44,130+ Java React Developer Jobs in UK — Top Companies Hiring July 2026

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Mid Senior Founding Full Stack Product Engineer

About theOffer Our Client is building the world's first AI-native cybersecurity operating system. As increasingly capable AI systems become part of critical infrastructure, security challenges are evolving faster than traditional solutions can keep up. Our Client is developing nex ...

Mid Senior Founding Full Stack Product Engineer

About theOffer Our Client is building the world's first AI-native cybersecurity operating system. As increasingly capable AI systems become part of critical infrastructure, security challenges are evolving faster than traditional solutions can keep up. Our Client is developing nex ...

Mid Senior Founding Full Stack Product Engineer

About theOffer Our Client is building the world's first AI-native cybersecurity operating system. As increasingly capable AI systems become part of critical infrastructure, security challenges are evolving faster than traditional solutions can keep up. Our Client is developing nex ...

Mid Senior Founding Full Stack Product Engineer

About theOffer Our Client is building the world's first AI-native cybersecurity operating system. As increasingly capable AI systems become part of critical infrastructure, security challenges are evolving faster than traditional solutions can keep up. Our Client is developing nex ...

Mid Senior Founding Full Stack Product Engineer

About theOffer Our Client is building the world's first AI-native cybersecurity operating system. As increasingly capable AI systems become part of critical infrastructure, security challenges are evolving faster than traditional solutions can keep up. Our Client is developing nex ...

Mid Senior Founding Full Stack Product Engineer

About theOffer Our Client is building the world's first AI-native cybersecurity operating system. As increasingly capable AI systems become part of critical infrastructure, security challenges are evolving faster than traditional solutions can keep up. Our Client is developing nex ...

Mid Senior Founding Full Stack Product Engineer

About theOffer Our Client is building the world's first AI-native cybersecurity operating system. As increasingly capable AI systems become part of critical infrastructure, security challenges are evolving faster than traditional solutions can keep up. Our Client is developing nex ...

Mid Senior Founding Full Stack Product Engineer

About theOffer Our Client is building the world's first AI-native cybersecurity operating system. As increasingly capable AI systems become part of critical infrastructure, security challenges are evolving faster than traditional solutions can keep up. Our Client is developing nex ...

Java Full Stack Engineer Senior Consultant Digital Excellence London

Java Full Stack Engineer-Senior Consultant-Digital Excellence - London Reference Code: -en_GBContract Type:PermanentProfessional Communities: Strategy & TransformationROLE DETAILS SBU - Invent <stron ...

VP, Senior Full Stack Engineer (Python/Java) for Trading

Citi is seeking a Vice President level developer for the Strategic Equity Solutions team in Greater London. This role focuses on creating innovative trader workflow tools and involves direct engagement with global business users. Key responsibilities include designing high-performance software, mentori ...

Defence Software Engineer (C#/Java) Bristol, 4 Day Week

Sivara GmbH is a leading defence organization based in Bristol, seeking three Software Engineers for an initial 12-month contract. The role involves developing application-level software and working collaboratively on a complex new Command and Control capability. Opportunities for a four-day work week ...

Java & AWS SDE — Build Scalable Cloud Services for IoT

Ring is seeking a passionate Software Development Engineer to create next-generation apps and cloud services. You will work closely with product managers and engineers to design and develop features that enhance customer experience and interaction. This role offers the chance to impact the setup proces ...

Senior Software Engineer (Rust, C++, Java, Go or Python)

Overview Senior Software Engineer (Rust, C++, Java, Go or Python) Software Engineering Up to £150k base + meaningful equity London Senior Software Engineer - Rust, C++, Java or Python - London - Up To £150k base + meaningful equity Are you excited by solv ...

Senior Software Engineer (Rust, C++, Java, Go or Python)

Senior Software Engineer (Rust, C++, Java, Go or Python) Software Engineering Up to £150k base + meaningful equity London Senior Software Engineer – Rust, C++, Java or Python – London – Up To £150k base + meaningful equity Are you excited by solving technic ...

Senior Staff Engineer (Scala/Java) – Hybrid AI Scale up

Morson Human Resources Limited is seeking a Senior Staff Engineer (Scala or Java) in Manchester. This role offers the chance to lead engineering efforts within a dynamic AI technology scale-up. Your responsibilities will include mentoring engineers, defining engineering strategies, and driving software ...

Senior Lead eSoftware Engineer Equities Algo Trading Java VP

Senior Lead Software Engineer - Equities Algo Trading - Java - VP Location: London, United Kingdom Job Description 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 a ...

Backend Java Engineer II – Real Time Data Platform (Hybrid)

Tesco - Corporate located in Welwyn Garden City is seeking a Software Development Engineer II for a hybrid work environment. The role focuses on developing backend event-driven features using Java and Spring Boot. Ideal candidates will have a solid grounding in Java and an eagerness to learn more about backen ...

Back‑Office Software Engineer (COBOL/Java) – 12‑Month FTC

Booker in Eccles is seeking a Software Development Engineer to design and maintain resilient back-office systems. This 12-month fixed-term opportunity will involve working with technologies such as COBOL and Java within a Linux environment to ensure efficiency and performance. The ideal candidate will ...

Android Engineer Kotlin/Java, Agile, WFH 2 3d/mo

New Route Recruitment Limited is searching for talented iOS and Android engineers to join their exciting tech start-up. The company specializes in developing a leading dating app with frequent feature updates and a robust roadmap. You will be responsible for creating and maintaining exquisite Android a ...

Java Backend Engineer II: Real Time Scalable Event Platform

Tesco UK is seeking a Software Development Engineer II to join their Behavioural Data Platform team in Welwyn Garden City. You will design and develop event-driven backend services that enhance customer experiences through data processing. This role offers the opportunity to grow your backend engineeri ...

Lead Software Engineering Java/Python Risk Data Platform & Strategy

Job Description Join us and shape the future of risk technology with your expertise in data engineering and software development. You will have the opportunity to push boundaries, innovate, and make a meaningful impact on our business. We value diversity, inclusion, and respect, fostering a colla ...

Automation Tester (SDET) – Java, Selenium, Web Driver, Cucumber, XML,

Automation Tester (SDET) – Java, Selenium, Web Driver, Cucumber, XML Automation Tester (SDET) – Java, Selenium, Web Driver, Cucumber, XML, JSON At Difrent, we have an ambitious growth plan that will see us delivering cutting edge digital services to our Healthcare, Government and ...

Senior Software Engineer (Rust, C++, Java, Go or Python)

Overview Senior Software Engineer (Rust, C++, Java, Go or Python) Software Engineering Up to £150k base + meaningful equity London Senior Software Engineer - Rust, C++, Java or Python - London - Up To £150k base + meaningful equity Are you excited by solv ...

Senior Java Engineer (GCP) | Spring Boot | On site Essex

A leading tech recruitment agency is seeking a Senior Software Engineer based in Basildon, UK, to join a high-performing team. The role involves designing and maintaining scalable software, with a focus on Agile Java Development and modern practices like TDD and BDD. Candidates should be adept at working in pair ...

Full‑Stack Java Engineer — AWS, CI/CD & UK Travel

Accenture UK is seeking a Software Engineer based in Glasgow. The role involves building digital products and collaborating with clients while maintaining high engineering standards. Candidates should possess several years of Java-focused full-stack experience and familiarity with AWS. This position of ...

Lead Software Engineer Java/Python Risk Data Platform & Strategy

Job Description Join us and shape the future of risk technology with your expertise in data engineering and software development. You will have the opportunity to push boundaries, innovate, and make a meaningful impact on our business. We value diversity, inclusion, and respect, fostering a collab ...

Lead Software Engineer: Java, AI & AWS for Agentic AI

Job Search Place Limited is looking for a Lead Software Engineer to design and deliver market-leading technology products in Glasgow. In this role, you will develop advanced AI and data engineering solutions while working in a collaborative agile environment. The ideal candidate will have deep expertis ...

Contract Front End Software Tester (JavaScript|Java|Playwright|TypeScript)

Contract Front-End Software Tester (JavaScript | Java | Playwright | TypeScript) Start Date: ASAP, immediate starterDay Rate: £(Apply online only) per day, Outside IR35Length: 3 months initalWorking Patterns: Fully-remoteOther Information: 2 stage interview processOpus have partne ...

Senior Java Engineer: REST APIs, DB & On Site Newbury

Red Top Resources in Newbury is seeking an experienced Senior Software Engineer to deliver high-quality software solutions. The role involves developing web applications, RESTful APIs, and maintaining existing systems, while mentoring junior developers. Candidates should have at least 5 years of Java d ...

Senior Lead Software Engineer Java/Scala, Spark, 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 FIX Onboarding Specialist Java / Python Lead Software Engineer

As a Senior FIX Onboarding Specialist at JPMorganChase within the CIB - Equities LOB, you are an integral part of the team that is responsible for managing and facilitating the onboarding process for clients using the Financial Information Exchange (FIX) protocol. This role typically involves working close ...

Hands on Software Team Lead — Python/Go/Java Microservices

Golang Works in Manchester is seeking a Software Development Team Leader to oversee a dynamic team and drive software delivery. You will lead, mentor staff, and retain technical expertise while focusing on backend technologies. The ideal candidate has strong experience with cloud-based architectures an ...

Lead Software Engineer Python/Java on AWS Markets Tech

JPMorgan Chase is seeking a Lead Software Engineer to join their Markets Technology team in Glasgow. You will be responsible for delivering innovative software solutions, developing high-quality production code, and leading evaluation sessions with internal and external teams. The ideal candidate will ...

Lead Software Engineer (Java, AWS) Contract Role Inside IR35

Role Purpose We are looking for a Lead Software Engineer for an initial 6 Month Contract (Inside IR35) - this role will be onsite 2 days a week in our Speke HQ working in our FS squads. The Lead Engineer is a key role within a Software or Data Engineering sub-community providing technical leaders ...

Java Software Engineer Team Lead in Bristol NatWest Group

Java Software Engineer Team Lead Bristol, United Kingdom Posted 9 months ago Tech stack Software Engineer Java Java Software Engineer Team Lead This is an opportunity for a technically minded individual to join us as a Java Software Engine ...

Java Backend Engineer — AI FinTech, Equity + 25 Days PTO

A fast-growing startup in the UK is seeking a Software Engineer (Java Backend) to join their talented engineering team. You will design and build high-performance systems that power an innovative wealth management platform. The role requires 6+ years of backend experience, strong Java skills, and familiarity wit ...

Full Stack Java/Angular Engineer (Azure, Microservices) – 12M Contract

Computer Futures / SThree Group is looking for a Full Stack Engineer for a 12-month contract role based in London with hybrid working potential. The successful candidate will build applications using Java (Spring Boot) and Angular (17+) while collaborating with various teams. Key qualifications include ...

Java Software Engineer — Lead in Agile, Spring Boot & Testing

A leading consulting firm is seeking a Software Engineer (Java) to join their team in Birmingham. The role involves delivering high-quality code, participating in agile practices, and contributing to digital transformation projects. Strong hands-on experience with Java and frameworks like Spring Boot is essentia ...

Senior Java Software Engineer Quote API (London or WGC)

About the role Join the team behind Price Service—a mission‑critical HTTP API powering pricing and promotions across all of Tesco’s channels. From tills to websites and everything in between, our work touches the lives of over 28 million UK shoppers every week, with global reach on the horizon. W ...

DevOps Engineer CI/CD Leader (Java/Node) on Azure

A leading specialist (re)insurer is looking for a talented DevOps Engineer with a development background to join their innovative technology team in London. This hands-on role involves implementing best practices in CI/CD processes, driving automation and ensuring smooth software delivery. The ideal candidate wi ...

Senior Software Engineer (Rust, C++, Java, Go or Python)

Senior Software Engineer (Rust, C++, Java, Go or Python) Software Engineering Up to £150k base + meaningful equity London Senior Software Engineer – Rust, C++, Java or Python – London – Up To £150k base + meaningful equity Are you excited by solving technic ...

Software Engineer Java or Go Belfast in Belfast Ocho

Overview Software Engineer - Java or Go - Belfast Location: Belfast, United Kingdom Posted 24 days ago Salary: £80,000 per year Requirements We are looking for a backend engineer with at least 1 year of experience in Java or Go. You should have ex ...

Lead Java Engineer Real Time Payments & Kafka on Azure

Cognizant is seeking a Lead Java Engineer in Greater London to support a major Payments modernisation programme. This role involves designing and building a new event-driven platform, working closely with stakeholders on real-time FX flows. The ideal candidate will have proven experience in microservic ...

FX Risk Java Tech Lead: High Performance, Global Impact

Citi is looking for an experienced FX Risk Java Tech Lead to drive technical excellence in high-performance risk calculation systems. In this role, you will guide engineers, set technical direction, and manage critical systems. Candidates should have extensive experience with Java, leadership skills, and a ba ...

Senior Java Software Engineer (Pricing API) – 5 days – London

Senior Software Engineer Day rate: £400 - £500 (inside IR35) – 6 month contract – London office, 5 days per week – Start: Now What You'll Be Doing Design and build scalable backend systems using Java and the JVM ecosystem Develop clean, maintainable code from product ...

Senior Java AI Enablement Engineer: Modernize CI/CD & Microservices

A leading financial services provider based in the UK is seeking an experienced engineer to modernise services using AI. In this hands-on role, you will demonstrate how AI can enhance productivity and code quality. You will have responsibilities ranging from refactoring to testing and debugging, while also provi ...

Senior Java Software Engineer II — AI Driven Cloud Solutions

A leading information and analytics company in the UK is seeking a Senior Java Software Engineer II to enhance its cloud-hosted systems supporting scientific research. You will work in a dynamic Agile team, focusing on design, development, and deployment of innovative solutions using Java, Spring, and other mode ...

Lead Java Backend Engineer: AI & Event Driven FX Systems

Citi is seeking an experienced software engineer to design, develop, and maintain high-performance Java services. This role will involve applying modern backend design principles, including Domain-Driven Design, while collaborating with cross-functional teams to address complex business needs. Successf ...

Senior Java Engineer Product Tech (SaaS, Remote 2d/wk)

Burns Sheehan is seeking a Senior Java Engineer to join a leading B2B SaaS technology business in London. You will be instrumental in designing and building scalable products that deliver business value. The role invites a proactive engineer with a strong Java background, especially in Spring Boot and cloud-base ...

ERP Platform Engineer — Own a Custom Linux/Java System

Apply Recruitment is looking for an individual to take full ownership of their custom ERP system developed in Java, running on Linux (Debian), with a PHP frontend. The role offers a competitive salary up to £60K and the flexibility of a hybrid working arrangement. The candidate will be key in managing the system ...

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