32,186+ Java React Developer Jobs in UK — Top Companies Hiring July 2026

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Python Developer (Mid) – AWS, CI/CD, UK Security

A growing software consultancy is seeking a Mid-Level Python Developer in Manchester. This role involves designing, developing, and testing software, primarily in Python, and engaging with AWS solutions while collaborating in an agile team. Ideal candidates will have over 4 years of experience with CI/CD methodo ...

Fully Remote Oracle Developer – CX/ERP & BI Specialist

A reputable recruitment agency is seeking an experienced Oracle Developer for a fully remote role. The ideal candidate will have at least 3 years of experience in Oracle application development, particularly in CX Sales, ERP, Finance, and HR. Responsibilities include designing and maintaining Oracle applications ...

DevEx Senior Consultant Developer Experience & CI/CD Lead

A leading technology consultancy in Greater London is seeking a DevEx consultant to improve developer workflows and productivity. You will lead initiatives, streamline processes, and implement automation tools while collaborating with various teams. The ideal candidate has a solid understanding of CI/CD pipeline ...

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, deployme ...

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 ...

TikTok Shop Collectibles Account Manager / Business Developer , London

Overview TikTok Shop - Collectibles Account Manager / Business Developer, London 3 weeks ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. Responsibilities Acquire and incubate collectibles brands, distributors, a ...

Remote .NET Developer – C#/Blazor, Azure, Full‑Stack

Join a forward-thinking company as a .NET Developer in Swansea, where your expertise in .NET and C# will contribute to innovative marketing solutions. With a culture that values autonomy, you'll work in small teams, deploying code multiple times a day. Enjoy the freedom to innovate and learn, all while benefitin ...

Full Stack JS Developer for Renewable Tech (Hybrid)

A renewable energy organization in Cambridge is looking for a talented Web Application Developer. This role offers a hybrid working model, allowing you to work in the office 3 to 4 days a week. The successful candidate will possess at least 2 years of commercial experience, a robust coding background in HTML & C ...

Hybrid .NET Cloud Developer (Junior–Mid) | AWS Growth

A technology solutions provider based in Leeds is seeking an Associate Consultant. In this hybrid role, you will work on enterprise-grade applications and cloud-native solutions using C#, .NET, and AWS. The position offers significant potential for professional growth, mentorship, and a comprehensive benefits pa ...

Junior Frontend Developer Fintech in London Quant Capital

Job Description This role will involve some backend but mostly frontend development of the GUI and data display for the Quant Team. Current stack is JavaScript with frameworks with raw HTML5 CSS3 and Python at the back end. This innovative start-up is pioneering a new concept for the financial mark ...

DV Cleared Network Developer: Secure WAN & MPLS Expert

Experis is seeking a DV Cleared Network Developer to work in Basingstoke. The role involves designing and developing network solutions, supporting a global WAN service, and configuring network devices. Applicants should have extensive knowledge of networking technologies, experience with MPLS and BGP, and the ab ...

Dynamics 365 CE Developer Public Sector, Power Platform

A leading consulting firm in Birmingham is seeking Dynamics 365 Customer Engagement Developers to deliver secure solutions in the public sector. You will design and configure Dynamics 365 CE solutions while delivering Power Platform capabilities to enhance user experience. Required skills include hands-on Dynami ...

Salesforce Developer Hybrid, AI Driven SaaS Product Team

Sage, located in Winnersh, is seeking a Salesforce Developer to join its product engineering team. In this role, you will design and maintain high-quality Salesforce solutions and work closely with various teams, including Angular engineers and testers. The ideal candidate has strong skills in Apex, SOQL, and Ja ...

Salesforce Developer: Apex, LWC & Flows for Global CRM

A global tech business is seeking an experienced Salesforce Developer to join their dynamic team in Newcastle upon Tyne. You will develop custom solutions on the Salesforce platform, focusing on Apex and Lightning Web Components. Responsibilities include building Salesforce Flows to automate processes and ensuri ...

Full Stack Developer: Build Secure, Scalable Cloud Apps

Provide CIC in Colchester is seeking a Full-Stack Software Developer to design and maintain secure, end-to-end solutions for critical business systems. You'll develop responsive web applications and robust back-end services, ensuring data is exchanged reliably while embedding security throughout the developme ...

C++ Developer Options Market Making Relocate to Chicago

Maven is a market-leading proprietary trading firm allocating internal capital across discretionary, systematic, and market-making strategies. Our collective expertise spans traders, engineers, and technologists, unified by an unwavering dedication to enhance our efficiency as a premier liquidity provider ...

Software Developer (C++) – Up to £120,000 + Bonus + Package

Role: Software Developer (C++) – Up to £120,000 + Bonus + Package Salary: Up to £120,000 + Bonus + Package Location: London (Hybrid Working) Skills: C++ as a main language This firm is an elite tech firm with exceptionally high standards </ ...

Junior Developer — Crypto, Rust & .NET, 24/7 Operations

A leading technology company in Greater London is seeking a Junior Developer to maintain and improve applications using Rust and .NET technologies. You will work in a collaborative, agile environment with a focus on production support and system enhancements. Ideal candidates have 1-3 years of experience, a univ ...

Senior BI Developer: SQL/Azure, Power BI — Hybrid

About Bodycote At Bodycote, we’re more than the world’s leading provider of heat treatment and specialist thermal processing services. We’re a people business at heart. Our commitment to innovation and sustainability shapes everything we do. With a global footprint and a culture built on collabor ...

Full Stack C#/.NET Web Developer | HTML & JS

Fullstack with C# Dot net HTML Web Software Developer (IT) Company: Nexus Jobs Limited Location: Basildon, United Kingdom Field Successful Web Developers should have sound knowledge and experience in different programming applications. Core skills include C#, Asp.net/Core, < ...

Mid Senior BI Developer Tableau/Looker Dashboards (London)

A leading financial institution in the UK seeks to hire a Business Intelligence Developer to enhance data visualization and analytics processes at Chase UK in London. This permanent role emphasizes strong experience with Tableau and Looker, alongside SQL and data modelling capabilities. The successful candidate ...

C# / .NET Developer – Front Office, FX & Orchestrade Systems

Overview Join MARGO in the UK (London) MARGO is a tech-native consultancy delivering high value-added IT expertise to the financial services industry. We specialise in complex software engineering environments where performance, robustness, and scalability are critical: ...

Senior KDB+ Developer for Global eTrading Analytics (Hybrid)

A global managed services provider is seeking a contractor to enhance its eTrading MI and Analytics platform. The role involves developing core components, working with quantitative teams, and implementing API-based features. Candidates should have strong q and kdb+ expertise, familiarity with TDD/BDD, and the a ...

ServiceNow Lead Developer – Hands On with Offshore Team

A UK technology firm is seeking a ServiceNow Development Lead to join their London-based delivery team. This hands-on role involves high-quality development and guiding an offshore team. The ideal candidate has proven experience as a ServiceNow Developer and is capable of maintaining delivery quality and pace. T ...

Hybrid Lead Developer: Scale, Innovate & Mentor (C#/.NET)

The MRJ Group is seeking a Lead Developer to spearhead the design and development of high-quality software applications. You will work with Agile delivery teams, focusing on innovation and speed within a growing global tech company. With strong experience in C# .NET and SQL, your role will include coll ...

.NET Developer: High Growth Tech, Remote & Training Budget

A leading internet company based in London is seeking a .NET Developer to work on the development of complex software applications. The ideal candidate will possess deep knowledge of .NET, .NET Core, C#, and Azure SQL, with an eagerness to learn new technologies. The position will allow for remote working, but a ...

Lead Software Engineering Python Front Office Quant Developer

Overview Join us and make a real impact in a high-energy front office role where your ideas shape the future of trading and investment strategies. You will collaborate with talented developers, quants, and traders, working on exciting projects that help clients implement their strategies. We value ...

MS Stack Software Developer: Azure Cloud & Data Tools

OverviewWe are looking for a highly motivated individual to help us build the next generation of data analysis tools and infrastructure for our Award-Winning Accident Repair Network. Our mission is to develop the tools and technology that enable our teams to get our customers back to norm ...

Mid Level .NET Developer Modernise Legacy & Scale Apps

A leading photography company in the UK is seeking a passionate Software Developer to join their team. The role involves designing and developing software solutions, contributing to system architecture, and mentoring junior developers. Candidates should have solid experience with C# and the .NET ecosystem, along ...

Dynamics 365 Developer: AD B2C & Azure API Integrations

A local authority in Hounslow is seeking an experienced Dynamics 365 Developer for a temporary three-month contract offering a daily rate of £400 (outside IR35). Candidates must have strong skills in Active Directory B2C integration, integrating solutions with Dynamics 365 through APIs, and familiarity with c#, ...

Remote Frontend Web Developer — Build FinTech UX & Impact

A dynamic FinTech SaaS company is seeking a mid-level Front End Web Developer to transform polished Figma designs into responsive web pages. You will collaborate with designers and product owners to deliver high-quality web experiences and work on both internal and external customer-facing sites. The ideal candi ...

Junior WordPress Front End Developer (Part Time, Hybrid)

Klatch is seeking a Part-Time Junior Front-End Developer in Hove to enhance client websites and develop new products. This role involves collaborating with project managers to create efficient web experiences primarily on WordPress. The ideal candidate has at least one year of front-end experience, is detail-ori ...

Senior C#/.NET Developer — Path to Tech Lead

Radius in Crewe is seeking a Senior C# Developer to enhance its telecoms division by developing modern software platforms using .NET technologies and microservices architecture. This role offers a progressive career path towards leadership, where you will influence system design, maintain high-quality ...

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 ...

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 ...

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 ...

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