851 reactjs developer jobs in United Kingdom.

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Haystack

Python Developer

9 days ago

Full-time

Backend

£200k per annum

Join a development team building software and infrastructure tools. This role offers varied work with Python and opportunities to improve shared platforms. The Role - Develop Python tools and integrate existing libraries. - Build and maintain platforms supporting server and network management.

London, United Kingdom

Digital Engineer Developer - Agentic AI Engineer

9 days ago

AI / ML

56k / year

Atos is the Atos Group brand dedicated to AI-powered, secure, end-to-end digital services.

United Kingdom

Lead Software Developer

9 days ago

56k / year

... stakeholders and delivery partners. - Participate in show-and-tell sessions, demonstrations, and technical workshops. - Contribute to the wider engineering and developer communities. - Communicate technical concepts effectively to both technical and non-technical audiences. Essential Skills & Experience Software Engineering ...

United Kingdom

Erin Associates

Senior Java Developer

9 days ago

Remote
Hybrid
On-site
Full-time

Backend

£55k - £62k per annum

... leadership, improve development efficiency and release quality, and introduce new technologies - Take responsibility for the roadmap and collaborate with external developers and architecture teams to inform technology decisions - Own solutions, drive projects forward, and ensure they align with business needs - Work collaboratively ...

York, United Kingdom

Lead Developer

9 days ago

Remote
Hybrid
On-site
Full-time

£55k - £62k per annum

Lead Developer – Remote-first (monthly visits to North Yorkshire) £55,000 - £62,000 + Excellent benefits I am currently hiring for a proven Senior / Lead Developer with extensive experience of Java and TypeScript, who is capable of working in a lead capacity for a growing business. You will provide effective technical leadership, ...

North Yorks, United Kingdom

Hexwired Recruitment Limited

Quantitative Developer

9 days ago

Remote
Hybrid
On-site
Full-time

£30k - £60k per annum

Salary: £30,000 - 60,000 per year Requirements: - Degree in Computer Science, Mathematics, Physics, Engineering, or a related discipline - Strong Python programming experience and knowledge of data structures, concurrency, and memory management - Experience developing scalable, modular, high-performance production

London, United Kingdom

Quant Capital

Android Developer - Fintech

9 days ago

Remote
Hybrid
On-site

Product Management
Mobile

£90k per annum

Android Developer – Fintech To £90,000 Quant Capital is urgently looking for an Android Developer to join our high profile client. They have recently raised (PE and Bank) £50 million and are set for another £100 million raise in February. They are acquiring users at 50,000 per month and the boards aim is for a £2billion ...

London, United Kingdom

REPERIO HUMAN CAPITAL

Java Developer (Mid-Level)

9 days ago

Remote
Hybrid
On-site
Full-time
Contract

Backend

Salary: £? - ?

United Kingdom

Haystack

Java Software Developer

9 days ago

Remote
Hybrid
On-site

£50k per annum

An employer is seeking a Java Software Developer to join their engineering teams, working on large-scale, business-critical systems within a technology business. The Role - Work on complex systems in an environment that values engineering craft and continuous improvement - Apply Agile and XP practices including TDD, pairing, ...

Manchester, United Kingdom

STEALTH IT CONSULTING

Java/Scala Developer - Active SC - £600 Inside - 12 Months - Remote

9 days ago

Remote
Contract

£600 GBP

Company: STEALTH IT CONSULTING Job Type: Contract []

United Kingdom

Mercor

Software Developer - AI Projects

9 days ago

Remote
Full-time
Contract

$50 - $60 per hour

... Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: Software Developers (Must own MacBook) Type: Contract Compensation: $50–$60/hour Location: Remote Commitment: 10–20 hours/week Role Responsibilities - Complete and narrate real ...

London, United Kingdom

IntelStack

Manager - Principal Consultant, iOS Developer

9 days ago

Mobile

Seeking an experienced iOS Developer to build secure, high-performance native mobile applications in Swift and SwiftUI. The role covers the full app lifecycle, from architecture and UI to authentication, testing and App Store releases. Inviting applications for the role of Manager - Principal Consultant, iOS Developer At ...

London, United Kingdom

Quant Capital

JavaScript Node.JS Developer Blockchain

9 days ago

Backend

... commodity industry and overall the opportunity to influence the direction of the project and create a software system to be proud of. Day to Day Javascript Developers will: - Working on development of products in an agile manner delivering high quality, tested code - Work with the Tech Lead and other developers to help ...

London, United Kingdom

G2i Inc.

Senior FullStack Developer

9 days ago

Remote
Full-time

IT
Fullstack

com/link/JSd7UYCSg572jJDY services, and Web3 integrations. - Build and scale decentralized applications integrating wallets, DeFi protocols, and on-chain data. - Integrate Web3 libraries, SDKs, packages, and APIs into reliable product workflows.

United Kingdom

Baltimore Consulting Group

SQL Developer

10 days ago

Hybrid
Contract

£450 per day

SQL Developer 4 Month Contract | ASAP Start £450 per day Outside IR35 Hybrid Working CVs are being reviewed immediately and interviews will be taking place shortly, with a view to starting as soon as possible. Are you an experienced SQL Developer with specialist NEC Housing reporting expertise? This is a fantastic opportunity ...

London, United Kingdom

Akkodis

AI & Automation Solutions Developer

10 days ago

Remote
Hybrid
On-site
Full-time
Contract

£50k - £65k per annum

... different approach is more appropriate Technologies: - AI - Copilot - Cursor - Security - Web More: We are an established business creating a new AI & Automation Developer role within our existing IT team. The role offers an ongoing pipeline of varied development work, ownership, room to experiment and the opportunity to influence ...

Nottingham, United Kingdom

Ada Meher

Senior PHP Developer (R&D) - Doncaster (Hybrid Remote)

10 days ago

Remote
Hybrid
On-site
Full-time

Backend

£45k - £70k per annum

Salary: £45,000 - 70,000 per year Requirements: - Strong experience in PHP/Laravel development - Creative problem-solving and programming skills - Interest in emerging technologies and AI enablement - Experience with software optimisation and performance tuning - Experience with AI/Python would be beneficial

Doncaster, United Kingdom

bet365

Senior Software Developer, Verification

10 days ago

Remote
Hybrid
On-site
Full-time

... systems, while ensuring the highest quality standards for our software products, in a fast-paced, hard-working environment. Your skills as a Senior Software Developer should set the standard to a talented group of developers to innovate and excel in delivering reliable solutions, while fostering a collaborative and dynamic ...

Manchester, United Kingdom

bet365

Software Developer, Cerberus

10 days ago

Remote
Hybrid
Full-time

... anyone else in Europe (750,000), we handle over 6 million requests daily and process more than 1.5 million bets per hour at peak. Job Description As a Software Developer, you will build the future of identity verification, creating AI-driven solutions that power our global platform. As a Software Developer, you will build the ...

Manchester, United Kingdom

Access Computer Consulting

C# Developer

10 days ago

Remote
Hybrid
On-site
Contract

Backend

... maintaining data accuracy and system performance while meeting demanding deadlines Technologies: - C# - Support - SQL More: We are recruiting an experienced C# Developer with strong SQL and data analysis skills for regulatory reporting work in a banking environment. The role is based in London and follows a hybrid schedule ...

City of Worcester, United Kingdom