42,443+ Java React Developer Jobs in UK — Top Companies Hiring July 2026

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Senior Python Developer R&D

London, Greater London | £65k - £80k per year Senior Python Developer / Engineer (Python Rust Cloud) London / WFH to £80k Do you enjoy problem solving and working on complex systems at the cutting edge of technology? You could be progressing your career as a Senior Python ...

Algorithm Developer, Weapon Systems (Hybrid)

MBDA S.A.S. is seeking an Algorithm Developer in Bristol to work on transformative weapon systems technology. The role focuses on designing and developing sophisticated algorithms using tools like Matlab and Python. Candidates should possess a strong academic background in mathematics or related fields and id ...

Software Developer C++ Pro Audio

Overview Join the inMusic team as a Software Developer specializing in C++ for Pro Audio. In this role, you will collaborate with a diverse global team of engineers, testers, and sound designers to contribute to virtual instruments, music creation software, and performance tools. You will develop ...

Game Developer Unreal (Contract) PRELOADED

Contract: (Hybrid) Overview We're seeking a seasoned Game developer with an excellent track record in Unreal and an instinctive understanding of what makes a great game experience. You will be part of the gameplay prototyping team and work closely with game design and creative to create ...

Multilingual Inbound Business Developer – Travel

Ukinbound is seeking a Business Development Professional to manage relationships in their Italian and South Mediterranean markets. The ideal candidate will be fluent in German, Spanish, Italian, or French, alongside English, with a background in inbound tourism. Responsibilities include qualifying new ...

Autonomous Territory Field Sales Developer

Howdens in St. Austell is seeking Field Based Business Developers critical for business growth. You'll establish strong relationships with both existing and potential account holders to secure new business through various methods, aiming to exceed targets. This role allows for significant autonomy, whe ...

Senior Full stack Web Developer

Your roleThis is an exciting opportunity to make a significant contribution by delivering data portals for several world leading projects tackling global sustainability and biodiversity challenges including: Ancient Environmental Genomic Initiative for Sustainability Functional Anno ...

Software Developer, Risk and Regulatory

As a Software Developer, you will be working in a small team of talented developers following agile practices, to develop high quality scalable solutions. Full-time Closes 15/07/2026 The Risk and Regulatory team’s goal is to form a function around an ever-growing road map. This will be ...

Lead Python Developer (Outside IR35)

Role Details Title: Lead Python Developer (Outside IR35) Working hours: 35 hours per week, Monday to Friday Duration: 3 month initial Outside IR35 contract Location: Gloucester About the Role This contract is to design and ...

Senior Python Developer R&D

Salary: GBP65000 - GBP80000 per annum + bonus + benefits Senior Python Developer / Engineer (Python Rust Cloud) London / WFH to £80k Do you enjoy problem solving and working on complex systems at the cutting edge of technology? You could be progressing your career as a Senio ...

Developer Documentation Specialist (API/SDK)

Optimizely is looking for a Technical Writer II to create content for developers and end users in a fast-paced Agile environment. You will collaborate with Product and Engineering teams to ensure documentation is accurate and meets user needs. This role requires experience in documenting complex techni ...

Director of Developer Communities & Events

TechTree, located in Greater London, is looking for a Community & Events Manager to enhance our ecosystem of engineering communities. You'll be responsible for fostering relationships with various communities to create engaging opportunities for developers. Your role will involve outreach, community st ...

Senior Technical Manager Excellent Developer

Senior Technical Manager - Excellent Developer Our client is one of London and the South East's best known and most respected high end developers! They have a fantastic portfolio of residential schemes from the northern Homes Counties, to the banks of the Thames to the South Coast. Due to t ...

Quant Trading Ops Developer — London

A leading technology firm in London is looking for a Quant Trading Operations Analyst Developer. The ideal candidate will have experience in computer science, a maths or computer science degree from a top UK university, and coding ability in languages like Ruby, Go, Scala, and Python. This role offers the opport ...

Senior .NET Developer (£80k + benefits)

Great opportunity for a Senior .NET Developer to work remotely for a SaaS start-up in Manchester that recently secured Series B funding. Youd join a small engineering department and would work within a cross functional product-based team responsible for building cloud-native, serverless systems in ...

Web Developer at 2am Preston

Due to continued growth and new client work, we are looking for a talented Web Developer to join our team in Preston. You will be responsible for developing and maintaining web applications and CMS systems for our clients. You should be passionate about modern server-side technologies and frameworks. < ...

Cyber Security Instructor & Curriculum Developer

An educational training company in the United Kingdom is seeking a Technical Cyber Trainer. In this role, you will be responsible for delivering essential Cyber Security accreditations to learners, demonstrating expertise and continually developing your skills. Candidates must have a proven track record in Cyber ...

Unity Developer: Coding, Multiplayer & Tooling

Sonicom is looking for a Unity Development Technician to join their Digital Media Lab, working on exciting interactive educational experiences. Your role focuses on coding and multiplayer systems, contributing to innovative projects and optimizing development workflows. With a diverse and creative team ...

UAS Technical Instructor & Training Developer

Tekever Corporation is seeking a UAS Technical Instructor in Blaenannerch, Wales. The role involves delivering hands-on and classroom training to ensure proficiency in UAS systems, maintenance, and operations. Responsibilities include curriculum development and ensuring compliance with aviation regulations. < ...

Data Warehouse Developer SQL Server

Data Warehouse Developer | London Market Insurance | Contract - 6 months - up to £550 per day | London - City A pan-European insurer is looking for a Data Warehouse Developer to join their growing team and roll out their Financial Data warehouse to the UK and Europe. This would initially be a 6 m ...

Technical Design Manager Residential Developer

Architectural Technician/Design Manager London, UK * Full-Time, PermanentBTR / Residential Development * Client-Side * RIBA Stages 3-5 The Opportunity Our client is a London-based real estate developer and investor with an active pipeline of residential-led schemes, inclu ...

Men's Apparel Product Developer (Hybrid)

BARBOUR is seeking a Product Developer to join their Men's team at the Head Office in South Shields. In this role, you will collaborate with Design and Technical teams to develop Men’s clothing ranges, ensuring premium quality and adherence to timelines and budget. The position requires flexibility wit ...

Business Systems Developer in Ammanford

Business Systems Developer Ammanford 27972/611 50,000 Benefits Package A starting salary of up to 50,000, depending on experience Hybrid flexibility - option to work 1 day from home Company Pension Scheme </ ...

Senior Data Visualization & Insights Developer

A leading grocery technology enterprise in Hatfield is seeking a skilled Data Product Developer to design and maintain effective data solutions. You will focus on transforming complex data into actionable insights for suppliers and internal teams. The ideal candidate has strong experience in Data Visualisation D ...

Senior Python Developer Leading Fintech

My Leading FinTech trading client are looking for a Senior Python Developer to work on trading and risk management systems. You'll build Back End applications creating high-performance, resilient pipelines, to support risk calculations, trade workflows and reporting. Key responsibilities <ul ...

European Energy Markets Business Developer

C-Zero Markets is looking for a Business Development Executive to lead client acquisition across UK and European markets. You will engage with corporates and sustainability-focused organizations to drive new business opportunities in the environmental commodity sector. This role balances commercial amb ...

Power BI Developer Binley Woods

Salary: £42,000 - 70,000 per year Requirements Deep expertise in Microsoft Power BI, including Desktop, Service, gateways and workspace management, with strong DAX and data modelling skills. Solid experience working with large and complex data sets, writing optimis ...

Remote Salesforce Developer Content Integrity

We are seeking a Salesforce Developer with expertise in building robust and scalable solutions to join Trustpilot's Trust and Safety department within the Reporting and Optimisation team. This role will be pivotal in extending and integrating our Salesforce platform as we complete our migration from Zendes ...

Software Developer, Trading and Tools

Job Description As a Software Developer, you will collaborate with a team of exceptionally skilled professionals dedicated to the development, enhancement and support of our cutting‑edge Sports Trading Platform. Working within the trading and tools team, you will develop a diverse range o ...

Remote Salesforce Developer Content Integrity

We are seeking a Salesforce Developer with expertise in building robust and scalable solutions to join Trustpilot's Trust and Safety department within the Reporting and Optimisation team. This role will be pivotal in extending and integrating our Salesforce platform as we complete our migration from Zendes ...

Application Developer Microsoft Dynamics 365

Application Developer Microsoft Dynamics 365 Bristol - onsite initially, then hybrid 6 months Active SC clearance required Market rates inside IR35 - umbrella only Role description SharePoint upgrade/deployment ...

Senior Android Developer (London, UK)

About the Role We are looking for a highly skilled and passionate Senior Android Developer with a strong command over Kotlin and a solid grasp of agile methodologies, and modern engineering practices such as Test-Driven Development (TDD) and Extreme Programming (XP) </b ...

Dynamics 365 Solution Architect & Developer

Dynamics 365 Sales CRM Solution Architect / Tech Lead Location: London (Hybrid - 3 days onsite) Rate: £60-£86 per hour Contract: 6-12 Months (Extension Likely) Start: ASAP Clearance: Must be eligible for FADV clearance (5 yea ...

Salesforce Developer: Migration & Platform Architecture

Trustpilot is seeking a Salesforce Developer to join the Trust and Safety department. This pivotal role involves developing custom Salesforce solutions and supporting the migration from Zendesk. The ideal candidate will have a strong background in Salesforce development and a proactive approach to operational ...

Principal Engineer GPU Compiler Developer

Category Chip Design Location Cambourne Experience More than 8 Years Work Expe. Job Description MediaTek Incorporated is a global fabless semiconductor company that enables nearly 2 billion connected devices a year. It is a market leader in de ...

Network Developer with DV Clearance

Salary: £60,000 - 90,000 per year Requirements Extensive knowledge of networking technologies and secure solutions Proven experience in network device configuration and troubleshooting Strong understanding of WAN and LAN technologies, including MPLS, BGP, ...

Senior Software Developer (UK based)

We’re looking for a passionate and experienced Senior Software Developer to join one of our agile squads. In this role, you’ll be hands‑on in designing, building, and enhancing features across the PCI Pal product suite, while also setting the technical standard through mentorship, code reviews, and driving ...

Salesforce Developer: Migration & Platform Architecture

Trustpilot is looking for a Salesforce Developer to join the Trust and Safety department. This role is crucial for migrating from Zendesk to Salesforce, focusing on the development and integration of custom solutions. The ideal candidate will have robust experience in Salesforce development, particularly with ...

Application Developer Microsoft Dynamics 365

Salary: £? - ? per year Requirements Active SC clearance required Strong SharePoint admin skills Experience in application technical support and troubleshooting Experience with a wide range of web applications and Microsoft systems, including Ac ...

Senior Engineering Manager, Developer Experience

About the team The Developer Experience team owns the internal platform that every the company engineer touches daily: CI/CD pipelines, observability tooling, our developer portal, and an emerging AI platform. It's a high-visibility role: the work you lead directly shapes the productivity of hundr ...

Cloud Automation Developer – Sofia, BG

Xtravirt is a UK leader in private cloud consulting and managed services, specialising in VMware Cloud Foundation and VMware-based digital infrastructure. For over 18 years, Xtravirt has supported enterprises across multiple sectors with the design, delivery and ongoing optimisation of secure, scalable and ...

Quantum Developer Platform Growth Director

Quantinuum is seeking a Sr. Director, Offering Management to lead the strategy for its cloud-based quantum developer platform in London or Cambridge. This role requires 15+ years in product management for developer platforms, an advanced degree in a relevant field, and strong communication skills. The position o ...

Assistant Vice President Axiom Developer

Financial Management department is in charge of planning, organising, directing and controlling the financial activities of the Bank. The department performs a variety of financial functions, including accounting and financial reporting, fixed asset and expenses management, budget and management reporting, ...

Senior C++ Developer Vice President

Senior C++ Developer Job Code: 12392 • Country: GB • City: London • Skill Category: IT/Technology Corporate Title: Vice President Department: Latency Sensitive Electronic Trading (LSET) Location: London (Hybrid) Role Overview We are looking for a C/C++ de ...

Quant Developer FRTB and Scala

Senior Quant Developer - FRTB (Scala)PermanentLondon - HybridWe are supporting a major financial markets programme and are looking for experienced Quant Developers to help deliver and enhance a strategic FRTB Internal Models Approach (IMA) solution.This is an opportunity to work on a high-profile ...

Salesforce Developer TOP INVESTMENT MANAGER!

Salesforce Developer -TIME TO JOIN AN ELITE COMPANY!!! Central London (Hybrid Working) Do you want to work for a top investment manager with excellent benefits and a high bonus? This is a brand new Greenfield rollout! This is a great time for a Salesforce Developer to join a h ...

Senior Microsoft Dynamics Developer Hybrid

Celon is seeking a Senior Microsoft Dynamics Developerto join our growing team on a 12-month contract, with an immediate start and the potential to extend. This is a hands-on role for someone who can work independently, understand business needs, and translate them into practical, well-str ...

Web Experience Developer (Front End)

Web Experience Developer (Marketing Agency)Hybrid - 3 days office / 2 remote Salary: Up to £50,000 (DOE)We're a growing marketing agency creating high‑performing digital experiences for a wide range of brands. We're looking for an experienced Web Experience Developer (Front-End) who loves bui ...

Senior Software Developer Oxford hybrid

Senior Software Engineer; Hybrid; C#, C++, WPF, RTOS- Web applications/embeddedAre you an experienced Software Engineer ready to take ownership of complex, high-impact projects? We’re looking for a Senior Software Engineer to play a key role in designing, developing, and maintaining innovative software s ...

.NET Developer – Remote, Azure & Microservices

Noir is seeking a talented .NET Developer to join their innovative team in Newcastle-under-Lyme. You will be involved in developing and maintaining various software applications using .NET technologies, including C#, ASP.NET, and WPF. The ideal candidate will have experience with web application development a ...

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