C# Developer/£750/day | Outside IR35 | 12 month+ | Largely Remote/London at CipherTek Recruitment, ec2a, £600-£775 per day

Senior C# Developer - Investment Banking

£750/day | Outside IR35 | 12-month rolling contract | Largely Remote

If you're a strong C# engineer with genuine Event Sourcing experience and interested in a long term banking project, get in touch

I'm working with a leading investment bank looking for a strong Senior C# Developer to join a long-term project building and enhancing a large-scale Structured Notes platform.

This is a hands-on engineering role with approximately 80% Back End C#/20% frontend, working on complex, distributed systems.

The role:

You'll be working across a modern .NET platform, designing and developing scalable Back End services while contributing to the Angular Front End where required.

The environment involves large-scale distributed systems, asynchronous processing, Multithreading and event-driven architecture.

Core technical requirements:

Excellent C#/.NET development experience

Strong .NET 8 knowledge

Previous commercial Event Sourcing experience - essential

Strong understanding of multithreading, concurrency and asynchronous programming

Experience building large-scale distributed systems

Strong software engineering and system design fundamentals

Comfortable working across an existing complex codebase

Frontend - around 20% of the role:

TypeScript

Angular

RxJS

Redux

SignalR

Wider stack:

MongoDB | Solace | GitHub | TeamCity | Cypress | JIRA

Previous experience within investment banking/capital markets is highly desirable, particularly experience working with structured products, derivatives or similar Front Office systems.

This is a 12-month rolling contract with strong potential for longevity.

?? £750/day

?? Outside IR35

?? Largely remote - current office attendance is optional

?? Investment Banking

If you're a strong C# engineer with genuine Event Sourcing experience and interested in a long-term banking project, get in touch