33 reactjs developer jobs in London, United Kingdom.

£77k - £89k per annum

Salary: £77,000 - 89,000 per year Requirements: - Current and active SC Clearance. - Strong commercial experience as a Senior/Full Stack Developer. - Strong Python and Java development experience. - Strong hands-on AWS experience. - Experience with REST APIs and microservices. - JavaScript/TypeScript with React, Angular, ...

£100k - £120k per annum

Join a company redefining a market. Code in a cloud native environment, crafting features to power innovation that enterprises will use on a global scale. You'll work across the full software lifecycle, designing and building distributed services, APIs, and data-driven applications that operate at significant scale.

• Hybrid
• Contract

About The Role FDM is a global business and technology consultancy seeking a Senior Java Developer (Electronic FX Trading) to work for our client within the Banking & Financial Services sector. This is initially a 12-month contract with the potential to extend and will be a Hybrid role that will be based in London. Our ...

• Remote

... collaborative environment to make a real impact. The Role - Develop, enhance, and support business-critical applications using Java. - Collaborate with fellow developers, technical stakeholders, and product teams to deliver robust software solutions. - Contribute to engineering best practices and technical discussions. - Design, ...

• Full-time

£41k per annum

Company: EXPERIS Job Type: Permanent, Full Time Salary: £41000/annum

• Hybrid
• On-site

£450 per day

... reliable, high-quality solutions. Technologies: - Git - Support - Java - Kubernetes - Linux - Maven - Oracle - SQL - Security More: We are offering a 6-month Java Developer opportunity based in Telford on a hybrid basis, with 2 days per week onsite. This role is inside IR35 and offers up to £450 per day. You will join a collaborative ...

• Remote

£45k - £65k per annum

.NET Developer – Europe’s Largest Radio Station Group – London (Tech stack: .NET Developer, .NET 10.0, https://jobeax.com/link/GrYTXLZMpxEMJknV Core, C# 14, .NET MAUI, https://jobeax.com/link/urFdRGLLbPRgynaI, Azure AI, GitHub Copilot, Docker, Kubernetes, .NET Aspire, CI/CD, HTML Living Standard, CSS Living Standard, Programmer, ...

• Remote

£95k - £115k per annum

.NET Developer – London (Tech stack: .NET Developer, .NET 10.0, https://jobeax.com/link/GrYTXLZMpxEMJknV Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, https://jobeax.com/link/GrYTXLZMpxEMJknV Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) After 15 years’ experience ...

• Remote
• Hybrid
• On-site

£40k - £60k per annum

.NET Developer, .NET 10.0, C# 14 – Global Record Label – London (Tech stack: .NET Developer, .NET 10.0, https://jobeax.com/link/GrYTXLZMpxEMJknV Core, C# 14, Azure, Angular 21, https://jobeax.com/link/tzGekrj9a8ToGEDv, TypeScript, Multithreading, RESTful, https://jobeax.com/link/GrYTXLZMpxEMJknV Core Web API, EF Core 10.0, ...

Job Title: RAD Developer Location: London Department: Front Office - RAD Technology Permanent Department overview: The front office RAD technology team are responsible maintaining and building trading desk tools, both bespoke to pods and general to a desk. The team sits within the Front office technology group which also ...

• Remote

£200k per annum

A leading algorithmic trading firm, renowned for its cutting-edge technology and exceptional talent, is seeking a skilled Python Developer. This company operates at the forefront of financial innovation, leveraging advanced systems to drive market-leading performance. The Role - Develop and maintain infrastructure and software ...

• Remote
• Hybrid

... and conversations that developers trust. You’ll also bring community insights back into JFrog’s R&D and business teams to influence product direction. As a Developer Advocate at JFrog you will: - Represent JFrog across developer, DevOps, security, and platform-engineering communities through conferences, meetups, webinars, ...

• Hybrid
• On-site
• Contract

Job Description Senior KDB+ Developer Location: London, UK Employment Type: Permanent / Contract (depending on engagement) Company: Talan Hybrid Working: 3 Days Per Week onsite About the Role Talan is seeking an experienced Senior KDB+ Developer to join a high-performing front-office technology team supporting Fixed Income ...

• Hybrid

£70k - £80k per annum

... operates in financial services and is a certified B-corporation, with a strong focus on ethical and environmental investments. You would join as the senior developer, focusing on the backend. Exposure and understanding of the frontend is ideal, Angular or React, the technologies in play. You’ll upskill the more junior members ...

Job Summary As a Senior Java Developer at Eeze you will play a crucial role in shaping the development of our live casino games from concept to delivery. This position is perfect for those with a startup mindset, the ability to work independently, take initiative, and make their own decisions. Main Responsibilities - Design ...

£60k - £75k per annum

... scalable applications. - Maintain and optimise existing systems to ensure high performance and reliability. - Provide technical guidance and mentorship to junior developers. - Ensure code quality through regular reviews and adherence to best practices. - Identify and resolve technical issues promptly to minimise downtime. - Contribute ...

• Hybrid

£70k - £80k per annum

... result have a genuine impact in the business so your presence will certainly be felt. The role would ideally call for five years’ experience as a Software Developer, however if you do lack the 5 years but have had extensive experience working as a developer within finance then certainly still feel confident that this opportunity ...

• Hybrid
• Contract

£750 per day

Role: Principal / Senior Java Developer – Elite FinTech Rate: Up to £750 per day Location: London Working Pattern: Hybrid Contract: Contract The Role They are looking for an exceptional Principal / Senior Java Developer to join a high-calibre engineering team, working alongside some of the industry's strongest developers, ...

Join the Equity Accelerator programme to modernize critical Prime Finance Equities trading platforms. The role focuses on building and evolving highly scalable backend systems using Kotlin and Java, with event-driven, cloud-native architectures.

£70k - £80k per annum

... senior to come in and provide great foundational knowledge to platform the team into a position for further success. The company is looking for a Senior Java Developer like yourself to join them on their upwards journey. As a Senior Java Developer, you will be building applications and APIs with Java, working on a SpringBoot ...