is seeking a junior Full Stack Software Engineer to improve internal LegalTech systems. You'll work with a TypeScript codebase and collaborate with legal and operational staff to develop features and debug issues. Ideal candidates have a Bachelor's in a Scientific or Technology field ...

Senior Full Stack Engineer — AI Driven, Scalable Platform

Titanbay in Greater London seeks a Senior Full Stack Engineer to enhance their private market investing platform. The role emphasizes backend engineering, scalable design, and AI integration, making collaboration with product and design teams essential. The ideal candidate will have strong backend expe ...

AI Powered Full Stack Engineer (London, In Office)

La Fosse in London is looking for a Python Engineer to join their team. The role is focused on developing an AI-driven product that improves efficiency in the real estate sector. You'll work closely with a small but dedicated team, taking ownership of significant features from concept to production. Th ...

Senior Full Stack Engineer Climate Tech, Hybrid + Equity

La Fosse is looking for a Lead Full Stack Engineer to join a VC-backed, high-growth startup focused on decarbonising home heating in the UK. You’ll take ownership of key product architecture, write high-impact code, and work closely with the product team. The ideal candidate will be well-versed in tech ...

Senior Full Stack Engineer – UK Growth Platform (Hybrid)

Eucalyptus is seeking an experienced engineer to join our UK-specific team to drive product growth through data-driven initiatives. This role entails improving conversion funnels, extending features for UK customers, and enhancing product retention. Candidates should have strong skills in React, TypeScript, and ...

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 ...

Senior Full Stack Engineer Remote‑Friendly, Flexible Hours

Leidos Innovations UK Ltd is seeking a Senior Software Engineer to deliver high-quality software solutions. This role focuses on full-stack development and requires extensive experience with Java and modern frameworks like React and TypeScript. Successful candidates will mentor junior engineers, suppor ...

Founding Full Stack Senior Engineer (UK) – Remote, Equity

CloudDevs is seeking a Founding Full‑Stack Senior Engineer based in the UK to lead technical development of an AI-driven Hospitality Tech platform. This role emphasizes backend development using Python and Django while managing substantial web scraping operations. The position offers between £70k and £90k salary ...

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    Full Stack Java Developer Fixedterm Contract Jobs in United Kingdom Job Search Guide, Trends and Insights