2 api developer jobs found in London, remote

Contract React Native Developer (Outside IR35) Remote | 6–8 Week Initial Project + Ongoing Retainer We’re looking for an experienced React Native Developer to support an established mobile application used across Android and iOS. This is an initial 6–8 week project focused on delivering two key enhancements to an existing production application, with the opportunity for ongoing work (approx. one week per month) for continued development and maintenance. You’ll be joining a mature product environment and working closely with backend engineers and the product team to deliver improvements to a live application. Key Responsibilities Develop and enhance features within an existing React Native mobile application Work across both Android and iOS platforms Collaborate with backend developers to integrate APIs and services Contribute to improvements within a large, production-level codebase Deliver clean, maintainable and...

Role: Expert .NET Developer - Cross Asset Trading System Location: Very Flexible. Can offer Remote with occasional travel to London City offices Contract: 12 months Rate: Up to £750/day (OUTSIDE IR35) About the Role: We are partnering with a leading investment bank on an ambitious programme to modernise and enhance their cross-asset trading systems. This is a technically challenging, hands-on role, ideal for an expert .NET developer with a strong SQL Server background and experience working in financial environments. Please note, you MUST have very strong low level C#, able to work through complex multithreaed performance issues. Good understanding of multi-threading, garbage collection, concurrency, the CLR is very important for this role. You will be joining a highly skilled team focused on performance, reliability, and scalability, tackling complex issues in Real Time, data-driven applications. This is purely a tech-heavy role-business knowledge is helpful but not...