36,378+ Java React Developer Jobs in UK — Top Companies Hiring July 2026

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Senior Software Engineer Identity & Authentication

Project ContractorProject ContractorAbout the RoleIn the European Client Identity team, we are building and operating Vanguard's authenticationand MFA platform used by hundreds of thousands of clients across the UK and Europe.This is a hands-on senior full-stack role focused on designing ...

Senior Software Engineer Identity & Authentication

Project ContractorProject ContractorAbout the RoleIn the European Client Identity team, we are building and operating Vanguard's authenticationand MFA platform used by hundreds of thousands of clients across the UK and Europe.This is a hands-on senior full-stack role focused on designing ...

Technical Enablement Trainer

Flowable is a leading provider of intelligent process and case automation solutions, trusted by global enterprises to power mission‑critical business operations. With our next‑generation Agentic Case Platform, we orchestrate people, systems, and AI to deliver real business outcomes – faster, smarter ...

Software Engineer

Overview hackajob is collaborating with Made Tech to connect them with exceptional professionals for this role. Are you a Software Engineer that wants to actually see real-world impact from what you help to create? Our mission is simple! We believe we can use tech to make public services be ...

Senior Software Engineer

Senior Software Engineer Department: Delivery Employment Type: Contract Location: London Reporting To: Chris Nickson Description Sabio Group is a trusted expert in Contact Centre, AI and Data. We design, build and run autom ...

Senior Engineer (Full Stack)

Job Overview TP ICAP has partnered with Amazon Web Services (AWS) to build the next generation of the Fusion Platform and make it a global market infrastructure. This role will be working in a new team to build out a new platform based on the latest technology and architecture. You will be working ...

Software Engineer IV

Your job Staffing Solutions is the technology group within Indeed responsible for building the software that powers the Indeed Flex temporary staffing marketplace, managed-service provider service, payroll, and other staffing-related software. The Flexer Supply group within Staffing Solutions han ...

Manager, Senior Platform Software Engineer

About Baringa Baringa is a global consulting firm that partners with leaders to drive change and create value. With deep industry expertise and advanced technology, we help clients deliver with greater confidence and certainty. We operate across energy, financial services, government, consumer pr ...

Senior Software Engineer

Join to apply for the Senior Software Engineer role at Raytheon UK . Get AI-powered advice on this job and more exclusive features. Date Posted Country United KingdomLocation Gloucester, 18b Ley Court, Barnwood Industrial Estate, Barnwood, G ...

Fullstack Software Engineer Multiple Opportunites

Full Stack Software Engineer Location: Gloucestershire, Woking and Romsey Hybrid: Hybrid working across secure sites and collaborative engineering environments Salary: Competitive salary aligned to experience and clearance level Clearance: ...

Fullstack Software Engineer Multiple Opportunities

Full Stack Software Engineer Location: Gloucestershire, Woking and Romsey Hybrid: Hybrid working across secure sites and collaborative engineering environments Salary: Competitive salary aligned to experience and clearance level Clearance: A ...

Senior Frontend Engineer

Requirements 3-5+ years of software development experience in a fast-paced, innovative, and complex environment Experience using technical writing and diagrams for brainstorming, design alignment, and cross-team communication Proficiency in Next.js 13+ (including App Rou ...

Senior FPGA Design Engineer

Title: Senior FPGA Design EngineerDate: 15 May 2026Location: United Kingdom, Whiteley, Hampshire, GB About Us Domo Broadcast Solutions (DBS) is the leading manufacturer of best‑in‑class broadcast solutions that enable some of the most celebrated and demanding events and sporting ...

Platform Engineer

CAIS is seeking a Platform Engineer to join our high-performing team responsible for architecting, engineering, and maintaining the foundation of our cloud platform. The team designs and operates AWS infrastructure, manages CI/CD solutions, and builds observability systems that ensure reliability, scalabil ...

Software Engineers (DV Security Clearance)

Position Description: Elevate your potential with CGI, a global technology service provider and premier business consultancy recognized by Forbes Magazine as a top employer. Our mission is rooted in evolution, excelling in intricate challenges. Collaborating directly with our clients, we ...

Software Engineer

Hamiltonian Dynamics is a growing technology company working across Defence and Cyber Security, delivering software solutions that support critical national and enterprise systems. With teams based in Gloucestershire, Manchester, and London, we are entering an exciting new phase of expan ...

Senior Software Engineer

About this job Role: Senior Software Engineer Locations: Gloucestershire | Manchester | London (Hybrid / Remote Options Available)Salary: £40,000 - £75,000 + Comprehensive BenefitsType: Full-time, PermanentPLEASE NOTE: This role req ...

Software Engineer

Hamiltonian Dynamics is a growing technology company working across Defence and Cyber Security, delivering software solutions that support critical national and enterprise systems. With teams based in Gloucestershire, Manchester, and London, we are entering an exciting new phase of expan ...

Senior Software Engineer (JVM, Kotlin)

Senior Software Engineer (JVM, Kotlin)Simple MachinesHybrid · Full-time · London, UKAbout Simple MachinesSimple Machines is a leading independent boutique technology firm with a global footprint across London, Poland, Sydney and New Zealand. We operate at t ...

Software Engineers (DV Security Clearance)

Position Description: Elevate your potential with CGI, a global technology service provider and premier business consultancy recognized by Forbes Magazine as a top employer. Our mission is rooted in evolution, excelling in intricate challenges. Collaborating directly with our clients, we ...

Senior Software Engineer

About this job Role: Senior Software Engineer Locations: Gloucestershire | Manchester | London (Hybrid / Remote Options Available)Salary: £40,000 - £75,000 + Comprehensive BenefitsType: Full-time, PermanentPLEASE NOTE: This role req ...

AI/Agent Engineer

Location: London Office attendance: 4 days per week in-office (Paddington) About Vega Vega is an early-stage startup. There's no playbook, limited structure, and the expectations are high. Our goal is to build a generational company – we know this is not for everyo ...

Software Engineer

Are you a Software Engineer that wants to actually see real‑world impact from what you help to create? Our mission is simple! We believe we can use tech to make public services better. We also believe this can happen best when our own team represents the society that actually uses the services we work on. ...

Senior Software Engineer

We are looking for a Senior Software Engineer to join our Digital Finance Lab to develop and deliver innovative payment solutions and services for our customers and business. The Lab will focus on tasks that bring real value to the group by exploring opportunities in the Digital Assets and Payments Da ...

Senior Software Engineer (AVP) – Margin Technology

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we ...

Back End Software Engineer

Back End Software Engineer Department: Engineering Employment Type: Full Time Location: London, UK Compensation: £57,000 - £75,000 / year Description We are a team of about 50 engineers who collaborate closely and take prid ...

Senior Full stack Engineer (frontend heavy)

We power people’s progress. At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real imp ...

Software Engineer

Location: London, United Kingdom Hybrid Flexible Working Model Salary depending on role level & experience Paritas is working with a leading Client within Financial Services who are looking for multiple Software Engineers for a Java Microservices, Mobile Platform project. L ...

Sr Software Engineer

About the Role At Wellington Management our appetite for technology is insatiable. We recognize that the world is full of fascinating questions that will impact the future of companies, economies, financial markets, and entire industries. We want you to help us find answers to these quest ...

Sr Software Engineer

About the Role At Wellington Management our appetite for technology is insatiable. We recognize that the world is full of fascinating questions that will impact the future of companies, economies, financial markets, and entire industries. We want you to help us find answers to these quest ...

AI Backend Engineer, EMEA

About The Role We are looking for a Backend Engineer who builds with AI at the centre of their craft — not as a novelty, but as a primary tool that shapes how they design, write, review, and ship code. If you've already integrated Claude Code, agentic coding tools, and MCP servers deep ...

Senior Staff Software Engineer

Ready to shape the future of data?Matillion is the intelligent data integration platform.We're changing how the world works with data – and we need driven, curious people who think big and move fast. We built the to supercharge data productivity, and now we’re shaping the future of data engineering with – ...

Lead Guidewire PolicyCenter

Next Ventures partnered with a London‑based insurer is looking to hire a Lead Guidewire PolicyCenter Developer on a 12‑month contract in a hybrid format. Job Title Lead Guidewire PolicyCenter Developer Contract Details Duration: 12 months IR35 status: Ins ...

LEAD Developer (TALL Stack) High Growth SaaS in London Robert Half

Job Opportunity: Lead Developer at High-Growth SaaS Company Join a profitable, fast-growing SaaS company going through a major tech transformation. After 15+ years of success, they're rebuilding core platforms from the ground up – modernising features, and the chance to genuinely influence directio ...

Head of Global Developer Experience & Ecosystem Growth

P2P is seeking a Director of Developer Relations to lead a team focused on developers building applications on the XRP Ledger. The successful candidate will develop strategies for financial solutions, ensuring that the developer ecosystem grows through innovative frameworks and impactful collaborations. < ...

Client Relationship Coordinator

Job descriptionJob Role: Client Relationship Co-ordinatorLocation: Hybrid working with travel to Luton when required<strong clas ...

Client Relationship Coordinator

Job descriptionJob Role: Client Relationship Co-ordinatorLocation: Hybrid working with travel to Luton when required<strong clas ...

Senior Low Latency Rust Engineer

For additional information, please review .**Senior Low Latency Rust Engineer**Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few ...

Customer Success Technical Architect

**Introduction**At IBM Global Sales, we bring together innovation, collaboration, and expertise to help clients solve their most complex business challenges. Working across industries and geographies, you’ll partner with colleagues, clients, and partners to co-create solutions that drive digital transformati ...

Application & Systems Engineer BAE Systems

Key Responsibilities Develop and maintain high‑performance software applications in C++ and Java for complex defence and aerospace systems. Design, configure, and troubleshoot Linux‑based operating environments and network interfaces to meet stringent security and reliability stan ...

Senior Software Engineer DevOps

Salary: £41,000 - 81,000 per year Requirements Strong experience with Java and Spring Experience with AWS and CI/CD pipelines Experience with SQL and NoSQL databases Experience with REST APIs and message brokers Experience with testing, inclu ...

Android Implementation Engineer (Chinese Speaking, £35k, Computer Software, London)

Android Implementation Engineer We have an exciting opportunity for an Android Implementation Engineer role in a California based computer software company. Job Requirements Building apps with Java/Kotlin, publishing apps to the app store, and dealing with third‑party SDKs of ...

Senior Backend Engineer in London MASS Analytics

Senior Backend Engineer London, United Kingdom Posted 12 months ago This is a job posted by our partner Jooble Tech stack NoSQL optimization Backend Databases Java SQL SQL & NoSQL Below is a snippet of ...

Software Engineer

Software Engineer – 12 month contract Location: Newcastle or Guildford. Compensation: £60 per hour, Inside IR35. Responsibilities Develop high‑quality, readable, scalable and easily maintainable code using Java and related technologies. Create reusable patterns and en ...

General application for candidates (perm or contract) with ACTIVE SC clearance

This is a remote position. This is a general application for for any candidates (contract or perm) with active, current SC level security clearance.We work with primes on a number of government and defence engagements where the primary requirem ...

Platform Engineer

Senior Platform Engineer - Developer Platform / Internal Tooling London - Hybrid (Very flexible, weekly, fortnightly or even x1 day per Month) Here at Burns Sheehan, we’re working with a high-growth FinTech that uses data and technology to modernise one of the biggest but most outdated ar ...

Junior Software Developer Cloud & Data Science SynergisticIT

Key Responsibilities Develop and maintain cloud‑native applications using AWS services such as EC2, S3, and Lambda. Implement data pipelines and ETL processes to ingest, transform, and store large datasets. Collaborate with data scientists to build and deploy machine lea ...

Junior Salesforce Marketing Cloud Developer — Hybrid London

Experian is looking for a motivated Junior Salesforce Marketing Cloud Developer to optimize their Salesforce Marketing Cloud platform. This role is based in London and offers a hybrid work model, with 40% office presence. You will collaborate with developers and campaign teams to create personalized ma ...

BODS Developer – Hybrid (Leeds) | ETL & BI Specialist

LA International is seeking a BODS Developer for a 6-month contract based in Leeds with a hybrid working model. The role involves developing data architecture and MI solutions, requiring strong skills in SAP Business Objects and effective stakeholder management. Key responsibilities include BODS design ...

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