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

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Senior User Experience Designer

Remote-first (UK) | Preference for candidates able to attend Manchester office occasionally We’re partnering with a growing cybersecurity technology company that is building advanced analytics and digital trust platforms used by global enterprise customers across the UK and US. They’re look ...

Software Engineer

Bloxd - SoftwareEngineer We’re a profitable video game start-up in London with 11 million monthly players and we’re hiring engineers for our 8-person founding team. About us Creating games with editable worlds usually takes 20k+ lines of well-optimised code and years of developm ...

Software Engineer (up to £150k)

The role This isn't another AI startup building a chatbot. This is a company acquiring profitable, mission‑critical B2B SaaS businesses, then deploying a proprietary AI operating system across them. The goal: encode operational knowledge, automate workflows, and compound intelligence across a gro ...

Development Team Lead (C#)

Description At System C, we build technology that connects and transforms health and care outcomes. Our software supports public services across the UK, helping organisations deliver better care to communities that need it most. What You Will Be Doing Leading a development squ ...

Senior Full Stack Engineer Start up

Senior Full Stack Engineer / Developer (Python Django Flutter AWS) London to £120kAre you a full stack technologist who enjoys working on Greenfield apps?You could be progressing your career at a tech scale-up that are enjoying great success with their AI workforce optimisation software t ...

Core UI / Web Platform Engineer

Salary: up to £200k baseSummaryLeading HFT fund looking for an experienced Front End Developer to join their core UI platform team.This is a high impact role where your primary focus is building and extending the core UI platform, using it to develop business-cri ...

Core UI / Web Platform Engineer

Salary: up to £200k baseSummaryLeading HFT fund looking for an experienced Front End Developer to join their core UI platform team.This is a high impact role where your primary focus is building and extending the core UI platform, using it to develop business-cri ...

Senior Full Stack Engineer Start up

Senior Full Stack Engineer / Developer (Python Django Flutter AWS) London to £120kAre you a full stack technologist who enjoys working on Greenfield apps?You could be progressing your career at a tech scale-up that are enjoying great success with their AI workforce optimisation software t ...

Software Engineer

Software Developer (Full Stack)Would you like to develop innovative digital applications to solve our greatest energy transition challenges?Are you a Full Stack Developer looking for an inspiring opportunity to grow?Join our Software Team within Pre-Commissioning & ...

Software Engineer

Software Developer (Full Stack)Would you like to develop innovative digital applications to solve our greatest energy transition challenges?Are you a Full Stack Developer looking for an inspiring opportunity to grow?Join our Software Team within Pre-Commissioning & ...

Growth Marketing Engineer II React (Web) | UK + EU (remote) Germany / remote

Growth Marketing Engineer II - React (Web) | UK + EU (remote) Office: United Kingdom Remote: Germany | Portugal | Spain | UK Apply for this role About the company About Cleo At Cleo, we're not just building another fintech app. We're embarking on a mission to fundamentally ch ...

Engineering Manager DevEx

How you'll help us achieve itYou’ll lead the Developer Experience team, which ensures that Wave’s engineers have the right tools and processes to ship value fast and in a reliable way. Developer Experience is extremely important to Wave for two reasons: We’re the most innovative f ...

Engineering Manager DevEx

How you'll help us achieve itYou’ll lead the Developer Experience team, which ensures that Wave’s engineers have the right tools and processes to ship value fast and in a reliable way. Developer Experience is extremely important to Wave for two reasons: We’re the most innovative f ...

Lead Python/Django Developer

Salary: £? - ? per year Requirements We must have recently worked on a project within Central Government. We must have worked in a lead role. We must have strong Python and Django experience. We must have proven system design capability end to e ...

Principal Architect and Developer

Salary: £95,000 - 115,000 per year Requirements We have expert-level custom and low-code development experience in Microsoft Dynamics 365 CE and Power Platform, including Dataverse, PCF Controls, Typescript and/or JavaScript, Azure Functions, Azure Logic Apps, Canvas Apps, a ...

Full Stack Software Developer

Build Innovative Solutions that make a long lasting impact! Are you a passionate Software Developer looking to make a meaningful impact? Join a forward-thinking tech team delivering cutting-edge solutions that support its users on a global scale. You’ll work within a collaborative Agile t ...

Full Stack GIS Developer

About us: Make a difference and advance your career by helping deliver some of the UK’s most important #tech4good projects, making the world a smarter, safer, greener, and healthier place. You’ll join a talented team of dynamic and driven professional problem solvers; creative ...

Senior Software Developer Reading

Salary: £60,000 - 70,000 per year Requirements We are looking for someone with strong knowledge of .NET development and modern coding practices. You should be skilled in C#, Python, .NET 8.0+, and Entity Framework. Experience with SQL Server, T‑SQL, and stored procedures is ...

Software Developer Security Cleared

We are currently recruiting for an experienced Software Developer to work a 12-month contract for our client initially two days per week on-site in Exeter (dropping to one day per week after induction). Consumer Digital enables the public to access data through various channels such as the website a ...

Software Developer Prime Services

Role Summary As a Full‑stack Software Engineer specializing in both front‑end and back‑end development, experienced in React or C# .NET, you will be a key member of our Prime Services Software Development team. You will contribute to the creation and enhancement of secure, responsive web applicat ...

Full Stack Developer (PHP)

Salary: £32,000 - 32,000 per year Requirements Strong full stack development background PHP experience, ideally Laravel JavaScript experience and exposure to modern frameworks such as React Node.js experience, with Express.js beneficial <l ...

Kotlin Developer (SC Cleared)

Kotlin Developer (SC Cleared) Outside IR35 We are seeking experienced Kotlin Developers to join a high-profile national digital programme, building secure, scalable, and user-focused Android applications that support a major government digital transformation initiative. ...

SC Cleared C# Developer

Salary: £? - ? per year Requirements We are seeking an experienced C# developer with current SC Clearance. We require familiarity with data modelling concepts. We require proven experience with tools that support development and version control, such as G ...

Protocol Analyst / Software Developer

Salary: £32,000 - 72,000 per year Requirements We require active transferable UK*C DV clearance and willingness to undergo BPSS prior to starting. We are looking for experience in protocol analysis and software development within secure or operational environments. ...

Blockchain Developer DeFi Specialist

About the job Blockchain Developer - DeFi Specialist Job brief Our leading Web3 client is seeking a talented Blockchain Developer with a specialization in decentralized finance (DeFi) to join their team. In this role, you will play a crucial part in designing, developing, and integrating blo ...

Adobe Experience Cloud Developer

VML MAP in Greater London seeks an Adobe Developer to design and implement solutions using Adobe Experience Cloud platforms. Responsibilities include leading technical implementation and mentoring junior developers. Candidates should have over 4 years of experience in digital marketing solutions and proven exper ...

Senior Market Data Developer

2 days ago Be among the first 25 applicants About BMLL BMLL is the leading independent provider of harmonised Level 3, 2 and 1 historical data and analytics across global equities, ETFs, futures and US equity options. We provide market participants with immediate access to granular T+1 or ...

Senior Software Developer (Go)

Join the Future of Technology with ZILO™ At ZILO™, we're redefining what's possible in technology. ZILO™ is the UK-based FinTech specialising in global asset and wealth management software, designed to scale and transform businesses of all types using our own developed AI Technology. Our mi ...

Senior Earnix Developer (SME)

Job Role Data Management and Analytics-Data development/developers Experience (In Years) 9-12 Job Location London, United Kingdom Job Description EXL (NASDAQ: EXLS) is a global data and artificial intelligence (AI) company that offers services and solu ...

Angular Developer with Python

Net2Source Inc. is one of the fastest growing diversities certified global workforce solutions companies with an unprecedented YoY growth of over 100% for last 6 years working with Fortune 1000/Global 2000 across 34 countries and 5 continents including North America, South America, Europe, Asia, Australia, ...

Front End Developer Principal

About Us Solirius Consulting delivers technical consultancy and application delivery to our clients in order to solve real world problems and allow our clients to respond to an ever-changing technical landscape. We partner closely with our clients, embedding our consultants into their businesses ...

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