32,169+ 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

Front Office Developer: SQL & .NET in Finance – London

Hunter Bond in Greater London is seeking a Front Office Developer to enhance internal applications and data systems. This role offers collaboration with senior stakeholders, focusing on the development of business-critical platforms. The ideal candidate will possess a strong background with SQL Server ...

Senior Unity Developer – Real World Interactive Gaming Remote

Aardvark Swift Recruitment Ltd is seeking a Senior Unity Developer to join a well‑funded venture in the social entertainment space. The successful candidate will contribute to a Unity‑based game engine that integrates with real‑world systems. Responsibilities include designing gameplay systems, collaborating wit ...

Senior KDB Developer FX Analytics & Tick Data Automation

TESTQ Technologies Limited is seeking a skilled developer to enhance the Global FX MI and Analytics platform in Greater London. The role with a strong emphasis on application security includes responsibilities such as developing key analytics features, collaborating with teams to implement solutions, and ensu ...

Senior C# Developer — Fully Remote (UK) & Scalable Systems

Oxbow Talent is seeking a Senior C# Developer to join an innovative engineering team. This fully remote role offers the opportunity to work on large-scale projects, contributing to technical direction and building modern applications. Applicants should have strong experience in C# and .NET, familiarity ...

D365 Developer + Power Platform Expert (6 Month Contract)

ARM is seeking a contract Microsoft Dynamics Developer based in Farnborough. The role involves working with D365, designing customisations, and collaborating with teams to implement solutions. Ideal candidates should be certified in Dynamics 365 and have experience with Power Platform. This position of ...

Remote .NET Developer — Fast Track Growth in Birmingham

A global video technology company is seeking a .NET Developer to work in Birmingham or remotely. You will be part of a rapid career progression programme with opportunities for promotions and pay rises within 12 months. Strong experience in .NET is required, along with the ability to work effectively in a remote ...

Software Developer – High Performance I/O & Storage Systems

Software Developer – High-Performance I/O & Storage Systems Viridien is an advanced technology, digital and Earth data company that pushes the boundaries of science for a more prosperous and sustainable future. The role focuses on developing high-performance backend services and APIs that integra ...

Software Developer – High Performance I/O & Storage Systems

) for more information.Viridien () is an advanced technology, digital and Earth data company that pushes the boundaries of science for a more prosperous and sustainable future. With our ingenuity, drive and deep curiosity we discover new insights, innovations, and solutions that efficiently and responsibly resol ...

Python Developer – APIs & LLM Data Infrastructure (Energy Markets)

Overview Modo Energy is building the data and AI infrastructure behind the energy transition — ingesting global energy datasets and powering APIs, analytics platforms, and LLM-driven systems that understand real-world power markets. Our data platform processes huge volumes of energy marke ...

Remote .NET Developer — ASP.NET Core, Azure & CI/CD

A prominent tech recruitment agency is seeking a .NET Developer to join a global video technology company in Birmingham. This role involves developing cutting-edge web applications using .NET, .NET Core, and Azure SQL, while offering a rapid career progression. The ideal candidate should be experienced in modern ...

.Net C# Azure Developer in London DGH Recruitment

.Net C# Azure Developer London, UnitedKingdom Posted 9 months ago Tech stack TypeScript SQL Git Artificial Intelligence CSS Azure JavaScript HTML5 UI/UX design C web Docke ...

Senior Software Developer Trading Systems (C#, .NET, SQL)

A leading IT recruitment agency is seeking a Senior Software Developer specializing in trading systems. The successful candidate will work on greenfield projects within a collaborative environment, producing high-quality code using C#, .NET, SQL Server, and more. A BSc in Computer Science or Mathematics from a p ...

Full Stack .NET Developer | Blazor, Azure & CI/CD

A well-established UK-based SaaS company is seeking a Full Stack .NET Developer to join their growing team. In this role, you will collaborate with others to develop and maintain cloud-based software platforms. Necessary qualifications include at least 3 years of experience with .NET, strong skills in C#, HTML, ...

PHP Developer — Build Scalable Web Apps (Laravel/Symfony)

A tech company in Leeds is seeking a PHP Developer to build and maintain web applications. You will work through the full software development lifecycle, collaborating with team members to create optimal solutions. The ideal candidate has proven experience in PHP frameworks, strong problem-solving skills, and kn ...

Senior .NET Developer — C#, Web & WPF, Remote UK

Ein globales Technologieunternehmen sucht einen talentierten .NET Developer, um ihr preisgekröntes Team zu verstärken. Mit einem beeindruckenden jährlichen R&D-Budget von £2 Milliarden fördert das Unternehmen Innovation und bietet eine entspannte Arbeitsumgebung mit flexiblen Arbeitszeiten und Home-Office-Möglic ...

Web Developer, SEO, Digital Marketing Management, or Webmaster

Are you interested in starting your career in the exciting and dynamic world of digital marketing and web development? Look no further than Zems Entertainment! We are currently seeking a driven and ambitious intern to join our team and assist with website and SEO maintenance. About the Internship < ...

Senior Software Engineer, AI Developer Tools and Platforms

Our team crafts developer-first tooling that ensures developers get the best out of Arm technology on day one. We strive to support our outstanding developer ecosystem by provisioning it with timely world-class solutions that enable debugging, profiling and seamless deployment of workloads targeting Arm-ba ...

AEM Developer in Glasgow Axiom Software Solutions Limited

AEM Developer Glasgow, United Kingdom Posted about 1 year ago Technical Stack Web Google Analytics Analytics JavaScript HTML5 CSS J2EE Frontend Job Requirements Minimum of 3+ year ...

Full Stack Developer (PHP + Vue.js) in Bangor Eyekiller

Skills 3+ years’ professional experience with PHP 8.x, Composer, PSR-12, and SOLID principles. Experience with front-end JS frameworks (ideally Vue.js 3 + Composition API). Familiarity with build tooling such as Vite. Linux server experien ...

In‑App Experience UX/UI Developer — Data‑Driven

N-able Technologies Ltd. is looking for a UX/UI Designer based in Edinburgh to enhance in-app experiences and drive user engagement through analytics and iterative design. The role requires 3–5 years of relevant experience in UX/UI design, knowledge in HTML, CSS, and JavaScript. The ideal candidate mus ...

.NET Developer Remote/London | WPF, SQL Server, Azure

A leading tech recruitment agency is seeking a .NET Developer at all levels to join a dynamic team in London. You will work on a revolutionary product with the potential to impact millions. Key skills include .NET, C#, WPF, and SQL Server. The role offers training in modern technologies such as Azure SQL and emp ...

Senior BI Developer: Power BI & Data Modelling Lead

Greene King in Bury St Edmunds is looking for a Senior BI Developer to lead the development and maintenance of interactive Power BI dashboards. The role involves optimizing existing solutions, managing data quality, and collaborating with business partners. Candidates should have expert skills in Power BI, stron ...

Electrical Manager (Luxury Residential Developer) | Central London | Permanent

Electrical Manager (Luxury Residential Developer) | Central London | Permanent Salary: £50,000 - £55,000 + package Location: London A luxury residential developer has a great opportunity for an Electrical Manager to join them on a permanent basis, based out of their Centra ...

Quantitative Developer (Low Latency) EMEA (F/M/D)

Quantitative Developer (Low Latency) EMEA (F/M/D) Direct message the job poster from Flowdesk. Flowdesk's mission is to build a global financial institution for digital assets, one designed from the ground up for market integrity and efficiency. To achieve this in a rapidly evolving marke ...

Technical Product Analyst / Technical Product Manager – Developer Tools

Technical Product Manager – Developer Tools / need manual testing and web exp. Location: Central London (Hybrid – 2 days WFH) Salary: Up to £140,000 Benefits: Private healthcare, gym membership, hardware budget, and more A rare opportunity to join one of the most techn ...

Senior Market Risk Developer – Historical Timeseries (Vice President)

Senior Market Risk Developer – Historical Timeseries Position / Group DescriptionThe Risk Technology group builds and supports a global risk platform enabling the Risk Management group to oversee all areas of risk across the Firm. The risk platform provides cap ...

Creative Web Developer (Junior/Mid Level), Unusual Technologies

We are Unusual Technologies. We are a team of creatives and programmers who bring immersive, high-tech, and bespoke solutions to industries ranging from academia and entertainment to the arts. If you are looking to break into creative software—or if you are already there and crave a change—we want ...

Full Stack CMS Developer (Sitefinity/Umbraco/C# .NET)

TSD is a leading technical integration and engineering company that specializes in bespoke applications, e-commerce, and systems integration. We work on a variety of projects, ranging from real-time bidding systems and high-traffic e-commerce websites to big-data analytics and high-speed transactional midd ...

Full Stack Junior–Mid Developer for Logistics Platform

ASENDIA UK LIMITED is seeking a motivated Junior to Mid-Level Developer to join its IT team in Greater London. The role involves developing and maintaining applications within an eCommerce logistics environment, supporting operational tasks like handling support tickets and addressing technical debt. T ...

GenAI Lead Developer Drive AI Solutions & Ops Innovation

Aviva in Norwich is looking for an AI Developer to join the GenAI team, delivering innovative solutions for Claims Operations. You will lead projects that shape the future of AI solutions, working in a dynamic and supportive environment. The ideal candidate is proficient in Python and has strong experi ...

.NET Developer – Build a Global Social Platform (Remote)

Join a forward-thinking global brand as a .NET Developer and contribute to the development of innovative features for a leading social networking site. This role offers the chance to work with the latest technologies, including .NET 9, Azure, and Microservices, while benefiting from structured career progression ...

Senior SAP ABAP Developer Lead SAP Apps (Hybrid)

A leading financial institution in the UK is seeking a seasoned SAP ABAP Developer to join their team in Swindon. You will design and develop SAP applications while providing technical leadership and mentoring your team. This role offers a hybrid working model, where you will spend at least two days per week in ...

Digital Learning Resource Developer (Part time, Fixed term)

Area Health Sciences APM Location University Park Salary £35,608 to £47,389 per annum pro‑rata depending on skills and experience. Reference MED We are seeking a skilled and creative Digital Learning Resource Developer to join the Health E‑le ...

Microsoft D365 Developer Dublin/London/Amsterdam/Frankfurt/Stockholm

Overview Microsoft D365 Developer - Dublin/London/Amsterdam/Frankfurt/Stockholm Contract type: Full-time fixed term (12 months). Hybrid role open to candidates based in Dublin, London, Amsterdam, Frankfurt, or Stockholm. Responsibilities Develop, configure, and customis ...

Senior Python Quant Developer for HFT & Crypto Trading

A leading trading firm in the City Of London is seeking an experienced Python Quant Developer to join their high-frequency trading team. This role focuses on expanding the Python analytics stack to support trading strategies in crypto markets. You will work closely with traders and quant researchers, developing ...

Software Online Developer in Shotton New Ventures Recruitment

Technical Skills and Experience In terms of technical skills and experience, you should have a strong proficiency in core front-end languages and tools, specifically TypeScript, JavaScript, SCSS, and HTML. Hands-on experience with JavaScript frameworks, particularly React.js and Node.js, is cruci ...

Senior BI Developer Power BI & Data Strategy (Hybrid)

hackajob is seeking a Senior BI Developer to enhance their data capabilities in Manchester. This role involves defining data requirements, developing data products, and ensuring data integrity for strategic decisions. The ideal candidate has extensive experience in data engineering, SQL, and Power BI, alongsi ...

Python Counterparty Credit Risk Senior Developer, Vice President

The Analytical Calculation Engine (ACE) Development Team is a group within Citi Financial Risk Technology, responsible for developing and implementing the applications used for derivatives credit risk and exposure calculations Firm-wide.The team's primary focus is the development, testing, deployment, ...

Go (Golang) Software Engineer, Developer Tooling and Containers

Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers include the wor ...

B2B Business Developer / Sales Executive AEC Partnership Opportunity

About Us:At Uptalent.io, we specialize in connecting top remote talent from Latin America with US companies in engineering, architecture, and construction (AEC) sectors. We focus on finding the right professionals for our clients, enhancing their capabilities with qualified talent, and helping them ...

Tech Lead AI Platform & Developer Experience (DevEx)

Gravitee is a 2025 Gartner® Magic Quadrant™ Leader, on a mission to govern the world’s intelligence.We deliver the industry’s most advanced platform for Any API, Any Event, and Any AI Agent, trusted by global leaders ...

Remote .NET Developer C#, Azure SQL, Flexible Hours

Noir is looking for a talented .NET Developer to join their team in Reading. This role involves working on ambitious .NET / C# projects and offers full training on the latest technologies including .NET 10.0 and C# 14. The position allows for flexible working hours and includes a range of benefits like ...

Graduate Software Developer in Cambridge RedTech Recruitment Ltd

Overview This is a job posted by our partner Jooble. Below is a snippet of the job description. To read the full text, please click on the Apply Now link. Position: Principal Software Engineer, Nifty Gateway Qualifications Admission Requirements: Grade of AA ...

Senior Mobile App Developer iOS/Android & UX Focus

Sign Language Interactions Ltd in Glasgow is seeking a skilled Mobile App Developer to join their technology team. This role entails designing, developing, and maintaining mobile applications that ensure accessible communication solutions. You will work closely with cross-functional teams to create user-centr ...

C# Developer – Sign‑Side Apps (4‑Day Week)

A leading out-of-home media company in Bolton is seeking a mid-level C# developer to enhance sign-side application services. The ideal candidate will have proven experience with C# and .NET APIs, along with strong debugging skills and familiarity with Agile/Scrum methodologies. This role involves writing efficie ...

Android Developer — Kotlin & Jetpack Compose, Hybrid/On site

Gravitas Group is seeking a Mobile Developer in Greater London to design, build, and maintain sophisticated Android applications. This role emphasizes collaboration with cross-functional teams and delivering high-performance solutions that align with government objectives. Applicants should have strong ...

Lead Data Scientist (Model Developer) / Deep Learning Practitioner

Responsibilities Lead the development of next generation deep learning approaches to advance our current underwriting models, to ensure that our core lending capabilities remain at the forefront of the industry. Unlock the value in non-traditional datasets by building sophisticated neural ...

Lead Data Scientist (Model Developer) / Deep Learning Practitioner

Responsibilities Build sophisticated neural networks (e.g. LSTMs, RNNs, or Transformers) to work with non‑traditional datasets. Find novel ways to transform raw, multi‑modal inputs into powerful predictive features. Collaborate with business stakeholders to prioritize initiatives and bridge the g ...

Lead Data Scientist (Model Developer) / Deep Learning Practitioner

Responsibilities Lead the development of next generation deep learning approaches to advance our current underwriting models, to ensure that our core lending capabilities remain at the forefront of the industry. Unlock the value in non-traditional datasets by building sophisticated neural ...

Cloud BI Developer | Self Serve Dashboards & Data Quality

Aviva Plc is seeking a Business Intelligence Developer in Norwich to enhance BI platforms and ensure valuable data insights are easily accessible. Expect a competitive salary starting at £35,000, with an 8% bonus opportunity based on performance. The ideal candidate will be involved in designing self-s ...

🚀 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