28,161+ Java React Developer Jobs in UK — Top Companies Hiring July 2026

Professional job seekers finding United Kingdom jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

Security Driven DevOps Engineer for CI/CD and Kubernetes

DRW Holdings, LLC. in Greater London is seeking a DevOps Engineer to enhance our Security Engineering team. This hands-on role involves designing and operating secure, scalable infrastructure. Responsibilities include building CI/CD pipelines, implementing tooling for data pipelines, and supporting security tool ...

Lead Residential Site Manager – NE Suffolk

Atrium Associates is seeking an experienced Site Manager for a growing residential developer in East Anglia. The ideal candidate will manage a residential development in North East Suffolk, ensuring projects are delivered safely and to high standards. With a salary range of £50,000 to £70,000 depending ...

Senior C# Engineer – Remote, Shape Scalable Systems

Oxbow Talent is seeking a Senior C# Developer for a fully remote position based in the UK. This role requires expertise in C# and .NET, with a focus on building modern applications. Candidates should thrive in Agile environments and be eager to influence technical direction as the company works on large-scale ...

Remote Senior C# Engineer – Scale & Influence

Oxbow Talent is partnering with a global consultancy to hire a Senior C# Developer. This fully remote role involves working on scalable software across complex projects and contributing to technical decisions with engineering teams. Ideal candidates have strong C# and .NET experience, along with skills ...

Senior UX Researcher — Remote, Crypto & AI Insights

Tether Operations Limited is looking for a Senior UX Researcher to work remotely across its consumer and developer product portfolio. The role involves conducting UX research to gather insights that drive product decisions, ensuring an optimal user experience. The ideal candidate will have 5+ years of ...

Junior People Team Partner — London | Remote Options

A leading mobile games developer in London seeks a Junior People Team Business Partner to support people initiatives and enhance employee experience. This role offers a fantastic opportunity to work closely with leaders and teams in a creative, data-driven environment. The ideal candidate has prior HR experience ...

Graduate Software Engineer: Full Stack & Customer Focused

LexisNexis Risk Solutions in Cardiff is looking for a passionate developer to contribute to modern technology stack projects. You will work closely with senior engineers to build high-quality solutions and enhance customer value through collaboration. The role demands enthusiasm for web development, PH ...

Senior Embedded GUI Engineer C++/Qt on Hardware

A technology company in Colchester is seeking an experienced Applications Developer to join their team. This role involves delivering high-quality application features and user interfaces primarily using C++ and Qt. The position requires strong experience with embedded systems and collaboration with various engi ...

Senior C# Software Lead for Scientific Tools

A leading scientific technology company in High Wycombe is seeking a Senior Software Developer to join their team. The role involves developing high-performance software solutions in C# for applications in various scientific fields. The ideal candidate is experienced in people management and passionate about tea ...

Software Engineer High Performance I/O & Storage

A technology and data company in Crawley is seeking a Software Developer specializing in high-performance I/O and storage systems. The role involves designing and developing backend services and APIs for efficient data access across distributed environments. Ideal candidates have strong software development expe ...

Senior Platform Engineer: Elevate Dev Experience & Tooling

AJ Bell is seeking a Senior Platform Engineer to enhance internal platforms and shared engineering tools. This role will involve improving developer workflows and supporting teams in delivering high-quality software efficiently. The ideal candidate will have hands-on experience with TypeScript or Go an ...

Senior Backend Web Engineer for Game APIs & Tools

A leading game development company seeks an experienced Back-end Online Developer to build and support internal and external web APIs for their game engine team. This back-end role emphasizes JavaScript expertise, distributed API experience, and collaborating across teams to improve systems. The position allows ...

Platform Engineer: Scale Kubernetes & Cloud Infra

A technology organization is seeking a Platform Engineer in Colchester to design and maintain an internal developer platform and cloud infrastructure. This role focuses on enabling teams to ship software reliably and securely. Responsibilities include evolving CI/CD pipelines and implementing Infrastructure as C ...

Platform Security Engineer for DevEx Automation

A fast-growing online used car marketplace in Greater London is seeking a Developer Experience Security Engineer to enhance security in platform capabilities. You will design secure defaults, implement automated checks, and collaborate with engineering teams to instill best practices. The ideal candidate has exp ...

Lead .NET Engineer: Azure, DevOps & Microservices (Remote)

An international technology client is seeking a Lead Software Developer skilled in .Net Core and SQL Server. The ideal candidate must have over 5 years of solid software engineering experience and proficiency in CI/CD processes using Azure DevOps. This role offers a flexible working arrangement, initially remote ...

Senior Python Data Engineer Greenfield ETL in Finance London

A market-leading trading firm in London is seeking a Software/Data Developer to join their data-focused team. You will develop a greenfield data ingestion platform using OO Python and design ETL pipelines. The ideal candidate has over 4 years of experience in OO Python development and finance, with a proven trac ...

Senior Android Engineer Kotlin Multiplatform

A leading digital consultancy in the UK is seeking a skilled Android Developer to create high-quality mobile applications using Kotlin Multiplatform. This role involves writing clean, maintainable code and working closely with cross-functional teams. Ideal candidates have strong experience in Android development ...

AI Driven Business Process Engineer

Occupop in West Yorkshire is seeking a Business Process AI Developer to enhance business operations through AI solutions. The role involves analysing workflows, designing AI-powered tools, and automating processes for improved efficiency and consistency. Ideal candidates will have experience in AI solu ...

Oracle Cloud Data Migration Expert

IBM in Greater London is seeking an Application Developer specializing in Oracle eBS to contribute to the design and support of applications. You will work with top professionals on impactful projects and have the chance to enhance your skills within a flexible work environment. The ideal candidate wil ...

AI Agent Engineer (Arabic) – Build Production Grade Agents

hackajob in Greater London is seeking a skilled developer to design and deliver production-grade AI agents crucial to the company’s growth. This role involves driving the entire Agent Development Life Cycle and partnering with various enterprises to innovate AI solutions. The ideal candidate has extens ...

Software Engineer — Data Solutions & Mentorship

NUVIA is looking for a skilled software developer in Abingdon, UK, to support the development and maintenance of software solutions. The ideal candidate must possess strong analytical abilities and experience in both front-end and back-end development. The role involves mentoring junior members, managi ...

Platform Engineering Manager – SRE & Tools Leader

Marks and Spencer is seeking a Software Engineering Manager to lead the M&S Platform team. You will drive engineering excellence and manage a team focused on building reusable pipelines and tooling to enhance developer experience. The ideal candidate will have a background as a senior software engineer ...

Fintech Software Engineer (PHP/Go) – Scale & Modernize

Develop is seeking an experienced Software Developer to join its engineering team in Fareham. The role emphasizes developing new features in Golang while modernizing an existing PHP codebase. Strong PHP experience is essential; interest in learning Golang is a plus, as the company provides support for skill d ...

Senior Android Lead ML Powered Education App

Glite Tech, a startup in London, seeks a Senior Android Developer to lead the development of an Android version of their educational app. The role involves designing a high-scale architecture and working closely with cross-functional teams including ML engineers. Ideal candidates will have strong Kotli ...

Platform Engineer CI & Build Infrastructure

Humanoid is seeking a Software Engineer to lead the build system and CI infrastructure critical for robot development. This technical role involves maintaining CI pipelines, managing the remote build cache, and improving developer experiences. Ideal candidates will have strong experience with build sys ...

Senior Python Data Engineer Enterprise ETL Pipelines

iXceed Solutions in Canary Wharf, London is looking for a highly skilled Data Engineer (Python Enterprise Developer) with over 8 years of experience. The role involves designing, building, and maintaining enterprise-grade Python applications and scalable data pipelines. The ideal candidate will have st ...

Senior Guidewire ClaimCenter Lead — Cloud Migration (Hybrid)

Next Ventures is seeking a Lead Guidewire Claimcenter Developer for a 12-month contract with a London-based insurer. This hybrid role requires you to be present in the Central London office two days per week. The ideal candidate will have over 10 years of experience in Guidewire Claimcenter development ...

Real Estate & Energy Managing Associate

A distinguished law firm in Exeter seeks an experienced Managing Associate with expertise in the Energy sector. This role focuses on serving developer and landowner clients, supporting corporate teams with energy-related transactions, and contributing to the firm's growth. The ideal candidate will possess over 7 ...

Quality Management Lead ISO 9001 & QMS Champion

Wayve, a leading developer of Embodied AI technology, is seeking a Quality Management Lead to design and implement its Quality Management System and lead its journey towards ISO 9001 certification. This role involves working closely with various teams to build scalable quality processes and ensure comp ...

London Luxury New Homes Sales Negotiator

A leading residential developer based in Central London is looking for an experienced Sales Negotiator to join their team. The ideal candidate will have New Homes Sales experience and exceptional negotiation skills, working on a luxury development in London. This position offers a competitive salary of up to £28 ...

Senior Software Engineer — Lead Data Pipelines & Cloud

FinTop Consulting is looking for a senior Software Developer based in Greater London. This role requires over 5 years of software development experience and strong technical skills, particularly in Python and AWS. You will lead development teams, build data pipelines, and work with NoSQL databases. The ...

C# .NET Software Engineer – Cloud & Data Tools

United States Digital Space LLC is seeking an enthusiastic Software Developer to contribute to our Award-Winning Accident Repair Network's software solutions. This role focuses on enhancing the Evolve software, hosted in a cloud environment, ensuring efficient collaboration with partner organizations. ...

Founding Platform Engineer Cloud Native IDP for FinTech

Quantifi is looking for a Platform Engineer in London to join its team and build the Internal Developer Platform (IDP). This role involves designing and managing the platform, optimizing it for internal engineering teams as customers. The ideal candidate will have over 2 years of platform engineering e ...

Founding Backend Engineer – Go & AI Infra, Equity & Impact

Requesty is seeking an experienced backend developer to build a scalable LLM platform. You'll work directly with the founders, influencing the direction of the company and growing alongside it. The ideal candidate has over 5 years of experience in backend services, preferably in Go, and a strong unders ...

Defence Android Engineer (Kotlin) – Hybrid, SC Cleared

Frontier Resourcing Ltd is seeking an experienced Android Developer to join our growing technology team delivering innovations within the Defence sector. This role involves designing and developing secure, high-performance mobile applications in a collaborative Agile environment. Key responsibilities i ...

Assistant Quantity Surveyor

Assistant Quantity Surveyor - Residential Construction (London) Looking to step up to an Assistant level, a role with real responsibility?Want further exposure to new build and recladding projects across London?Ready to accelerate your career with a growing contractor? ...

Building Safety Remediation Manager Major Works Project 12 Month FTC

BUILDING SAFETY REMEDIATION MANAGER MAJOR WORKS PROJECTS (12 MONTH FTC) Rendall & Rittner £Competitive, aligned to experience Home Based 12 month FTC ROLE OVERVIEW This role focuses on coordinating and progressing remediation progra ...

Commercial Director

Commercial Director - Residential DevelopmentLocation - ShropshireSalary/Package - £80,000 - £90,000 per annum plus comprehensive executive package including car allowance, bonus, pension, healthcare, and additional benefits.About the CompanyOur client is a well-established and gr ...

Backend Software Engineer SC Clearance

Backend Software Engineer / Developer (Defence SC Clearance) *Newcastle onsite* to £120k+ Do you have technical expertise combined with SC Clearance? You could be joining a scaling Technology Consultancy as they break into Defence sector work, the company has already experience ...

Assistant Quantity Surveyor

Assistant Quantity Surveyor - Residential Construction (London) Looking to step up to an Assistant level, a role with real responsibility?Want further exposure to new build and recladding projects across London?Ready to accelerate your career with a growing contractor? ...

ASO Manager: Master App Store Growth & UA Impact

A mobile games developer is seeking an ASO Manager to lead the strategy for app store optimization across their game portfolio in Dundee. This key role will enhance app visibility and conversion rates by utilizing analytics and creative direction. Ideal candidates will have experience in ASO and A/B testing, alo ...

Senior .NET Backend Engineer – Hybrid, Growth & Perks

Trainline is looking for a dedicated Developer to join our team in Greater London. The role involves delivering high-quality software solutions, mentoring junior engineers, and overseeing the development lifecycle from coding to deployment. Candidates should have strong expertise in C# .NET and experience with C ...

Senior Market Data Engineer — C++/Python, Hybrid

A leading data analytics firm is seeking a Senior Developer to build and maintain data parsers for market data. The role requires experience in C++ and Python, with a background in financial market data. Responsibilities include owning development projects and delivering new solutions. The company offers competi ...

Senior Scala Backend Engineer Hybrid London | Benefits

Energy Jobline ZR is seeking a Scala Developer for a hybrid role based in London. You will join a small, technical team focusing on backend architecture, enhancing system reliability, and supporting essential processes. The ideal candidate will possess strong Scala development skills, knowledge of func ...

Senior Offshore HVDC Protection Engineer

Taylor Hopkinson is looking for a Protection Engineer to join a leading Offshore Wind Farm Developer in the United Kingdom. You will be responsible for commissioning, testing, and troubleshooting protection and control systems for high-voltage installations. The ideal candidate has extensive experience ...

Epicor Kinetic ERP Engineer – Transformation & Integrations

Aston Martin Formula 1 is seeking a talented ERP Developer - Epicor Kinetic to join our ERP transformation programme in Silverstone. This role focuses on delivering innovative and scalable solutions while collaborating closely with business stakeholders. The successful candidate will have proven experi ...

LabVIEW Software Engineer – Raman Spectroscopy (18mo, UK)

Sivara GmbH is seeking a LabVIEW Software Developer for a temporary 18-month contract based in Didcot, Oxfordshire. The role involves designing, developing, and debugging LabVIEW software for Raman Spectroscopy products, contributing to product development and improvement. The ideal candidate should ha ...

Senior .NET Architect & Development Lead

Core-Asset Consulting Ltd is seeking a Senior Developer in Newcastle upon Tyne. This role requires a technical specialist experienced in leading complex development strategies and delivering technology solutions. The ideal candidate will possess extensive C# .NET development experience and a strong focus on m ...

Quickbase Specialist Stabilisation & Optimisation (Remote)

Computer Futures is urgently seeking a Quickbase Developer / Consultant to stabilize and optimize a platform following a recent go-live. The role involves managing Quickbase environments, enhancing applications, and customizing reports, with technical guidance provided to clients. The contract is initi ...

AI Platform Engineer for DevEx & MLOps Pipelines

ClearRoute in Edinburgh is looking for a Platform Engineer to join client-facing delivery teams. You will design and operate modern developer platforms across various industries, with a focus on AI workloads. Your responsibilities include building infrastructure-as-code, managing CI/CD pipelines, and i ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

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