36,699+ Java React Developer Jobs in UK — Top Companies Hiring July 2026

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Senior Backend Engineer – Java, Cloud, Multi‑Team Leader

Capital One is looking for a Staff Software Engineer - Back End to drive the technical strategy and lead multiple teams in their London office. You'll own significant business outcomes while fostering engineering excellence. This role includes mentoring engineers and ensuring alignment with business ob ...

Senior Software Engineer II GraphQL/Java Spring Flexible

LexisNexis Risk Solutions is seeking a Senior Software Engineer II (Java / Spring) to build scalable, high-performance data-driven applications. You'll work on the Search and AI Platform, delivering innovative solutions that accelerate scientific discovery. The ideal candidate has expertise in Java, Sp ...

Senior Backend Engineer – Java/Spring Boot & Scalable Systems

Aristocrat in the City of Westminster seeks a Senior Software Engineer (Backend) to design and build scalable cloud-based services using Java and Spring Boot. This role demands strong technical execution, system design capabilities, and mentoring experience. Candidates should have 5–8+ years in software developm ...

Senior QA Automation Engineer (Java) — Drive Quality & Growth

Emergn is seeking a Senior QA Automation Engineer to ensure product quality and reliability. You will work within an agile team, creating and maintaining test suites, performing both manual and automatic testing, while leveraging your experience in automation testing. The ideal candidate has at least 5 ...

Senior Backend Engineer (Java) — Hybrid London, Scale & Impact

Rightmove is looking for a Senior Backend Engineer to join their team in London. This role involves designing innovative solutions and integrating third-party platforms to enhance our service delivery. The successful candidate will engage in meaningful projects that impact users significantly. You shou ...

Staff Java/C++ Engineer – Low Latency FinTech Platform

Ocho People is seeking a Staff Java / C++ Engineer to work in Belfast, Northern Ireland. This hybrid role involves driving the evolution of low-latency, high-throughput exchange systems. The successful candidate will work on high-stakes financial technology alongside a world-class engineering team. You ...

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 ...

Staff Software Engineer Java Backend in Belfast Visa

Staff Software Engineer - Java Backend Belfast, UnitedKingdom Posted 9 months ago Tech Stack Software Engineer Backend Java JavaScript API Development Banking SME Knowledge and Expertise Required SME ...

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, ...

Java Engineer Up to £115,000 + Bonus London/Hybrid

Our client is an exciting and rapidly scaling fintech technology company building next-generation data infrastructure for modern financial markets. They are developing a high-performance data distribution platform designed to move, process, and deliver vast volumes of critical information in real time. </p ...

Senior Lead Software Engineer — Java/Python, Data Platform

A leading global financial services firm seeks a Senior Lead Software Engineer to design and enhance data engineering solutions. You'll collaborate with agile teams to develop innovative technology products, contributing to technical strategy and fostering a culture of diversity and inclusion. Ideal candidates w ...

Senior Java Engineer – Cloud Microservices & DevOps (Cardiff Onsite)

Amber Resourcing Ltd is looking for a Senior Java Engineer in Cardiff to join a team focused on complex, enterprise-scale solutions. The position requires Java and Spring Boot expertise, along with knowledge in CI/CD, Docker, and Kubernetes. You will contribute to architecture while building scalable a ...

Java/Clojure Software Engineer — OTC Derivatives Data Platform

S&P Global, Inc. is looking for a Java/Clojure Engineer in London. You will develop and enhance applications, work closely with product specialists, and maintain high software standards. Ideal candidates have a Bachelor's degree in Computer Science and around 3 years of experience in Java platforms. Th ...

Hybrid Backend Software Engineer – Java & Spring Boot (London)

Rightmove, the UK's largest property portal, is seeking an experienced Software Engineer to work in a hybrid role based in London. You will join cross-functional teams focused on developing scalable backend services using modern technology stacks like Java 17+, Spring Boot, and Kafka. In this role, you ...

Senior Software Engineer Java/Angular for Public Sector

Amber Resourcing Ltd in Cardiff is looking for Software Engineers to join a sustainable digital programme supporting UK public sector initiatives. The candidates can work in a close-knit team where they will contribute to modern tech stack projects using Java 21 and Angular 16+. Key responsibilities in ...

Senior Lead Java Engineer Low Latency Risk Platform

LSEG is looking for a Lead Software Engineer to join their World Check One team in Nottingham. This role demands an experienced engineer who can lead the design and development of low-latency screening systems while collaborating with various stakeholders. The individual will play a critical role in driving a ...

Senior DevOps Engineer Java/Spring, AWS & CI/CD

Expleo Group is looking for a software engineer based in Manchester, specializing in Java and Spring. The role entails delivering scalable software and driving DevOps best practices in a collaborative environment. The ideal candidate will have strong experience with AWS, CI/CD pipelines, and various da ...

Java Full Stack Engineer Consultant Digital Excellence London

Java Full Stack Engineer - Consultant - Digital Excellence - London Reference Code: -en_GBContract Type:PermanentProfessional Communities: Strategy & Transformation At Capgemini Invent, we believe difference drives change. As inven ...

Remote Senior Java Engineer – AI Driven Trading Platform

Harvey Nash Group is seeking a Senior Java Engineer to join their team to modernise legacy services using advanced AI tools. This fully remote role offers a competitive salary of up to £120,000 along with a bonus (c25-35k) and pension. Ideal candidates will have experience in Java back-end software eng ...

Lead Java Software Engineer in FX Payments tech

Job Description Join us to shape the future of payments technology and make a real impact on your career. As part of our agile team, you'll help build trusted solutions that power global transactions. You'll have the opportunity to grow your skills, collaborate with talented colleagues, and contr ...

Lead Software Engineering Java ETT – Options Algorithmic Trading

Are you ready to make a meaningful impact and advance your career in a dynamic, fast-paced team? At JPMorganChase, you’ll help build market-leading technology products that power our electronic trading business. You’ll work alongside talented professionals who value creativity, collaboration, and continuou ...

Senior Java Engineer for AI‑Driven Research Platform

Elsevier is seeking a Senior Java Software Engineer II located in Oxford, UK. This role focuses on building capabilities to support scientific researchers in their publication processes by evolving technology, including AI solutions. The ideal candidate will design and deploy cloud-based applications, ...

Java Backend Engineer II – Real‑Time Data Platform

WeAreTechWomen is seeking a Software Development Engineer II to join our collaborative team in Welwyn Garden City. You will work on high-performance event-driven services, enhancing customer experiences through backend development. We're looking for candidates with a working knowledge of Java and a wil ...

Java Software Engineer – Full‑Stack, Hybrid, Fast Growth

Netcompany Group A/S in Leeds is offering a role in technology consultancy focused on the full software development lifecycle. This position involves hands-on coding and working with technologies such as Java, .Net, C#, and more. You will collaborate with a talented team and be supported by a lead manager. </ ...

Remote Java Engineer – FIX APIs for Trading Platform

IG KnowHow is seeking a Java Engineer to join the IG Prime division. You will develop and maintain high-performance FIX APIs to facilitate institutional trading while ensuring reliability and resilience. The ideal candidate will have around 5 years of Java development experience, strong skills in async ...

Senior Backend Engineer (Java/Kotlin) – FinTech, Scalable Cloud

TwinThread seeks a Software Engineer III for Backend Engineering focused on Java/Kotlin in London. This role emphasizes collaboration, problem-solving, and adaptability within a team. You will be responsible for building scalable and reliable solutions, investigating issues, and ensuring high performance. A stro ...

Lead Java AI Engineer: AWS, Data & Agentic AI

JPMorganChase is seeking a Lead Software Engineer to design and deliver cutting-edge technology products that transform business operations. You will develop advanced AI and data engineering solutions and support critical business objectives. The ideal candidate possesses deep expertise in software ...

Senior C++/Java FX Platform Lead – Low Latency

SwiftCruit is seeking a Lead Software Engineer who will be responsible for designing and building mission-critical FX market infrastructure using C++ and Java. The role emphasizes technical leadership while delivering robust solutions to complex problems. As a senior individual contributor with 10+ yea ...

Backend Engineer (Java) for Scalable, Cloud‑Native Systems

Dormont Manufacturing Co is seeking a Backend Engineer to collaborate within the Symphony engineering group. The role emphasizes Java development and operational excellence in a multi-cloud environment. Responsibilities include architecting backend services and supporting automation in deploying Sympho ...

Full Stack Java Spring + Angular Engineer (London Hybrid)

Computer Futures is seeking a skilled engineer for a hybrid role in London focused on building scalable, cloud-native applications. You will be responsible for developing full stack applications using Java Spring Boot and Angular, as well as implementing microservices and REST APIs. This 12-month contr ...

T24 Migration Engineer TAFC to TAFJ, Oracle/Java

VIQU IT Recruitment in the United Kingdom is seeking a T24 Migration Engineer to lead and support migration activities across complex environments. This hands-on role requires experience with Temenos T24, including database migration and TAFJ architecture. The position involves performance tuning, envi ...

Senior Java/Python Engineer – Risk & Trading Backend (Hybrid)

Hunter Bond is seeking a Senior Java / Python Engineer in London to help build critical backend platforms for financial systems. You will be part of a high-performing team focused on scalable engineering, supporting complex data workflows. The ideal candidate should have strong experience with Java and ...

Senior Software Engineer Rust/Cpp/Java/Python | Equity

Job Search Place Limited is seeking a Senior Software Engineer proficient in Rust, C++, Java, or Python for their London office. The role involves designing and building core software platforms, collaborating with users, and interfacing with autonomous systems. With a competitive salary package up to £ ...

Senior Full Stack Dev (Android/Java) – Fintech, Hybrid

Trust Payments is looking for an experienced Senior Software Developer to join our Trust Retail team in a hybrid role based in Bournemouth. You will develop solutions for retail, EPOS, stock management, and customer engagement while ensuring robust application quality. The successful candidate will hav ...

Senior Software Engineer II GraphQL/Java Spring Flexible

Overview LexisNexis Risk Solutions is seeking a Senior Software Engineer II (Java / Spring) to build scalable, high-performance data-driven applications. You'll work on the Search and AI Platform, delivering innovative solutions that accelerate scientific discovery. Responsibilities ...

Senior Software Engineer Java Engine by Starling (IT)

Overview At Engine by Starling, we are on a mission to find and work with leading banks worldwide who have the ambition to build rapid growth businesses on our technology. Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling, and two years ag ...

Senior Lead Software Engineer – Java, Scala, Big Data

As a Senior Lead Software Engineer at JPMorgan Chase within the Corporate Technology - Liquidity Risk line of business, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. Drive significant bus ...

Senior Java Engineer — Fixed Income Algo Trading (Hybrid)

Citi is seeking a proficient Software Engineer for their Fixed Income Algo technology team in London. You will design and develop high-performance algo trading platform components, collaborating with Traders and Product Managers, and ensuring reliability and scalability. The position offers a hybrid wo ...

DV Cleared Java Full Stack Engineer Cloud & Microservices

A global technology and transformation partner in London is seeking a DV Cleared Java Full Stack Engineer. In this mid-senior level role, you will drive business outcomes by creating digital solutions and working with diverse technology stacks. You must have substantial experience with Java (Spring Boot) and be ...

Senior Payments Platform Lead Java/Spring Boot, Cloud

As a Lead Software Engineer at JPMorgan Chase within the CIB Payments Technology Team, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. As a core technical contributor, you are responsible f ...

Senior Backend Engineer Java 21 Spring Boot Microservices

A leading fintech company is seeking a Senior Back-end Engineer in London to build the core infrastructure for their platform. You will design scalable microservices using Java 21 and Spring Boot, ensuring high performance and reliability. The ideal candidate has over 7 years of back-end development experience, ...

Senior Java Payments Engineer — Build Secure, Scalable Systems

A global financial services firm in London is seeking a Software Engineer III to join an agile team in delivering secure and innovative technology solutions. The role involves executing software solutions, developing high-quality production code, and contributing to projects across multiple technical areas. Idea ...

Senior Java Full Stack Engineer – Secure, Scalable FinTech

A leading financial services firm is looking for a Software Engineer III in Bournemouth, responsible for designing and delivering innovative technology products. The successful candidate will have extensive experience in software development, especially using Java and Spring Boot, and knowledge of AWS services. ...

Software Engineer III Low Latency Java and Kafka

Be an integral part of a team that's constantly pushing the envelope to enhance, build, and deliver cutting‑edge technology products. Join JPMorgan’s Liquidity and Account Solutions Technology team and be part of a dynamic group dedicated to delivering innovative technology products. We are seeking ...

Senior Test Engineer Java Automation & CI/CD (London)

LinuxRecruit is looking for a Senior Test Engineer to join their team in London. The ideal candidate will have a solid understanding of automation and a strong preference for coding in Java. This full-time position offers a competitive compensation package ranging from £70K to £80K. The role will involve working ...

Senior Java Platform Engineer | Spring Boot, K8s, Cloud

NextWave Consulting Ltd is seeking a Senior Software Engineer in the UK with hybrid work options. The successful candidate will lead the development of a scalable Data Fabric platform, focusing on Java and Spring Boot microservices while mentoring team members. Required skills include hands-on experience in CI/C ...

Lead Java Software Engineer in FX Payments tech

Job Description Join us to shape the future of payments technology and make a real impact on your career. As part of our agile team, you’ll help build trusted solutions that power global transactions. You’ll have the opportunity to grow your skills, collaborate with talented colleagues, and contr ...

Java Fullstack Engineer Financial Crime in Glasgow Barclays

Java Fullstack Engineer - Financial Crime Location: Glasgow, United Kingdom Posted about 1 year ago Job Overview Join our dynamic Technology team as a Java Fullstack Engineer at AVP level and be involved in shaping the future of financial crime prevention through ...

Senior Java Engineer Scale SaaS in Insurtech (London)

A leading B2B SaaS technology company in London is seeking a Senior Java Engineer with expertise in Spring Boot and cloud-based systems. You'll design and scale products, mentor colleagues, and contribute to technical initiatives. The role offers a salary of up to £110,000 plus bonuses and excellent pension bene ...

Software Engineer III Low Latency Java and Kafka

Job Description Be an integral part of a team that's constantly pushing the envelope to enhance, build, and deliver cutting‑edge technology products. Join JPMorgan’s Liquidity and Account Solutions Technology team and be part of a dynamic group dedicated to delivering innovative technology produc ...

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