42,463+ Java React Developer Jobs in UK — Top Companies Hiring July 2026

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Remote C++ Quant Developer

About Wintermute Wintermute is one of the largest crypto-native algorithmic trading companies in digital assets. We provide liquidity algorithmically across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well as support high profile blockchain proje ...

Customer AI Developer Specialist

Overview Position: Customer AI Developer Specialist Career Level: Consultant (CL9) Location: London/Manchester We Are: Accenture Song accelerates growth and value for our clients through sustained customer relevance. Our capabilities span ideation to execution: growth, product and experienc ...

Front Office Python Developer

Front office IT strategist - Python Developer Overview In a team of seven IT strategists, dedicated to the ETFs market making desk. The role consists of supporting, maintaining and developing the trading environment used by the desk. In close relationship with traders, the IT strat ...

Remote.NET Developer, Graduate / Junior

.NET Developer, Graduate / Junior - Computer Gaming Company - London (Tech stack: Graduate / Junior .NET Developer, .NET 9, C#, Blazor, Azure, JavaScript, HTML5, CSS3, Agile, Programmer, Full Stack Engineer, Architect, Graduate / Junior .NET Developer) Having sold over 100 million games c ...

Salesforce Data 360 Developer

Overview Salesforce Data Cloud Developer to join our Salesforce Practice. This mid-level, client-facing role sits within our growing Data Cloud capability, working across enterprise engagements to design, build, and optimise Salesforce Data Cloud solutions that unlock the value of unified custome ...

Senior .Net Developer Contract

Senior .Net Developer - Contract Our client is at the forefront of delivering innovative, secure, and scalable solutions to millions of users worldwide. Be part of a passionate team that's transforming how businesses and consumers interact with payments every day. Rate & Benefits <l ...

Remote.NET Developer, Graduate / Junior

.NET Developer, Graduate / Junior - Computer Gaming Company - London (Tech stack: Graduate / Junior .NET Developer, .NET 9, C#, Blazor, Azure, JavaScript, HTML5, CSS3, Agile, Programmer, Full Stack Engineer, Architect, Graduate / Junior .NET Developer) Having sold over 100 million games c ...

Lead Software Developer C

Overview Lead Software Developer (C# .NET / Azure) Sheffield Our client based in Sheffield is seeking an experienced Lead Software Developer to join their growing engineering team. This is an excellent opportunity for a senior technologist who combines hands-on software development expertis ...

Web Developer / Frontend Engineer

About Moneybox Moneybox is an award-winning wealth management platform helping over one and a half million people build wealth throughout their lives. The mission is to give everyone the means to get more out of life - more freedom, opportunities, possibilities, and peace of mind. Job Brie ...

Senior Microsoft 365 Developer

Salary: £50,000 - 60,000 per year Requirements We have strong experience designing and developing solutions within Microsoft 365, including SharePoint, Power Apps, Power Automate, and Power BI. We can translate business requirements into scalable technical solution ...

Machine Learning Developer (Freelance)

Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project‑based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project‑based, not permanent employment. ...

Senior Front End Developer

Salary: £85,000 - 85,000 per year Requirements 6-10 years building production web applications Strong experience with TypeScript and modern frameworks such as React, Vue.js, or similar Solid front-end engineering fundamentals, including component-based ar ...

Senior Software Developer, FollowScores

As a Senior Software Developer, you will implement and maintain systems to support the features being delivered in our FollowScores app, while ensuring high quality standards for our software products. FollowScores is a football scores app and our goal is to continue growing it’s userbase over the ...

Remote.NET Developer, Graduate / Junior

.NET Developer, Graduate / Junior - Computer Gaming Company - London (Tech stack: Graduate / Junior .NET Developer, .NET 9, C#, Blazor, Azure, JavaScript, HTML5, CSS3, Agile, Programmer, Full Stack Engineer, Architect, Graduate / Junior .NET Developer) Having sold over 100 million games c ...

Remote C++ Quant Developer

About Wintermute Wintermute is one of the largest crypto-native algorithmic trading companies in digital assets. We provide liquidity algorithmically across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well as support high profile blockchain proje ...

Remote C++ Quant Developer

About Wintermute Wintermute is one of the largest crypto-native algorithmic trading companies in digital assets. We provide liquidity algorithmically across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well as support high profile blockchain proje ...

Remote C++ Quant Developer

About Wintermute Wintermute is one of the largest crypto-native algorithmic trading companies in digital assets. We provide liquidity algorithmically across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well as support high profile blockchain proje ...

Remote C++ Quant Developer

About Wintermute Wintermute is one of the largest crypto-native algorithmic trading companies in digital assets. We provide liquidity algorithmically across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well as support high profile blockchain proje ...

Remote C++ Quant Developer

About Wintermute Wintermute is one of the largest crypto-native algorithmic trading companies in digital assets. We provide liquidity algorithmically across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well as support high profile blockchain proje ...

Senior Finance Systems Developer

Senior Finance Systems Developer (Permanent) Location: Edinburgh Salary: £47,680 - £59,600 (competitive based on experience) Closing date: 14 May 2026 We are looking for a Senior Finance Systems Developer to join our Finance department on a permanent basis. This is a crucial ...

Senior Student Systems Developer

Senior Student Systems Developer Division of Registry and Academic Administration Grade/Salary : Grade 8: £44,746 - £56,535 (possible progression to £63,606) Hours : 35.75 hours per week (1 FTE) Contract basis : Open Ended Refe ...

Data Warehouse Developer III

Join a mission-critical healthcare data team where your technical expertise will directly impact patient outcomes. As a Data Warehouse Developer III, you'll help architect and support a dedicated data warehouse environment from the ground up, serving a major clinical transformation effort. This is a high-visi ...

Senior Financial Systems Developer

TM1 / IBM Planning Analytics Developer (Senior) – 12 Month FTC Location: Hybrid Client: Financial Services Salary: up to £80,000 This role is a 12-month fixed-term contract. The Role This role sits within a high impact finance systems team and will focus on ...

Software Developer (Backend SaaS)

Join to apply for the Software Developer (Backend SaaS) role at Canonical 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 s ...

Junior Front End Developer

Klatch is one of the fastest-growingmarketing agencies in the health & wellness sector, with an incredible 265% growth in 2024 alone. We create highly effective campaigns and websites for healthcare clients, working with organisations of all sizes—from individual clinics to cross-border organisations spanning ...

Senior Full Stack Developer

Who We AreKonrad is a next generation digital consultancy. We are dedicated to solving complex business problems for our global clients with creative and forward-thinking solutions. Our employees enjoy a culture built on innovation and a commitment to creating best-in-class digital produc ...

Lead Full Stack Developer

Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. We’ve been helping organisations build better digital products and stronger digital teams since 2014. We believe our work should always leave a legacy for t ...

Senior Front End Developer

Overview Principal Recruitment Consultant Building Dev teams across the UK - MRJ Recruitment Senior Front-End Engineer – Build the Future of a High-Scale Platform Salary: Open for discussion – let’s talk We’re partnering with one of Manchester’s most forward- ...

Quant Developer Equity Derivatives

Direct message the job poster from Nicoll Curtin Equity Derivatives Quant Developer - C++, Python, CI/CD, Equities, Equity Derivatives, Pricing, Sensitivity Calculations, Algorithms, Quant Finance, Risk Management. I am seeking an experienced C++/Python Quant Developer to join ...

Mid Senior Level Developer

Customer & Business Operations Manager at ScribePro, delivering medical records software for great sports teams About ScribePro ScribePro is on a mission to enable better care in sports medicine through our leading medical management product, ScribePro Team. Our software protects ...

Lead Power BI Developer

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading ...

SharePoint & Power Platform Developer

Mace combines construction expertise with consultancy to unlock potential in every person or project and redefine the boundaries of ambition. Our values shape the way we consult and define the people we want to join us on our journey. The role is for a developer specializing in the Microsoft Power ...

C++ UI Web Developer

Overview Job Title Kannon Franchise Pricing UI Developer Strat Location London Corporate Title Vice President Group Strategic Analytics is part of Group Chief Operation Office (COO) which acts as the bridge between the Bank’s businesses and infrastructu ...

Sustainable Construction Business Developer

James Gray Recruitment in Alloa is seeking a dynamic Business Development Manager to drive growth across multiple sectors including Industrial, Healthcare, and Education. You will build relationships with clients and stakeholders, manage a pipeline of opportunities, and promote sustainable construction soluti ...

Boomi Technical Consultant (Developer) – ...

Boomi Technical Consultant (Developer) - Contract - MUST beSC Cleared Role Title: Boomi Technical Consultant Contract Type: Contractor / Outside IR35 (if applicable) Location: UK-based / Hybrid or Remote Sector: Public Sector Dura ...

.NET Developer Bishop’s Stortford

Our client is the world’s largest social‑networking web site and they have ambitions to become the biggest web site in the world! Their global presence currently stretches across 25 countries and their planned expansion for the next 12 months will see another 10 countries added to this list as well as thei ...

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 ...

C# Developer – Games Technology

C# Software Developer, Mid & Senior level, C++ Software Engineer, 3D Graphics, CAD, Games, Maths, Physics, DotNet, C#, .Net, .Net Core, SQL Server, T-SQL, DDD, AWS, MVVM/MVC, OpenGL / DirectX – Global Software House – up to 70K Exciting global software house producing innovative cloud tech is continuin ...

Python Software Developer Labman.One

Position: Python Software Developer – Labman.One Location: Labman HQ, Stokesley, North Yorkshire Salary: £40,000 - £55,000 (depending on experience) Employment Type: Full-time, Permanent This role is fully office based in Stokesley, North York ...

Senior Front End Developer

We are seeking aSenior Front-End Software Engineer to play a key role in translating UI/UX designs into responsive, high-quality front-end interfaces using Blazor and related technologies. This role involves developing reusable components, ensuring cross-platform compatibility, and collaborat ...

Junior IT Collaboration Developer

As a Junior Collaboration Developer, you will help build, improve and support collaboration solutions across multiple platforms. You’ll work alongside Senior Developers to deliver small enhancements, fix issues, assist with reporting, and contribute to training and adoption so colleagues can get the most f ...

Senior Go Platform Developer

We are seeking a highly skilled and motivated Engineer to join our team and contribute to the development and management of Bloomreach Discovery's next-generation Engineering Platform. You will be instrumental in building and managing Garuda, our upcoming platform built with Terraform and Go, running on Ku ...

Senior Software Developer (27604)

Please note, candidates are required to secure Developed Vetting (DV) clearance for this role. This requires you to be a British citizen and have resided in the UK for at least 10 years. This company is seeking experienced software developers to join their multi-disciplinary team developing integrated ...

Microsoft Dynamics CRM Developer

Senior Microsoft Dynamics D365 CE Developer Our Client is seeking a Microsoft Dynamics CRM Developer with at least 5 years proven experience developing within the MS Dynamics CRM suite. Responsibilities: Lead ongoing development for the Global MS Dynamics CRM platform. ...

Ruby on Rails Developer

Role As an Integration Engineer, you will play a key part in building and maintaining the integrations that connect customer WMS systems to DexoryView, our data insights platform. Working closely with the engineering and integration support teams and communicating externally with Dexory’s custome ...

Enterprise Resources Planning Developer

Are you a seasoned ERP developer with a strong background in system integrations and design development skills. A trusted architect and infrastructure expert with an intrinsic knowledge of all things EPICOR (Kinetic) related. I have an exciting opportunity based in the Lincolnshire area for a leading b ...

Software Developer T&T

Working within the trading and tools team, you will develop a diverse range of applications, including desktop solutions, such as WPF & WinForms, backend services such as, .NET & Golang, and SQL Server stored procedures. Your contribution will be vital in delivering real-time data through our innov ...

Trading Developer x 2

We are seeking skilled Trading Developers to design and deliver high-performance trading tools and automated processes that enable profitable trading across multiple markets and commodities. You will play a key role in building robust, scalable, and secure solutions that support front-office trading activi ...

Mid Level JavaScript Developer

Front End / JavaScript Developer Salary: Up to £45,000, depending on experience Location: Fully Remote Industry: iGaming Provider Overview We are looking for a motivated Front‑End / JavaScript Developer to join a team and support the devel ...

Software Developer (Backend SaaS)

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

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