50,297+ Java React Developer Jobs in UK — Top Companies Hiring July 2026

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ServiceNow Developer / Lead Developer (SC Cleared)

Role: ServiceNow Developer / Lead Developer (SC Cleared) Location: London or Milton Keynes (Hybrid - flexible onsite arrangement) Duration: 6-month rolling contract Clearance: Active SC Clearance required Technology & Risk Recruitment are supporting a major UK Government greenfield ServiceNow programme and are b ...

ServiceNow Developer / Lead Developer (SC Cleared)

Role: ServiceNow Developer / Lead Developer (SC Cleared) Location: London or Milton Keynes (Hybrid - flexible onsite arrangement) Duration: 6-month rolling contract Clearance: Active SC Clearance required Technology & Risk Recruitment are supporting a major UK Government greenfield ServiceNow programme and are b ...

Full Stack Engineer

Tech Lead Full Stack FTE: 12 months | Location: Edinburgh Lead a cross‑functional full‑stack pod to design, build and migrate enterprise features from Angular to React on the front end and .NET Core on the back end deployed on Microsoft Azure. Own end‑to‑end delivery quality, architecture i ...

Senior Platform Engineer Core Platform (UK)

Leeds, England, United Kingdom; London, England, United Kingdom About Us Fanatics is building a leading global digital sports platform. We ignite the passions of global sports fans and maximize the presence and reach for our hundreds of sports partners worldwide by offering products and s ...

Java Sr Lead Software Engineer OMS, Equities

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Senior Lead Software Engineer at JPMorgan Chase within the Commercial and Investment Bank, you serve as a seasoned member of an agile team to design and deliver trusted marke ...

Software Engineer (C++, Java, Python)

Permanent Software Engineer (C++, Java, Python) Software Engineering Ampthill - Bedfordshire About the Role We have a need for a replacement Software Engineer with strong C++, Java, Python programming skills to join the Ampthill, B ...

Software Engineer Java Kafka API

Software Engineer / Developer (Java Kafka API) London / WFH to £90kAre you a Java technologist seeking a role where you can work on ground breaking technology, continually learning and progressing your career?You could be joining a global technology consultancy.What's in it for ...

Senior SDET – Java – AI/ML

Job Description You Will - Design Develop and Maintain test frameworks for automation. Define Automated Test Cases Provide suggestions to improve Automation and test processes Develop and maintain shares testing libraries Participate in team planning ...

Principal AI Software Engineer Java

Our client - a global automotive systems industry leader - is looking to hire an Principal AI Software Engineer (Java) to join them on an initial 6-month contract, with a view to transition to permanent employment.This role will be operting as part of a high-functioning team focused on AI-forward proje ...

AI Software Engineer (Java, Scala)

We offer a flexible working policy that supports a healthy balance between personal and professional wellbeing. This role requires in-office presence on Tuesdays & Thursdays to collaborate, connect, and learn from peers - while also maintaining the flexibility for meaningful work-life balance.Being ...

Lead Software Engineer Java & AI

Join the Graphite team and help deliver a best-in-class payments processing platform that powers the firm’s global expansion. You will work on mission-critical systems, leveraging your passion for technology and AI to create high-performing, low-latency solutions. Experience the excitement of building impactf ...

Principal Engineer (Backend focus Java)

Job Description: Principal EngineerRole Title: Principal Engineer (Tech Lead)Location: London (Hybrid - 3 days per week)Reporting to: Delivery Lead / Client Services DirectorCore Tech: Java, React, AWSWho We AreWe’re on a mission to cl ...

Java Solution Architect Insurance Sector

Lead and oversee the development of complex solutionsAI focused roleAbout Our ClientOur client is in the Insurance sector and is looking to grow their team with a Java Solution Architect. This is a hybrid role with 1-2 days a week in London.Job Description</ ...

Java Technical Specialist (Low Latency)

Java Technical Specialist (Low Latency)At a GlanceSenior individual contributor role in a high-growth prediction markets trading firmCore stack: Java, Kafka, Aeron, FIX Protocol exchange and clearing infrastructureSalary: £80,000 - £95,000 ...

Software Engineer (Java/Python/BPEL)

Software Engineer – Back-end (Java/Python/BPEL)Location: Farnborough, UKClearance Level: High DV - 'Developed Vetting' UNLEASH YOUR POTENTIAL Everything we do is built on a commitment to do the right thing for our customers, our people and our community. ...

Lead Software Engineer Java, AWS

Join us and take your career to new heights as a Lead Java Software Engineer. You’ll have the opportunity to influence major technology decisions and mentor talented engineers. We value your expertise and encourage you to push boundaries, solve complex challenges, and grow professionally. Our team thrives on ...

Principal Engineer (Backend focus Java)

Job Description: Principal EngineerRole Title: Principal Engineer (Tech Lead)Location: London (Hybrid - 3 days per week)Reporting to: Delivery Lead / Client Services DirectorCore Tech: Java, React, AWSWho We AreWe’re on a mission to cl ...

Software Engineer (Java/Python/BPEL)

Software Engineer – Back-end (Java/Python/BPEL)Location: Farnborough, UKClearance Level: High DV - 'Developed Vetting' UNLEASH YOUR POTENTIAL Everything we do is built on a commitment to do the right thing for our customers, our people and our community. ...

Software Engineer (C++, Java, Python)

Permanent Software Engineer (C++, Java, Python) Software Engineering Ampthill - Bedfordshire About the Role We have a need for a replacement Software Engineer with strong C++, Java, Python programming skills to join the Ampthill, B ...

Lead Software Engineer Java, AWS

Join us and take your career to new heights as a Lead Java Software Engineer. You’ll have the opportunity to influence major technology decisions and mentor talented engineers. We value your expertise and encourage you to push boundaries, solve complex challenges, and grow professionally. Our team thrives on ...

Senior Software Engineer Payments (Java)

Tesco UK • London • Full-Time • Apply by 06-Jun-2025 About the role The payments service team are the heart of Tesco Technology, serving 28 million+ shoppers in the UK and abroad. We deliver HTTP services that reliably manage payments at global scale, 24 hours a day every day. We also provide capabilities that d ...

AI Software Engineer (Java, Scala)

We offer a flexible working policy that supports a healthy balance between personal and professional wellbeing. This role requires in-office presence on Tuesdays & Thursdays to collaborate, connect, and learn from peers - while also maintaining the flexibility for meaningful work-life balance.Being ...

Senior Java Architect Cloud Migration

Job DescriptionAnticipated Contract End Date/Length: November 30, 2026Work Set Up: Hybrid (3 Days per Week Onsite - Mandatory)Our client in the Information Technology and Services industry is looking for a Senior Java Architect - Cloud Migration to le ...

Principal AI Software Engineer Java

Our client - a global automotive systems industry leader - is looking to hire an Principal AI Software Engineer (Java) to join them on an initial 6-month contract, with a view to transition to permanent employment.This role will be operting as part of a high-functioning team focused on AI-forward proje ...

Engineering Manager Java AI FinTech

This range is provided by Client Server. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Client Server Tech Recruiter - Software Engineering at Client-Server Engine ...

Java Software Engineer Systematic Trading

Java Software Engineer - Systematic Trading London | £120,000-£160,000 + bonus Java, Trading Execution, Python The Role This is a hands‑on Java engineering role sitting close to the trading desk, focused on the evolution of a proprietary execution platfor ...

Senior Software Engineer — Java & Python

A global financial institution is seeking an experienced Software Engineer to join their Global Technology team in Glasgow. The candidate will design and develop scalable systems, creating high-quality code while participating in an agile environment. Candidates should have hands-on experience with Java or Pytho ...

Senior (Java) Digital Software Engineer

A Senior Digital Engineer at Love2shop, you will play a key role in designing, building, and maintaining digital products that power our customer experiences across web and mobile. You’ll work at the intersection of engineering excellence, customer centric design, and help us deliver reliable, intuitive, a ...

Java Backend & BPMN Automation Engineer

iXceed Solutions is seeking a skilled individual to design, develop, and maintain business process automation solutions in Burgess Hill, England. In this role, you will build scalable backend applications with Java and Spring Boot while integrating workflows with external systems. The ideal candidate s ...

Software Engineer (Distributed Systems, Java)

Software Engineer (Distributed Systems, Java) London, England, United Kingdom, Software and Services The Apple Services Engineering team is one of the most exciting examples of Apple’s long-held passion for combining art and technology. We are the people who power the Apple TV, Apple Musi ...

Java Backend Engineer — Microservices & Cloud

Albany Beck is seeking a talented Software Engineer based in Sheffield. The ideal candidate should have proficiency in Java and a strong background in backend application development. This role involves delivering high-quality code, collaborating with a global team, and supporting the architecture aligned to ...

Software Engineer (Distributed Systems, Java)

Summary The Apple Services Engineering team is one of the most exciting examples of Apple’s long-held passion for combining art and technology. We are the people who power the Apple TV, Apple Music, Apple Music Classical, Apple Podcasts, and Apple Books. And we do it on a massive scale, meeting A ...

Java/Kotlin Software Engineer London

Our Story Hello there. We’re Zopa. We started our journey back in 2005, building the first ever peer‑to‑peer lending company. Fast forward to 2020 and we launched Zopa Bank. A bank that listens to what our customers don’t like about finance and does the opposite. We’re redefining what it ...

Tech Lead: Java & Node.js Modernization

Adecco is seeking a Lead Modernization Engineer Java / Node.js based in Wembley London. The role demands significant Java development expertise, particularly in Spring Boot and Microservices architecture, as well as a solid understanding of Azure Integration. The selected candidate will define coding s ...

Senior QA Automation Engineer (Java)

Emergn is a technology and management consultancy with a mission to set our clients free. No dependency. No short-term fix. Just teaching them the real cure to their problems, so they can stay ahead of their competitors now and forever. A different kind of consultancy like this needs a different ki ...

Java Software Engineer Systematic Trading

Java Software Engineer - Systematic Trading London | £120,000-£160,000 + bonus Java, Trading Execution, Python The Role This is a hands‑on Java engineering role sitting close to the trading desk, focused on the evolution of a proprietary execution platfor ...

Senior Java Engineer | Performance & Architecture

Rockstar Games is looking for a Mid/Senior Software Engineer specializing in Java to join our team in Dundee, United Kingdom. The ideal candidate should have a degree in computer science and a minimum of 3 years of Java EE development experience, with proficiency in Java 17. This full-time position offers compet ...

Software Engineer (Distributed Systems, Java)

Summary Posted: 15 Jun 2026 Weekly Hours: 35 Role Number: The Apple Services Engineering team powers Apple TV, Apple Music, Apple Music Classical, Apple Podcasts and Apple Books. Engineers on this team design, implement, optimise and improve systems that deliver personal ...

Java/Kotlin Software Engineer Manchester

Our Story Hello there. We’re Zopa. We started our journey back in 2005, building the first ever peer-to-peer lending company. Fast forward to 2020 and we launched Zopa Bank. A bank that listens to what our customers don’t like about finance and does the opposite. We’re rede ...

Java Software Engineer Security & Intelligence

Envitia operates at the heart of the UK’s most sensitive and high-profile operations. Our approach is entirely mission-focused, enabling customers to see more, decide faster, and act with confidence across complex domains. We deliver situational awareness and information advantage across C5ISR, fus ...

Software Engineer(Java+Jasper Report)

Job Description We are seeking a skilled and enthusiastic Software Engineer (Java) to join our development team. The ideal candidate will be responsible for designing, developing, testing, and maintaining high-quality software solutions based on business and technical requirements. < ...

Mid Level Core Java Engineers

About Us Travelfusion is the world's largest travel B2B content aggregator for low‑cost airline flights, enabling search and booking on leading online, business and leisure travel agents websites, mobile sites and call centres worldwide. The business also offers a wide range of full‑service airli ...

Core Java Engineer — Concurrency & Systems

Travelfusion is expanding its core Java Engineering team in London. We require a skilled Java engineer with expert-level knowledge of J2SE, at least three years of experience, and familiarity with web architectures. The role involves contributing to all phases of the development lifecycle, writing effi ...

Java Technical Specialist (Low Latency)

Java Technical Specialist (Low Latency) At a Glance Senior individual contributor role in a high-growth prediction markets trading firm Core stack: Java, Kafka, Aeron, FIX Protocol exchange and clearing infrastructure Salary: £80,000 ...

Senior Java Engineer, Distributed Systems

Elastic is hiring a Senior Software Engineer for their Elasticsearch - Distributed Systems team based in Greater London. You will focus on enhancing the performance, scale, and resilience of Elasticsearch, working on distributed systems and consensus algorithms. The ideal candidate has strong Java skil ...

Software Engineer Java Kafka API

London, Greater London | £80k - £90k per year Software Engineer / Developer (Java Kafka API) London / WFH to £90k Are you a Java technologist seeking a role where you can work on ground breaking technology, continually learning and progressing your career? You could be joi ...

Senior Java Engineer, Investments Platform

Dangote Industries Limited is looking for a talented product developer to lead the expansion of customer investment offerings. This role requires strong technical skills, a focus on user experience, and the ability to manage complex projects. The starting salary for this position ranges from £105,000 t ...

Senior Software Engineer Payments (Java)

Tesco UK • London • Full-Time • Apply by 06-Jun-2025 About the role The payments service team are the heart of Tesco Technology, serving 28 million+ shoppers in the UK and abroad. We deliver HTTP services that reliably manage payments at global scale, 24 hours a day every day. We also provide capabilities that d ...

Senior Java Programmer – London, UK

Java Lead Programmer – London, UK Leading Design Engineering Company. Specialist engineers to the energy sector. A fast growing, innovative and exciting company to work for, that offers excellent chances for technical and personal development. A lead development en ...

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