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# C# Back End Developer

- **Company:** McGregor Boyall Associates Ltd.
- **Location:** London, UK
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), .NET Framework, Algorithmic Trading, Amazon Web Services, C Sharp (Programming Language), Cloud Computing, Distributed Systems, Financial Information EXchange, Enterprise Messaging Systems, Software Engineering, Solid Principles, Kubernetes, Low Latency, Api Design, Restful APIs, Docker, Microservices
- **Published:** July 22, 2026
- **Apply:** https://www.careerboard.com/pt/en/find-jobs-in-United-Kingdom/-D586FA5BE1CC5D1168/

## About the Role

* Strong commercial C# or Java experience
 * Trading systems experience in any asset class
 * Front Office technology experience
 * Distributed systems knowledge
 * Cloud experience, ideally AWS
 * Good understanding of software design principles
 * Some desktop UI experience would be beneficial
 * Experience building low latency or high throughput systems is advantageous

Nice to have

 * Docker or Kubernetes
 * Messaging technologies
 * FIX Protocol
 * Microservices
 * REST APIs

## Description

We're partnering with one of the world's leading financial markets technology firms as they continue investing heavily in their electronic trading platforms.

This is an opportunity to work directly with traders, architects and principal engineers building business critical trading systems that process high volumes of transactions in Real Time.

Although the team primarily develops in C#, they are very open to experienced Java Back End engineers looking to transition into .NET.
What you'll be doing

 * Building high performance Back End trading applications
 * Designing scalable distributed systems
 * Developing APIs and Back End services
 * Working closely with traders and Front Office stakeholders
 * Contributing to architecture and technical design
 * Modernising cloud based infrastructure
 * Working across the full software development life cycle


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