50,322+ Java React Developer Jobs in UK — Top Companies Hiring July 2026

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Senior Java Backend Engineer for Scalable Quote API

A leading retail company in London is seeking a Java engineer to enhance developer experience and modernise its core systems. You will work on building components for a significant transformation project, with responsibilities including CI/CD pipeline management and migration to cloud services. Ideal candidates ...

Java Full Stack Engineer Cloud Microservices & APIs

N Consulting Limited is looking for a Full Stack Java Developer to design and develop scalable Spring Boot microservices. You will create secure REST APIs and collaborate across product and cloud teams to ensure operational stability. The ideal candidate should have strong Java and Spring Boot experien ...

Java Backend Engineer — Spring Boot, Cloud & DevOps

Sivara GmbH in Welwyn Garden City is seeking a Backend Developer to design high-quality Java services using Spring Boot. You will work in a hybrid environment and take ownership of production systems, ensuring their reliability. Ideal candidates will have several years of experience in Java, strong Dev ...

Senior Java Engineer Low Latency Trading Systems

TP ICAP Group Services Ltd is seeking a Senior Java Developer based in the City Of London. The role involves designing and implementing low-latency trading system components while collaborating with diverse teams to ensure optimal performance and stability. Candidates should have substantial experience ...

Senior Java Engineer Microservices & Cloud

A leading software development company in Greater London is seeking a Senior Java Developer to contribute to the development of Back Office and integration services. You'll work on greenfield projects, collaborate with cross-functional teams, and engage in aspects from architecture to deployment. The ideal candi ...

Senior Java Engineer for Quote API — Hybrid, High Impact

A prominent retail company is seeking a Java Engineer to join the Engineering Enablement team in London. This role involves building and maintaining components critical for the modernization of our pricing and promotions platform. The ideal candidate should have strong experience in Java 8+, cloud services, and ...

Senior Java Engineer Camunda & Microservices

Sivara GmbH in London (Vauxhall) is seeking an experienced Java Developer to join our implementation team. The ideal candidate will design and develop Camunda-based process automation solutions and collaborate with analysts to refine business processes. You should have strong experience with Java, Spri ...

Senior Java Engineer — Backend & Microservices Lead

Inspired-Thinking-Group- in Birmingham is seeking a Java Developer to join its innovative backend development team. You will be responsible for developing complex Java applications, collaborating with Business Analysts and Project Managers in an Agile environment. The ideal candidate has demonstrable e ...

Java Backend Engineer Spring & Kafka, Game Tools

Rockstar Games in Dundee is looking for a Java Backend Developer with over 3 years of experience. In this role, you will design and implement solutions to meet fast-paced game development challenges, collaborate with various technology teams, and develop a strong understanding of the systems used across Rockstar ...

eDV Cleared Java Engineer: Microservices & Cloud

A leading recruitment agency is seeking an eDV-cleared Java Developer to join a skilled engineering team in the UK. The role involves hands-on development of complex software systems utilizing modern DevOps practices. Ideal candidates are experienced in Java, Spring, and CI/CD pipelines, and have a passion for w ...

Senior Java Engineer: Hybrid Cloud & AI Solutions

IBM is seeking a Senior Java Developer based in Greater London to support our Public Sector and Defence clients. The role involves designing and developing high-quality applications using Java/JEE and modern web technologies. You will be responsible for integrating systems, applying best practices like TDD, and ...

Java Engineer: High Performance Trading Systems

A finance technology firm in Greater London is looking for a Java Developer to enhance electronic trading systems in a fast-paced environment. The role involves developing backend services that ensure high-volume trading, improving performance and scalability, and working closely with product and trading teams. ...

Senior Java Microservices Engineer (Blockchain) – London

A financial services client is seeking a Senior Back-End Developer skilled in Java Microservices to work primarily onsite in London. You will design and maintain critical back-end components in a microservices architecture, collaborating with teams to deliver high-performance applications. This role requires exp ...

Remote Lead Java & Spring Boot Engineer

Sivara GmbH, based in Greater London, is seeking a Java Developer to lead a team in developing innovative solutions for Central Government. The ideal candidate will have strong expertise in Java and Spring Boot, experience with cloud services, and valid SC Clearance. This remote role offers competitive ...

Senior Java Security Engineer Enterprise & IAM Expert

Zensar Technologies is looking for an experienced Java Developer based in Greater London. The role demands at least 7 years of hands-on experience in Java enterprise environments, and expertise in building enterprise financial solutions. Responsibilities include investigating security findings and upgrading l ...

Java Software Engineer Build High Quality, Scalable Apps

ELLIOTT MOSS CONSULTING PTE. LTD. is looking for a motivated Software Engineer – Java Developer to join their team in Penarth, Wales. The role involves developing high-quality Java applications, ensuring adherence to coding standards, and performing thorough testing. Applicants should have 1-4 years of ...

Senior Java Full Stack Engineer for AI Powered Platforms

Fimador is seeking a Full Stack Java Developer in Greater London. You will help modernize industry-leading solutions while mentoring and guiding a team of developers. The ideal candidate has over 5 years of experience in software engineering, particularly in Java development, and a strong focus on lead ...

Java Software Engineer for AI Driven SaaS (Remote)

Eden Scott is looking for a Software Developer in Glasgow, offering a hybrid work model. You'll design and develop scalable Java-based applications while contributing to technical direction in a forward-thinking engineering team. The role requires 4+ years of commercial software development experience, ...

Hybrid Full Stack Engineer — Java & Cloud Infra

Telstra Associates is seeking a Full Stack Java Developer for a hybrid contract role based in Dundonald, Northern Ireland. This position requires an onsite presence in Belfast three days a week. You will play a crucial role in a leading global Tier 1 financial institution, contributing to significant technolo ...

QA Engineer Fintech Selenium Java in London Quant Capital

Job Opportunity Details My client is based in Central London, and this role offers a hybrid approach - 1 day a week in the office, potentially 4 days per month in bulk. Skills Required QA Java Engineer Java Developer React.JS Growth JavaScript C ...

Senior React Native Engineer – Hybrid Mobile Apps Impact

A leading recruitment firm is seeking a Mid-Senior Mobile Developer to join their team. You will own the development of iOS and Android apps built with React Native, collaborating closely with product managers and designers to deliver top-notch mobile experiences. The ideal candidate has at least 5 years of expe ...

Full Stack Engineer – .NET/React, Greenfield, Hybrid (London)

Caspian One is seeking a .NET / React Developer for a fully greenfield project in London. This role involves designing and deploying a new trade monitoring system used by front office traders. The ideal candidate will have 5+ years of experience, strong .NET and React skills, and a startup mindset. Thi ...

Front End Architect (React/TypeScript) – Hybrid

Sivara GmbH, based in Blackburn, is seeking a Front-End Developer to join their technical team. The role involves defining front-end architecture, building secure codebases with React and TypeScript, and collaborating with product and marketing teams. The company offers a hybrid working model, structured trai ...

Senior React Native Engineer – Hybrid Mobile Apps Impact

A leading recruitment firm is seeking a Mid-Senior Mobile Developer to join their team. You will own the development of iOS and Android apps built with React Native, collaborating closely with product managers and designers to deliver top-notch mobile experiences. The ideal candidate has at least 5 years of expe ...

C# & React Front Office Engineer Global Markets

Talan Group is seeking a skilled C# Developer with REACT experience to join their delivery teams focused on Front Office platforms within Global Markets. This role entails designing, building, and enhancing applications to support fast-paced trading environments. As a part of a distributed agile enviro ...

Front Office Java Developer Up to £130k base salary + Bonus + Package

Front Office Java Developer - Up to £130k base salary + Bonus + Package Salary: Up to £130k base salary + Bonus + Package Location: London (Hybrid) Skills Required: Extensive Java experience (ideally with versions up to 21) This firm is an elite investment institution that ...

HealthTech VP of Engineering — Equity & Bonus

Java Script Works is seeking a VP of Engineering in Cambridge, UK. The role involves leading the engineering team focused on HealthTech solutions, ensuring performance through quantifiable OKRs. Candidates should have experience with React, Node.js, and AWS, alongside management skills. The position offers compe ...

UI Architect: Design Systems & React Components

Java Script Works is seeking a full-time UI Architect based in Greater London. The successful candidate will utilize TypeScript, React, and Tailwind CSS to create modular, reusable, and scalable UI components. Responsibilities include architecting component libraries and enforcing design principles. Co ...

Senior Software Engineer Payroll (Python/Django/React)

Java Script Works is seeking a Senior Software Engineer for a contract role in London. The ideal candidate should demonstrate strong written and verbal communication skills and effectively collaborate across diverse functional teams. Experience with Python, Django, and React is a plus. This position offers compe ...

HealthTech VP of Engineering — Equity & Bonus

Java Script Works is seeking a VP of Engineering in Cambridge, UK. The role involves leading the engineering team focused on HealthTech solutions, ensuring performance through quantifiable OKRs. Candidates should have experience with React, Node.js, and AWS, alongside management skills. The position offers compe ...

Senior Frontend Developer

Are you a frontend software developer with experience in React or Angular? If yes, this could be your ideal next role! A well-funded, research-led technology start-up is seeking a Mid–Senior Front-End Developer to join its growing team in Cambridge. This is a high-impact role where you’ll t ...

Software Engineer (Full stack Developer)

We are seeking a motivated Full Stack Developer with AI/ML exposure to join our growing software engineering team. In this role,you will design and build modern applications that leverage artificial intelligence to deliver smarter, more efficient user experiences. This position is ideal for engineer ...

Senior Full Stack Software Engineer (eDV)

Locations: Gloucester, London or Manchester We’re supporting a leading defence organisation delivering advanced technology solutions into the UK’s defence and national security sector. Due to continued growth, they are looking for eDV (Enhanced DV) Cleared Full Stack Developers at multipl ...

React.js UI Developer Low Latency

Job Description: UI Developer (React, TypeScript and Low‑Latency) Please refer to HCLTech’s Candidate Data Privacy Notice. Role Overview We are seeking a highly skilled UI Developer with strong expertise in building time‑critical, high‑availability, and high‑performance application ...

React.js UI Developer

Job Description: UI Developer (React, TypeScript and Low‑Latency) Role Overview We are seeking a highly skilled UI Developer with strong expertise in building time‑critical, high‑availability, and high‑performance applications. The ideal candidate will have hands‑on experience acr ...

Dynamics 365 CRM Developer C# & JavaScript Specialist

Java Script Works is on the lookout for an MS Dynamics CRM/365 Developer based in Kettering, United Kingdom. This full-time position requires strong expertise in JavaScript, MS Dynamics CRM 2016, and Agile practices. The developer will work on developing and implementing solutions, ensuring quality and performan ...

Senior Java Quant Trading Engineer: Low Latency, High Impact

A leading Quant Trading firm in London is seeking a Senior Java Developer to design and build low-latency trading systems. You will work with traders and quants to optimize performance and tackle complex engineering challenges in a fast-paced environment. The ideal candidate has expert-level Java skills, proven ...

Java Technical Lead

Working 2 days on site in LondonWorking for a leading consultancyAbout Our ClientThis opportunity is with a medium-sized organisation operating within the business services industry. The company is dedicated to delivering high-quality solutions and values technical exper ...

Lead Java Engineer

Job DescriptionWe are looking for an accomplished and experienced Java Engineering Lead/Manager to lead our UKBI engineering team. Reporting into our Engineering Director, you will have a strong background in Java, microservices, serverless architecture, Docker, EKS and search technologie ...

Java Software Engineer

Contractor/Temp Java Software Engineer Engineering Ampthill - Bedfordshire About the Role We have a need for additional Software Engineers with Java programming skills to join the Ampthill, Bedfordshire Engineering team. Required skills, ...

Lead SDET – Java

Job Description The Role As a lead SDET for this communications scale up you will be focused on leading a small highly focused team responsible for this businesses robust enterprise systems. You will work with appropriate stakeholders to ensure testing strategies and process ...

Backend Java Engineer

Java Engineer – Backend & Search PlatformLocation: London, UK**PLEASE NOTE SPONSORSHIP IS NOT PROVIDED FOR THIS ROLE - MUST HAVE FULL RIGHT TO WORK IN THE UK **About the RoleYou’ll be working on a large‑scale backend platform that powers advanced search, ...

Lead Java Engineer

Join us to shape the future of financial technology and make a meaningful impact on your career. You’ll collaborate with talented professionals, solve complex challenges, and help build trusted market-leading products. We value creativity, inclusion, and continuous learning, offering you the opportunity to gr ...

Senior Java Engineer

Location: Cardiff Hybrid / Flexible WorkingSalary: Up to £55,000 dependant on experience plus up to 20% annual bonus and benefitsStability, flexibility and the opportunity to work on greenfield projects within one of Europe’s leading fina ...

Senior Java Engineer

About the job you're consideringCapgemini are recruiting highly skilled Senior Engineers to join their dynamic team, delivering solutions for a major public sector client. This is an opportunity to work on meaningful projects that impact millions of people, in an environment that v ...

Java Software Engineer

Working for a leading Insurance Consultancy2 days on client site in LondonAbout Our ClientThe hiring organisation is a well-established and respected entity within the business services industry. As a medium-sized company, they focus on delivering innovative technology s ...

Senior Java Engineer

Do you enjoy designing and building scalable backend systems in the cloud - with Java at the core and AWS powering it all?My client is looking for a Senior Java Engineer to join a highly capable engineering team working on modern, cloud-native systems. This role of ...

Java Software Engineer

Purpose of the role To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues. Accountabilities Development and delivery of high‑quality software solution ...

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    Java React Developer Jobs in United Kingdom Job Search Guide, Trends and Insights