36,375+ Java React Developer Jobs in UK — Top Companies Hiring July 2026

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UI Developer Contract in London Quant Capital

The Role I am hiring to grow the UI team to develop new features for our exciting frontend product built in React, as well as maintaining existing features. UI Developers Must Have Deep knowledge of JavaScript or TypeScript, HTML and CSS Experience of backend syste ...

Salesforce Developer: Apex, LWC & Integrations (9 mo)

Steadmanbrown is searching for a Salesforce Developer to join their Fin-Tech client on a 9-month Fixed-Term Contract. The role involves developing custom solutions on the Salesforce platform using Apex and Lightning Web Components, while ensuring adherence to best practices in coding and integration. T ...

Senior .NET Developer – Remote, Modernize Legacy Apps

Version-1 is seeking a Senior .NET Developer located in Newcastle upon Tyne. You will enhance legacy Microsoft applications while working with technologies like ASP.NET Web Forms, MVC Core, SQL Server, and Azure DevOps. This role offers opportunities for development, troubleshooting, and participation in Agil ...

Front Office RAD Developer: Trader Tools Lead

A leading global financial services firm is seeking a Senior RAD Developer to work within a fast-paced trading environment. The role involves developing and maintaining trader tools, requiring robust skills in VBA and Python, alongside strong communication and requirement gathering abilities. Candidates must be ...

CCH Tagetik & ETL Developer – Finance Systems Expert

Capgemini is seeking an experienced CCH Tagetik + ETL Developer in London. This role will involve application development for CCH Tagetik databases while ensuring all governance requirements are met. You will collaborate closely with finance teams to enhance system functionality and deliver high-quality solut ...

Greenfield .NET Developer Remote UK + Bonus & Training

An innovative company is seeking a talented .NET Developer to join their dynamic team in Folkestone. This role involves developing cutting-edge Greenfield applications that will revolutionize the way local businesses operate. With a focus on utilizing the latest technologies such as .NET 9, Azure, and Angular 19 ...

Hybrid .NET/C# Software Developer (6 Month)

Bowerford Associates is seeking a Middleweight Software Developer for a 6-month fixed-term contract in Plymouth. This role may evolve into a permanent position. The candidate will work in a hybrid model, spending 2 days from home while handling enterprise-level software development. The position requir ...

Senior BI Developer — Healthcare Analytics & Data Strategy

Join Worcestershire Acute Hospitals NHS Trust as a Senior Business Intelligence Developer. You will play a key role in shaping healthcare analytics while leading the development and optimisation of SQL Server data warehouse solutions. This role requires strong technical expertise in SQL Server, T-SQL, ...

Senior Salesforce Developer: AI & Data Cloud Integrations

Capgemini is seeking an experienced Salesforce Developer in Milton Keynes to join our technology team. The candidate will develop scalable Salesforce solutions while engaging with stakeholders and technical teams. Essential skills include Salesforce Service Cloud, Marketing Cloud, and Apex development. <p ...

Full Stack Software Developer – Martech Content (Hybrid)

慨正橡扯 in Manchester is looking for a Software Developer to join the Martech Sports Content team. You will be responsible for marketing and affiliate systems, enhancing various content management platforms, and supporting internal business systems. The ideal candidate will have strong skills in C#, ASP.N ...

Trainee Programmer to Junior Developer Mentored Placement

Sivara GmbH in Greenwich is offering a Trainee Coding & Programming Placement Programme aimed at individuals eager to start a career in coding. This program includes comprehensive training in HTML, CSS, JavaScript, and Python, along with a structured mentorship to support your placement in the industry. < ...

Quantitative Developer (Python/C++) for Greenfield MFT

Client Server Ltd. is seeking a highly talented Quantitative Developer specializing in Python and C++ to join their London team. This impactful role involves designing and implementing trade execution algorithms for a Greenfield MFT platform in Equities trading. The successful candidate will be rewarde ...

Remote Lead Full Stack Developer — SC Cleared

Join a cutting-edge technology consultancy as a Lead Full Stack Developer, where you'll lead the development of innovative web applications using the latest technologies. This role offers an exciting opportunity to work with a dynamic team, manage cloud services on Azure, and design secure API endpoints. The com ...

Physics Content Developer for AI Enhanced Learning

A leading education technology company in London is seeking an Instructional Content Developer (Physics) to create engaging educational content for A-Level and GCSE courses. The ideal candidate will have strong physics knowledge, excellent communication skills, and a passion for education. This role offers a com ...

Sales and Marketing Manager (UK Residential, Developer)

Sales and Marketing Manager (UK Residential, Developer) Join to apply for the Sales and Marketing Manager (UK Residential, Developer) role at KOS International Limited Sales and Marketing Manager (UK Residential, Developer) 1 day ago Be among the fi ...

Electrical Manager – Luxury High‑Rise Developer, London

A luxury residential developer in Central London is seeking an experienced Electrical Manager to oversee high-rise residential projects. The candidate should have at least 4 years’ experience, a strong background with main contractors, and be familiar with electrical systems from installation to QA processes. Ce ...

Low Latency Quant Developer (HFT) – Remote/EMEA

A leading crypto trading firm is seeking a Quantitative Developer (Low Latency) to join their newly formed trading team. This full-time role involves developing trading algorithms and building systems for low-latency, high-frequency trading. Candidates should have strong programming skills, with a focus on Rust, ...

FO Rates/Credit Quantitative Developer Senior VP

Overview FO Rates/Credit Quantitative Developer - Senior VP role at BBVA . Location: London, England, United Kingdom. About the role Quantitative & Business Solutions (QBS) is a specialized unit within BBVA CIB – Global Markets, dedicated to providing investment ...

Front Office Quant Developer — Commodities & Python Tools

A leading hedge fund based in London is seeking a Quantitative Developer to bridge software engineering with trading. The role involves developing robust pricing and risk management tools while collaborating closely with Portfolio Managers. The ideal candidate will possess strong Python skills and experience in ...

Technical Product Manager Developer Tools (Hybrid, London)

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 ...

GoLang Developer — Cloud Platform (London, In Office)

A leading cloud development firm in London is seeking an experienced GoLang Developer to join their Enterprise Cloud Development Projects team. The role requires strong GoLang skills and the ability to deliver projects from inception to completion in a fast-paced environment. Ideal candidates will possess at lea ...

Power Platform & SharePoint Developer for Client Projects

Mace invites applications for a Developer role specializing in the Microsoft Power Platform technology stack. This client-facing position will support fee-earning projects, enabling better project delivery through development of digital tools and user interfaces. The ideal candidate will have at least ...

Graduate Power Platform Developer: Canvas Apps & Automate

A leading technology solutions provider is seeking a Graduate Software Developer to work primarily with the Power Platform in Manchester. The role involves developing applications and solutions for enterprise clients using a range of Microsoft technologies. Candidates should possess a Bachelor’s degree in a rela ...

Lead Developer Specialist Hybrid: C#/.NET & SQL

A leading recruitment firm in the UK is seeking a Lead Development Specialist based in Manchester. In this hybrid role, you will technically lead a team to bring core financial systems in-house, focusing on data integration and automation. The ideal candidate has strong experience in C#, SQL Server, and technica ...

Lead Developer Specialist (C#/.NET/SQL) Manchester

About the Role Lead Development Specialist - Hybrid Manchester Location : Manchester - 3 Days in the office Per Week Salary : £80,000 As part of a strategic shift from vendor dependency to in-house development, we are seeking a Lead Development Specialist to take technical own ...

Senior Web Developer & Tech Lead — Web Architecture

A digital marketing agency in London is seeking a senior web developer to lead the development of technology architecture for multiple websites. Candidates should have over 5 years of web development experience, especially in an agency setting. Responsibilities include migrating client websites, enhancing securi ...

VP, Technical Product Manager — Developer Tooling (Athena)

A leading global financial services firm is seeking a Technical Product Manager in London to lead the Athena Platform Developer Tooling team. This role requires collaboration with engineering teams and business units to prioritize and deliver digital solutions. Key responsibilities include managing the product b ...

Remote .NET Developer Greenfield Web/API Engineer

A leading internet solutions company based in the UK is seeking a .NET Developer to help develop innovative Greenfield software applications. The ideal candidate will possess strong knowledge of .NET, .NET Core, and C#. Opportunities for training in .NET 10.0, C# 14, and other advanced technologies are available ...

Remote .NET Developer for Innovative Reading Platform

An innovative e-book firm is seeking passionate .NET Developers to join their team in Leicester. This role offers the chance to work on impactful products that enhance the reading experience for users worldwide. You will engage with a talented group of professionals, gaining valuable insights and skills that can ...

Junior Salesforce Developer Hybrid, Fully Funded Certs

Waste Managed Ltd is looking for a Junior Salesforce Developer to join their team in Newcastle upon Tyne. The role involves managing the Salesforce support queue, diagnosing issues, and collaborating with senior team members. This position is ideal for someone eager to grow their skills within a supportive en ...

Lead Python Developer — Hybrid Cloud Delivery Leader

A leading digital consultancy is seeking an experienced Lead Python Developer to join their team in Leeds. The role involves technical leadership, coaching engineers, and delivering user-centred digital solutions. Candidates should have a strong background in software development practices, particularly in agile ...

Senior .NET Developer — Lead Azure Platform Modernisation

A healthcare technology firm in Newcastle upon Tyne is seeking a Dotnet Developer to take ownership of modernising their legacy C#/.NET applications. You will lead the redevelopment into a cloud-based solution, working closely with a small IT team. The ideal candidate has over 5 years of experience with C#, .NET ...

Full Stack .NET Developer (C#, Azure) Remote

An established industry player in the computer gaming sector is on the lookout for talented .NET Developers to join their dynamic team in Sunderland. This role offers the chance to work with cutting-edge technologies like .NET 9, Azure, and Angular 19, while enjoying a flexible working environment. You will have ...

Backend Python Developer for Enterprise Cloud Integrations

A professional services firm in Birmingham seeks a Backend Developer for a 12-month contract. The successful candidate will design and build cloud-based integration solutions, primarily using Azure Service Bus and Python. Key responsibilities include developing Function Apps and supporting data migrations. Ideal ...

Senior Python Developer AI SaaS, AWS Microservices

A tech disrupter in the UK is seeking an experienced contract Python Developer to enhance their SaaS platform. You will be responsible for building cloud-based microservices and working closely with a Machine Learning Engineer to develop scalable features. The role requires a proven background in relevant techno ...

Lead Cloud Developer Azure SaaS & Full Stack

Willis Towers Watson in Reigate seeks a Lead Cloud Developer to join its engineering organization focused on developing market-leading InsurTech solutions. The role involves working in agile squads to deliver core functionalities for various SaaS products. You will design new features, lead a scrum team, and ens ...

Remote React.js Developer — AI/ML Frontend Engineer

In the world of AI, behavioural predictions are leading the charge to better machine learning. There is so much happening in the AI space. Advances in the economic sectors have seen automated business practices rapidly increasing economic value. While the realm of the human sciences has used the power ...

C#/.NET Software Developer — Flexible Hybrid & Perks

A leading tech organization in Exeter is looking for a mid-level or senior Software Developer to join a collaborative team. In this role, you will design and deliver scalable applications using C# and .NET in an Agile environment. Key responsibilities include developing software features alongside stakeholders, ...

Senior Moodle Developer: Core LMS & Plugins Specialist

A prestigious university in London is seeking an experienced Moodle Developer to join their Core Teaching Platforms team. The ideal candidate will contribute to Moodle development, engaging with a multi-disciplinary team to ensure quality software delivery. Responsibilities include writing clean code, maintainin ...

Principal .NET Developer: Cloud Native Architect & Leader

A leading technology organization in Northern Ireland is seeking a Principal .NET Developer to drive the technical direction of key projects. This role involves architecting and delivering high-quality, cloud-based applications, mentoring developers, and maintaining high project standards. The ideal candidate wi ...

.NET Developer — Join a Global Fitness Movement

Join a global fitness movement as a .NET Developer and be part of a vibrant team that is transforming how people engage with fitness. This role offers a unique opportunity to work on innovative projects that connect communities and support local businesses worldwide. You will collaborate with talented individual ...

Python Quant Developer | High Frequency Trading Team

Python Quant Developer | High-Frequency Trading Team We are working with a leading traditional and digital asset trading firm whose mission is to build a global financial institution designed for market integrity and efficiency. They apply a disciplined, first-principles approach to everything th ...

Remote AI Student Developer (Python) – Gap Year

Feedinkoo is seeking a University Student Placement position, available for students in the United Kingdom. This fully remote role allows students during their gap year to apply academic knowledge in real-world settings, contributing to the organization’s objectives. The successful candidate will condu ...

Junior Buyer & Product Developer – Beauty & Home (Hybrid)

TRP RECRUITMENT is seeking a Junior Buyer/Product Developer to join a dynamic team in the beauty and homeware sector. This hybrid role demands a minimum of 3 days in the office, focusing on developing innovative products and supporting market trends. The ideal candidate will possess experience in buyin ...

Product Marketing Manager — Developer‑First GTM Leader

Ably is searching for a Product Marketing Manager who will play a key role in the go-to-market engine that powers growth. You will translate complex technical infrastructure into engaging narratives and tools for the Sales and Customer Success teams. The ideal candidate has significant experience in a ...

UX Developer Intern: Shape Intuitive Interfaces & Grow

A dynamic tech company in the UK is seeking a UX Developer Intern to create user-friendly digital experiences. This role involves collaborating with designers and developers to implement intuitive designs and conduct usability testing. Candidates should be pursuing a degree in Human-Computer Interaction or a rel ...

NPD Technologist (Temp) – Food Product Developer, 38h

A leading food and beverage recruiter in the UK is seeking an NPD Technologist to manage the New Product Development process from concept to launch. This temporary role offers a salary between £30,000 and £40,000 based on experience. Ideal candidates will have a degree in Food Science or Bakery Technology, with ...

Foundation Phase Coach (U8–11) — Pathway Developer

A professional football club is seeking a Foundation Development Phase Coach (Casual) to enhance player development for ages U8–U11. The successful candidate will work collaboratively to deliver a coaching program that aligns with the club’s philosophy and performance plan. Responsibilities include assessing pla ...

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