48,375+ Java React Developer Jobs in UK — Top Companies Hiring July 2026

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Sr. Software Engineer Yield Management Team

Sr. Software Engineer - Yield Management Team Position: Full‑time What You Will Do We are a results‑focused team that writes high‑quality, high‑impact code for products used by millions of users. You will work with top‑level engineers to deliver world‑class features on time. </p ...

Contract Full Stack Developer (AI/ML)

Contract Full Stack Developer (AI/LLM Focus)Day Rate: £ - £/day (Flexible Depending on Experience)Initial Term: 6 months (Possibility of Extension)Location: Windsor, UK (Hybrid)Opportunity OverviewWe're seeking a full stack developer with s ...

Software Engineer

Software Developer Industrial Data & IIoTBelow, you will find a complete breakdown of everything required of potential candidates, as well as how to apply Good luck.Location: Sheffield, South Yorkshire (1 day per week on site)Salary: Up to £50,000 per annumJob Type: Permanent, Full-TimeRecrui ...

Contract Full Stack Developer (AI/ML)

Contract Full Stack Developer (AI/LLM Focus)Day Rate: £ - £/day (Flexible Depending on Experience)Initial Term: 6 months (Possibility of Extension)Location: Windsor, UK (Hybrid)Opportunity OverviewWe're seeking a full stack developer with s ...

Full Stack Web Developer

Job Overview Full Stack Web Developer – Telford (Office Based). Permanent. Salary £30,000 – £40,000 per annum, depending on experience. Monday to Friday. This is an exciting opportunity to join a growing, forward‑thinking organisation. The role supports the ongoing development of internal and cust ...

Full stack Java Developer for Systematic & Credit Portfolio Trading Tools, Assistant Vice President

Citi is seeking a highly motivated and curious full-stack engineer work embedded within the Systematic & Credit Portfolio Trading business and build out a first-class ecosystem of trading tools. This role offers a unique opportunity for in-person collaboration with traders, quants, and product development ...

Full stack Java Developer for Systematic & Credit Portfolio Trading Tools, Assistant Vice President

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we ...

Java Developer (Full Stack) (Mandarin Speaking, £35k, Capital Markets, London or Hong Kong)

We have an exciting opportunity for a Java Developer (Full-Stack) role in a London-based Capital Markets company. This market‑leading provider delivers best‑in‑class implementation algorithmic trading, smart order processing, and transactional cost analysis services to a wide range of clients, including gl ...

Full stack Java Developer for Systematic & Credit Portfolio Trading Tools, Assistant Vice President

Citi is seeking a highly motivated and curious full-stack engineer work embedded within the Systematic & Credit Portfolio Trading business and build out a first-class ecosystem of trading tools. This role offers a unique opportunity for in-person collaboration with traders, quants, and product development ...

Full stack Java Developer for Systematic & Credit Portfolio Trading Tools, Assistant Vice President

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we ...

Python Developer

Get AI-powered advice on this job and more exclusive features. Sign in to access AI-powered advices Continue with Google Continue with Google Continue with Google Continue with Google Continue with Google Continue with Google Continue with Google Continue with Google < ...

Full Stack Developer — Bioinformatics Platforms

European Bioinformatics Institute (EMBL-EBI) is looking for an experienced Full Stack Software Developer to join its BioSamples team in the UK. The role involves developing scalable systems for biological metadata management, creating user-facing web applications, and collaborating with diverse teams on scientif ...

Senior Java Software Engineer (Pricing API) 5 days London

Senior Software Engineer - (Java, Pricing API) – 5 days – Retail – London Day rate: £400 - £500 (inside IR35) Duration: 6 months On site: 5 days per week Start: Now My client is looking for a Senior Java Developer with 8 - 15 years e ...

Guidewire Claim Center Developer

 JOB DETAILSRole Title: Guidewire CC Lead DeveloperPossibility of remote work: Hybrid | 3 days in the office/ weekContract duration: 6 MonthsLocation: LondonRequired Core Skills:• Strong working experience Guidewire ClaimCenter• Java and Gosu• Insurance P& ...

Android Developer EdTech in London onebillion

Android Developer - EdTech London, United Kingdom Posted 10 months ago onebillion is a non‑profit software publisher dedicated to providing reading, writing, and numeracy education to marginalized children worldwide. Through their award‑winning app 'onecourse,' they offer personal ...

Guidewire Claim Center Developer

 JOB DETAILSRole Title: Guidewire CC Lead DeveloperPossibility of remote work: Hybrid | 3 days in the office/ weekContract duration: 6 MonthsLocation: LondonRequired Core Skills:• Strong working experience Guidewire ClaimCenter• Java and Gosu• Insurance P& ...

Senior Developer, Investment Tech & Data Platforms

Pharos Resource Partners is seeking an experienced Senior Developer to join a high-performing technology team within a global investment management environment. The successful candidate will have strong buy-side financial services experience and a passion for building scalable, secure, and high-perform ...

Realtime UI Engineer (Hybrid) – React & Golang

bet365 in Manchester is seeking a Software Developer to scale a UI for a real-time event-based system. You will contribute to building a React UI that processes real-time data, empowering the business to create new bonus mechanics effortlessly. This full-time position allows for hybrid work and offers ...

Real Time UI Engineer (React) – Hybrid

Limelight Health is seeking a skilled Software Developer to enhance and scale a UI for their real-time event-based systems. You will utilize best practices in React, working with technologies like Golang and SQL to empower business capabilities and drive innovation. This role promises an engaging envir ...

Mid Level Full Stack Web Developer Website & CRO

Moneycorp Bank Limited is seeking a Mid-Level Full Stack Web Developer to enhance their website and digital systems. You will engage in front-end and back-end tasks, optimizing user experiences and implementing technical SEO strategies. Ideal candidates will have solid experience with React and knowled ...

Senior Frontend Lead — React/Next.js Expert

Sonata One is seeking a skilled Senior Frontend Developer to lead frontend development initiatives. The ideal candidate has extensive experience with React and Next.js, contributing to innovative web applications. You'll mentor a team and collaborate closely with designers and backend developers, ensuring hig ...

Senior Full Stack Engineer Build Internal Apps (React/TS)

Fynity is seeking a Senior Full Stack Developer based in Greater London for a 12-month fixed-term contract with potential for permanent placement. In this role, you will develop modern React-based internal applications alongside .NET backend services, aiming to replace legacy systems with scalable, API-first ...

Senior Frontend Engineer for AI Driven Interfaces

The ONE Group Ltd is seeking a Mid–Senior Front-End Developer to join their team in Cambridge. You'll be responsible for designing and building modern web applications using React or Angular, taking projects from prototypes to full deployment. With over 5 years of experience in front-end development and a solid ...

Full Stack Engineer: Build AI Driven FinTech Platforms

A financial intelligence startup in London is seeking a versatile full-stack developer to join their growing team. You will work on a mix of backend services in Python and user-facing applications using React and TypeScript. The role involves cloud-native deployments on AWS while collaborating with product manag ...

Node.js Full Stack Engineer (React & AWS)

An innovative firm is seeking a skilled Node Developer to enhance their web applications. In this role, you will work on backend development and contribute to the overall performance and scalability of the applications. You will leverage your expertise in Node.js, Express, and React to build high-quality, mainta ...

Senior Full Stack Engineer: Python, Node & AWS

Ashdown Group is looking for a Full Stack Developer in Northampton with strong skills in Python, Node.JS, and AWS. The role involves developing and supporting full stack web applications within a hybrid work model, allowing for flexibility between office and remote work. The ideal candidate should also ...

Senior Web Architect: Lead & Mentor in London

Alchemy Digital, based in Borough Market, London, is seeking an experienced Senior Web Developer to join their team. The role involves shaping the development practice across the company and mentoring junior developers while delivering digital solutions for a diverse client portfolio. The ideal candida ...

Frontend Engineer: Design System & Shared UI Hybrid

A leading Fintech company in Cardiff is seeking an experienced Frontend Engineer to spearhead the evolution of their component library and UI standards. You will play a crucial role in enhancing the developer experience and collaborating closely with product teams in a hybrid work environment. The ideal candidat ...

Senior Web Tools Engineer (React/.NET)

Rockstar Games is looking for a passionate Web Developer to join their team in Edinburgh, Scotland. This full-time, permanent position offers the opportunity to work on large-scale creative projects and collaborate with talented professionals. The ideal candidate should possess strong experience in React and ...

Full Stack Web Developer: Build & Own Features

Sivara GmbH, based in Telford, is looking for a Full Stack Web Developer to join their team. This office-based permanent position offers a salary ranging from £30,000 to £40,000 per annum, depending on experience. Responsibilities include developing full-stack applications using JavaScript, Node.js, and React ...

PHP Backend Engineer (Midweight) – Build APIs & Microservices

MADD RECRUITMENT LTD is seeking a Mid Weight PHP Backend Developer to join their expanding team in Braintree. The role requires at least 2 years of PHP experience and involves developing backend functionality and integrating APIs. You will help create microservices and participate in code reviews to improve o ...

Front End Engineer (React/JS) – Flexible & Impactful

IBM in Greater London is looking for a Front-End Application Developer to design and develop modern user interfaces for web and mobile applications. Your role will involve using modern JavaScript frameworks to translate UI/UX designs into responsive and accessible experiences. At IBM, you'll be support ...

Senior Front End Architect — Web Native Transition

A scientific and engineering software provider in Guildford is seeking a Senior Front-End Developer to guide their transition towards a modern web-native experience. This involves strategic problem solving and hands-on coding, with a focus on using technologies like React and Electron. The role offers strong rem ...

Senior Developer & Tech Lead — Mentorship & Clean Code

UK Home Office in Salford is seeking a Senior Developer critical for product delivery. You will develop core components and help select appropriate technologies, ensuring technical standards are met while writing clean, secure code. This role involves mentoring engineers, supporting recruitment, and ma ...

Front Office C# & React Engineer for Capital Markets

jobr.pro is seeking a skilled C# Developer with REACT experience to join our delivery teams in London. This position involves designing, building, and enhancing front-office applications in a fast-paced trading environment. You will work closely with both business stakeholders and various support teams ...

Senior Full Stack Engineer (Node.js + React) Ownership

Tenth Revolution Group is seeking a talented Senior Software Developer to join their team in Newcastle Upon Tyne. The role involves developing scalable backend services and creating high-performance user interfaces using Node.js and React. You'll take ownership of projects from concept through to delivery whi ...

Senior Frontend Engineer — AI‑First, Full‑Stack, AWS

Rex Technologies GmbH is seeking a Senior Front End Developer to join its Clearing Technology team in London. The role requires expertise in React, TypeScript, and a full-stack capability to create secure web applications. You will drive an AI-first approach while ensuring compliance with FCA regulatio ...

Hybrid Node.js & Full Stack Engineer

SwiftCruit is seeking an experienced Software Developer to contribute across the software development lifecycle in a hybrid work arrangement based in Ware. Candidates should be proficient in Node.js, Python, with knowledge in modern JavaScript frameworks like React or Angular, and RESTful APIs. In addi ...

Scala Big Data Developer (Spark) – UK

Information Tech Consultants is looking for an experienced Scala / Big Data Developer to join their team in the UK. This full-time position focuses on building and enhancing innovative data solutions within a fast-paced financial services sector. The ideal candidate will have 2-5 years of software deve ...

Oracle EBS & Cloud Applications Developer

Stantec in Scotland is seeking an Application Developer with strong experience in Oracle EBS to join their team. The role involves designing and developing software solutions to address gaps in core Oracle e-Business Suite capabilities while working with various tools such as PL/SQL, Java, and Oracle Integrat ...

Senior Backend Engineer for AI Powered, Scalable SaaS

A forward-thinking technology company in Greater London is seeking a Back-End Developer to work on AI-powered products. You will design and maintain scalable back-end systems while collaborating with data scientists and engineers. The ideal candidate has 3–5 years of experience in back-end development, strong kn ...

Senior Backend Engineer – AI Powered SaaS, Scalable

A fast-growing AI company in Greater London seeks a Back-End Developer to collaborate with the Product team and Data Scientists. You will play a key role in designing and maintaining systems for AI-powered products. The ideal candidate has 3-5 years of back-end development experience, proficiency in programming ...

Senior eFX Developer (VP) – Low Latency FX Trading Lead

EC1 Partners is seeking a Senior eFX Developer to join the London team. This role involves developing cutting-edge high-performance trading systems in Java and Rust and working closely with trading and quant teams. The ideal candidate will have over 10 years of software development experience in financ ...

Senior Real Time Trading Systems Developer

White Swan Data seeks a Senior Software Developer in London to join our dynamic engineering team. You'll design and develop low-latency data processing pipelines and maintain integrations with trading platforms. Ideal candidates will have proficiency in Python, Java, and Google Cloud Platform, along with expe ...

Senior Real Time Trading Systems Engineer

White Swan Data is seeking a Senior Software Developer to join our Engineering team in London. You'll design and optimize low-latency data processing systems that execute automated trading strategies. A dynamic environment fosters collaboration and innovation, where your contributions significantly impact our ...

Platform Lead Developer: Cloud‑Native Backend & APIs

VOIS is seeking a Platform Lead Developer to design, build, and maintain cloud-native services for Vodafone’s Digital & IT Platform. This role involves collaborating with cross-functional teams to deliver secure and scalable digital capabilities. Candidates should have over 7 years of software engineer ...

Backend Engineer: Real Time Data Orchestration (Java/Go)

Cirata is seeking a Software Engineer for its Symphony Engineering Team in Belfast. The successful candidate will have 2+ years of experience, focusing on backend services in Java and Go, working on enterprise-scale systems with a hybrid work model. The role emphasizes real-time data orchestration and ...

Senior Java Engineer — Agile Leader & Mentor

Heywood, a leader in pensions administration, is seeking an experienced Java developer to join their team in Altrincham. The successful candidate will drive innovative solutions and collaborate with cross-functional teams to shape impactful features and products. You'll be empowered to use modern engin ...

Java & C++ Software Engineer Hybrid (Oxfordshire)

Halliburton in Abingdon is seeking a skilled Software Developer to join their team. This hybrid position requires working on new products and features using Agile methodologies, collaborating with architects and developers. The ideal candidate should have over 4 years of Java and C++ experience, famili ...

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