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

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Edinburgh Senior Full Stack Dev: .NET Core & Angular 16

A leading BPM company is seeking a seasoned Full Stack Senior Developer to join their team in Edinburgh. The ideal candidate will have over 8 years of experience in .NET Core and at least 3 years with Angular 16+. You will be responsible for developing solutions for a wealth management client, ensuring that appl ...

Full Stack Engineer — Build Scalable Backend & AI Driven UI

A transformative legal tech startup in Greater London is seeking a Full-Stack Engineer (Back-End Leaning) to help build core infrastructure at speed. You will interact with an expert team to develop both front-end and back-end solutions, ensuring AI systems are intuitive. Ideal candidates must be skilled in Pyth ...

Full Stack Software Engineer — JS/Python in the Cloud

Java Script Works is looking for a Software Engineer to join their team in Manchester, United Kingdom. The role involves working with a flexible tech stack including JavaScript, Python, React, and AWS, and offers compensation ranging from £43K to £53K. The ideal candidate should have a passion for lear ...

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

A large enterprise is seeking a Senior Full-Stack Engineer for their trading platform in London. The ideal candidate will have over 8 years of software development experience and a strong background in TypeScript, Node.js, and React. Responsibilities include designing and maintaining high-performance features an ...

Senior Full Stack Engineer: Real Time UI & AWS Cloud

A dynamic technology firm in the UK is offering a key role in full-stack engineering focused on building secure, scalable web applications. The position requires a strong background in both frontend and backend development, with expertise in React, TypeScript, and AWS cloud services. Ideal candidates will excel ...

Remote Full Stack Engineer II (Python) — Build Data Tools

A leading market intelligence firm in Greater London is seeking a Full Stack Software Engineer to develop and maintain internal tools that streamline insights delivery. You will collaborate with technical consultants, design intuitive user interfaces, and implement backend services interacting with data platform ...

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 (Hybrid) | Node, React, API, Linux

A technology solutions company is seeking an experienced developer to join their team in Ware, England. Responsibilities include developing server-side applications with Node.js and Python, as well as designing user interfaces using modern JavaScript frameworks. The ideal candidate will have at least 3 years of ...

Full Stack Software Engineer at well funded healthtech SaaS

Overview This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Role Full Stack Software Engineer Company Description Company Descri ...

Hybrid Full Stack Engineer (Node/React) for FinTech Platform

Matched is looking for a Full Stack Developer to join their innovative FinTech team in Central London. This hybrid role involves designing and maintaining applications, collaborating across teams, and ensuring product quality through automated testing. The ideal candidate has proven experience in a sta ...

Senior Full Stack Engineer — Real Time, Scalable Remote UK

The Audio Programmer is seeking a Senior Full Stack Engineer who is passionate about music and technology. In this role, you will join a small team committed to building tools that connect artists with their fans. If you have a strong background in developing scalable systems and are looking to advance your c ...

Mid Level Full Stack Ruby on Rails Software Engineer

About the job We are on a mission to help people live more creative and fulfilled lives through joyful learning experiences. As a team we see ourselves as lifelong learners, not afraid to experiment or make mistakes, while living out our values of bringing joy, building confidence, leaving a posi ...

Full Stack Engineer — Greenfield, End to End for Millions

A leading software development company is looking for a Full Stack Engineer to join their team in Liverpool. This mid-senior level position offers an exciting opportunity to contribute to a large-scale greenfield project. The ideal candidate will have strong expertise in Symfony, AWS, and MySQL. The company prom ...

Senior Full Stack Engineer, GCP & AI Platform (Remote UK)

A technology consulting firm is seeking a Senior Full Stack Engineer to work on a cloud-native market intelligence platform. The role includes developing and maintaining scalable backend services and user-facing applications using Google Cloud Platform. Candidates should have strong skills in programming languag ...

Senior Full Stack Engineer (React/Node) — Lead & Grow SaaS

A leading fintech software start-up located in the City of London is seeking a full-stack software developer to optimize and build features across their award-winning web platform. The ideal candidate will bring 4-7 years of experience in web development, with a strong proficiency in technologies such as ReactJS ...

C# .NET Full Stack Engineer – Real Time Payments (Hybrid)

A technology firm in Sunderland seeks a C# Software Engineer to enhance their real-time payment systems while offering a hybrid work model. This mid-senior level role promises a salary up to £55k and a range of benefits including an onsite gym, restaurant, and parking. Ideal candidates will have solid C# .Net Co ...

Senior Full Stack Engineer (£80 150k + Equity) at Encord

Job Title: Senior Full-Stack Engineer (Front-End Leaning) at Encord Salary: £80-150k + Equity Company Description: Encord - Series C AI infrastructure platform backed by CRV and Y Combinator Job Description: You will lead development of Encord's sophi ...

Senior C#/.NET Full Stack Engineer – Lead Greenfield Projects

Platform Recruitment seeks a Senior Software Engineer (C#/.NET) in Newcastle. This role is with a high-calibre consultancy known for engineering excellence. You'll take ownership of crucial projects and collaborate with skilled engineers on complex distributed systems. The ideal candidate has strong ex ...

Full Stack Engineer (React/Python/C#) SaaS, Hybrid Glasgow

A leading renewable energy company in Glasgow is seeking a Software Engineer to join their Asset Performance Management team. The role involves full-stack development using Python, C#, React, and Node.js, contributing to an innovative SaaS application. Collaboration with product owners and designers is key, alon ...

Lead Full Stack Engineer: AI Powered PHP/Laravel & React

hedgehog lab seeks a Lead or Senior Full Stack Developer to build innovative AI-powered products that transform procurement management. You will leverage your expertise in PHP, Laravel, and React.js to design scalable applications that handle complex data and work closely with product and design teams. <p ...

Senior Frontend & Full Stack Engineer for AI Driven Energy

MFK Recruitment is seeking a Frontend Engineer / Full Stack Product Engineer in London to help build software that enhances customer interactions. This role involves owning customer-facing areas and working closely with stakeholders on product and engineering direction. The ideal candidate will have st ...

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 ...

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 ...

Senior Full Stack Engineer: Remote & End to End Delivery

Amdaris is seeking a Senior Software Developer to drive the development of both front and back end applications. You will work collaboratively to design scalable architecture, implement APIs, and ensure the highest code quality. The ideal candidate should possess strong Java proficiency and familiarity ...

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 VP, Full Stack Engineer – AI‑Driven FinTech Leader

A leading global financial services firm is seeking a Senior Vice President, Full-Stack Engineer to lead high-impact teams in London. This role involves end-to-end delivery of mission-critical software, elevating engineering standards, and collaborating closely with product and business stakeholders. Ideal candi ...

Senior Full Stack Product Engineer — Build Scalable, Delightful Features

Zinc Work is seeking a Senior Full Stack Product Engineer to expand its engineering team in Greater London. In this role, you will shape the technical direction of our platform, building high-quality features that delight thousands of customers. Your responsibilities include working closely with Produc ...

Senior Full Stack Engineer — Python/Django, Flutter, AWS AI

Client Server is looking for a Senior Full Stack Engineer / Developer to join their team in North London. The successful candidate will work on innovative AI workforce optimisation software that connects flexible temporary workers with hospitality clients, playing a key role in system transitions from monolit ...

Senior Full Stack Engineer — AI Driven Web Apps (Hybrid)

Materiom, an impact-focused tech startup based in Greater London, is seeking a full-time Senior Software Engineer to drive the development of data- and AI-heavy web applications. The role demands expertise in full-stack development, especially in front-end technologies like React and TypeScript, as well as backe ...

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 Full Stack Engineer, PHP/Laravel — AI Driven Platform

Superscript is seeking a senior product-focused engineer who can ship ambitious features while maintaining a reliable platform. The successful candidate will work closely with product teams and leverage AI tools to enhance delivery speed and quality. Responsibilities include end-to-end feature ownershi ...

Senior Full Stack Engineer for AI/ML Prototyping (London)

Autodesk is seeking a highly skilled Senior Full Stack Software Engineer to join our London team. In this role, you will develop and maintain both backend and frontend applications while supporting machine learning and AI systems. You'll collaborate with research scientists and ML engineers to rapidly prototype ...

Principal Full Stack Engineer – AI‑Driven SaaS, UK Remote

A leading UK software firm is seeking a Staff Engineer to drive full stack development for innovative SaaS products. The ideal candidate has over 5 years in TypeScript and strong experience with CI/CD practices. This role involves collaborating with stakeholders, mentoring teams, and ensuring product quality as ...

Full Stack Engineer – AI, Cloud & Client Delivery (UK Travel)

Accenture is seeking experienced engineers for their Software & Platform Engineering team to develop digital products collaboratively. You will engage directly with clients, delivering on full-stack engineering projects across various domains while leading delivery with a focus on quality and efficiency. ...

Full Stack Engineer Build the CMS powering karaoke magic

Sing King is seeking a Full Stack Engineer to enhance its CMS and develop reliable web-based tools. This role involves leading architecture changes, maintaining APIs, and designing workflows, supporting a creative team fostering joy in singing experiences. The ideal candidate will have strong skills in ...

Full Stack Engineer Scale a Data Driven Insurance Platform

A leading digital insurance provider in the UK is seeking a Full-stack Engineer to drive software development on their innovative platform generating substantial revenue. You will leverage Kotlin and Python for backend and data services, while creating engaging frontend applications using React and Typescript. T ...

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 .NET Engineer AI Driven Cloud Security

Eligo Recruitment is seeking an experienced senior Full Stack software engineer to develop a Cloud-based Security application for Microsoft technology. This role involves using .Net C# on the backend and Node JS on the frontend, ideally suited for someone with a strong IT Security application background. ...

GenAI Full Stack Senior Consultant: From POCs to Production

Capgemini Invent in Manchester is seeking a talented professional to join their team, focusing on building cutting-edge GenAI applications. The ideal candidate will develop proof-of-concepts and scale them to production-ready solutions, as well as design full-stack applications. This role requires expe ...

Full Stack Software Engineer ( Python / JavaScript ) | High Growth FinTech

About the Role Build and ship customer‑facing features across modern web applications. Work across the full development lifecycle, from design through to deployment. Collaborate with Product, Design and Engineering teams to solve real user problems. Contribute to scalable systems, clean architectu ...

.Net Full Stack Engineer Consultant/Senior Consultant Digital Excellence

At Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating closely with clients to deliver cutting‑edge solutions. Join us to drive transformation tailored to our client's challenges of today ...

Senior Full Stack Engineer: Python, React, AI Driven Infra

Spotify is looking for a Senior Fullstack Engineer to join a small, impactful team that evolves WhoSampled as a standalone product. You will contribute to a variety of projects across backend services, APIs, and web applications while overseeing the reliability and performance of the systems you build. <p ...

Hybrid Full Stack JS Engineer – Secure, Scalable Web Apps

Frontier Resourcing is seeking a Full Stack JavaScript Developer for a hybrid role, open to applicants across the UK. The position offers a salary range of £50,000 - £80,000 plus benefits. You'll collaborate in agile teams to create secure, high-performance digital products for crucial defense and nati ...

UNPAID VOLUNTEER Technology Officers (Data Scientists/DevOps/Full Stack)

THIS IS AN UNPAID VOLUNTEERING ROLE.Role Title: Technology Officers (Data Scientists/DevOps/Full Stack)Role Nature: VolunteerLocation: Home-basedThe Blockchain & Climate Institute (BCI) is an international volu ...

GenAI Full Stack Engineer Consultant / Senior Consultant Digital Excellence

ROLE DETAILSSBU - InventCU - Business Technology Global Grade - B At Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating ...

Lead Full Stack Engineer – React/.NET on AWS (Greenfield)

djr is seeking a hands-on Lead Full Stack Engineer (.NET / React / AWS) for a 6-month contract in Manchester. You will play a critical role in building a greenfield cloud-native platform from the ground up, focusing on high-quality user experiences and robust backend integration. The position requires ...

Senior Full Stack Go & React Engineer (Privacy First, Hybrid)

develop is looking for a Full Stack Engineer in Southampton to work on a pioneering wellness platform. This role involves building a consumer-facing product from the ground up with a strong emphasis on privacy and security. You will design backend services using Go and intuitive frontend applications with Rea ...

Lead Full Stack Engineer (TS/JS Node) – Hybrid Hampshire

A fast-growing UK SaaS technology company is seeking an experienced Technical Lead Full Stack Developer to shape its next generation of customer-facing platforms. This hybrid role offers the chance to lead technical delivery, contribute to design and architecture, and ensure high-quality production-ready code. Y ...

Remote Cloud & Full Stack Engineer — AI for Precision Med

An innovative AI company in Northern Ireland is seeking a Cloud & Full‑Stack Engineer to join their collaborative team. This role involves building a cloud-native platform for genomic data, emphasizing end-to-end ownership and innovative AI solutions. The position offers flexible fully remote working, a one-stag ...

Founding Full Stack AI Engineer for Agentic Sustainability Platform

annwn is seeking Founding Full Stack AI Engineers to build agentic systems from the ground up. The role involves designing AI systems that manage unstructured sustainability data, reason across complex domains, and continuously improve through feedback. The ideal candidates have 7+ years of experience ...

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