851 reactjs developer jobs in United Kingdom.

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JOSEPH HARRY LTD

Agentic AI Software Engineer Python Developer Finance London

Today

Full-time

IT
Backend

Company: JOSEPH HARRY LTD Job Type: Permanent [{"name": "permanent_employment", "text": "Permanent", "categoryName": "Type of employment"}]

London, United Kingdom

Mercor

Python Developer - PyCharm Expert

1 day ago

Remote
Contract

Backend

$55 - $65 per hour

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey .

London, United Kingdom

Hays Technology

AWS Python Developer - Active SC Clearance

1 day ago

Remote
Contract

Backend

£420 per day

... Lambda - CloudWatch - Copilot - EC2 - ETL - GitHub - Support - Python - Security - Serverless - pytest - Cloud More: We are recruiting an experienced AWS Python Developer for a hands-on development and production support role. The contract is remote for six months, paying up to £420 per day inside IR35. Hays Specialist Recruitment ...

London, United Kingdom

Vetcove

Staff Developer Experience Engineer

1 day ago

Remote
Full-time

$170k - $230k per annum

... Vetcove is a fast-growing, mission-driven company. We are searching for talented and passionate people who want to help shape the future of veterinary care. Developer Experience Engineer (Staff Level) Vetcove is seeking a Staff Engineer to help us build 10x faster. AI is changing how software gets built, and we want someone ...

United Kingdom

Experis

Senior Python Developer

1 day ago

Remote
Hybrid
On-site
Full-time

Backend

£18k - £19.44k per annum

... React - Vue - numpy - pandas - UX UI Design - Cloud - Web More: We are a forward-thinking company located in London, seeking a highly skilled Senior Python Developer to join our team for a 14-month project. Our platform is essential for Monetary Analysis, Forecasting, and Modelling activities. We offer a collaborative environment ...

Holborn, United Kingdom

RECOPS

Contract SC Python Developer - Python, Flask/Django, AWS - £600 Per Day - Inside IR35 - Remote

1 day ago

Remote
Contract

Backend

£600 per day

Company: RECOPS Job Type: Contract Salary: £600.00 - £600.00 []

Leeds, United Kingdom

Quant Capital

Software Developer- C#

1 day ago

On-site

IT
Fullstack

£65k per annum

... specialize e-invoicing and invoice finance. Salary: £65k + Bonus + Options + Flex Working + Pension C# https://jobeax.com/link/GrYTXLZMpxEMJknV MVC FullStack Developer – Fintech50 Quant Capital is urgently looking for a C# https://jobeax.com/link/GrYTXLZMpxEMJknV MVCDeveloper to join our high profile client. My client is ...

London, United Kingdom

Spectrum IT Recruitment

Software Developer - C# / .NET

1 day ago

Hybrid
On-site
Full-time

£40k - £50k per annum

... customer-facing applications. Technologies: - Bootstrap - C# - Git - MVC - SQL - https://jobeax.com/link/GrYTXLZMpxEMJknV More: Were recruiting a Software Developer – C# / .NET to join an industry-leading company experiencing exciting growth. Youll join a skilled development team in a supportive, fun company culture where ...

Brighton, United Kingdom

Quant Capital

C# .Net Core Developer - Fintech50- Manchester

1 day ago

On-site

£65k per annum

... platforms. Firm: Global Fintech firm that specialize e-invoicing and invoice finance. Salary: £65k + Bonus + Options + Flex Working + Pension C# .Net Core Developer – Fintech50 Quant Capital is urgently looking for a C# https://jobeax.com/link/GrYTXLZMpxEMJknV MVC Developer to join our high profile client. My client is ...

London, United Kingdom

JAC Recruitment

C#.Net Developer (Bank Project)

1 day ago

Remote
Hybrid
On-site
Full-time
Contract

Backend

£50k - £80k per annum

... Technologies: - C# - Support - Oracle - SQL - Windows - https://jobeax.com/link/GrYTXLZMpxEMJknV - Business Intelligence More: We are seeking a skilled C# .NET Developer to join our dynamic team. This is a 1-year contract with the potential to switch to permanent depending on performance. The role is based in London with hybrid ...

London, United Kingdom

Accenture

AI Led Senior Maximo Developer

1 day ago

On-site
Full-time
Contract

Job Description Role Title: AI Led Senior Maximo Developer Location: UK (With expected travel) Salary:Competitive salary and package dependent on experience Career Level: Consultant Please Note:Any offer of employment is subject to satisfactory BPSS and SC security clearance which requires 5 years continuous UK address ...

London, United Kingdom

Integrity Recruitment Solutions Limited

Lead BI Developer

1 day ago

Remote
Full-time

Business Intelligence

£40k - £70k per annum

Salary: £40,000 - 70,000 per year Requirements: - Established lead BI Developer with a strong track record of designing and building data platforms - Experience with SQL, Microsoft Fabric, Python/PySpark, and Data Factory - Exposure to AI-based tools such as Microsoft Copilot is an advantage - Managerial and leadership ...

Birmingham, United Kingdom

LITIT

LEAD DEVELOPER / FEATURE TEAM LEAD - AWS / JAVA / ANGULAR

1 day ago

Remote
Hybrid
On-site

€4k EUR - €6k EUR / month

... Drive development best practices, code quality, maintainability, and continuous improvement. Review code and provide technical feedback and mentoring to other developers. Collaborate closely with architects, developers, product stakeholders, and other technical teams. Help identify and resolve technical challenges, dependencies, ...

United Kingdom

Version 1

Senior .Net Developer

1 day ago

Backend

... and we reward those who display and foster them, it’s deeply embedded within our DNA. Invest in us and we’ll invest in you!. We are looking for a Senior .NET Developer with strong experience in maintaining and enhancing legacy Microsoft applications. You will work across https://jobeax.com/link/GrYTXLZMpxEMJknV Web Forms, ...

Belfast, United Kingdom

Quant Capital

Lead Developer/ Team Lead

1 day ago

On-site

£65k per annum

... migration, greenfield trading platform development, and bank based API creation. Our client is a well known fintech software house in the City. Day to Day the Lead Developer/ Development Managers will: - Line management and personal development of a team of highly skilled developers - Likely to be 70:30 split of development / management ...

London, United Kingdom

Solirius Reply

Senior .NET Developer

1 day ago

Full-time

Backend

... comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. The Role: We are looking for an experienced .Net Developer to join our team here at Solirius. You will be working as part of a team, developing and delivering exciting projects with a fantastic team of technology experts. ...

Coventry, United Kingdom

Version 1

Senior .Net Developer

1 day ago

Backend

... those who display and foster them, it’s deeply embedded within our DNA. Invest in us and we’ll invest in you!. Job Description About the Role: As a Senior .NET Developer, you will work closely with several customers to maintain, develop, and innovate on business-critical applications — including full end-to-end delivery through ...

Belfast, United Kingdom

Isio

Senior .Net Developer

1 day ago

Hybrid

Backend

We’re looking for a senior developer to design and build backend services for our investment technology platform, supporting portfolio management, financial analytics, reporting and integrations. This is a hands-on engineering role with ownership from design through to production. You’ll work closely with product stakeholders ...

Manchester, United Kingdom

Blue Coding

Senior .NET Developer (V)

1 day ago

Remote
Full-time

Backend

Why Blue Coding? At Blue Coding, we specialize in hiring excellent developers and amazing people from all over Latin America and other parts of the world. For the past 11 years, we’ve helped cutting-edge companies in the United States and Canada build great development teams and develop great products. Large multinationals, ...

United Kingdom

Social Discovery Group

Senior .NET Developer (Fintech)

1 day ago

Remote
Full-time
Contract

Backend

€1k EUR - €2800 EUR / year

... two-time “Great Place to Work” winner (USA & Japan, 2024–2025) and a Top-5 Company for Work-From-Anywhere Jobs (FlexJobs, 2025). We are looking for a Senior .NET Developer (Fintech) . Your main tasks will be: - Develop and maintain backend services for payment processing and the back office: reconciliation, payouts, fee calculation, ...

United Kingdom