.NET Developer

Salary: £53,000 - 93,000 per year

Requirements:

• Strong C#, ASP.NET / .NET Core, and Web APIs experience.
• Solid experience in multithreading, asynchronous programming, and low-latency/high-throughput processing.
• Hands-on experience with RabbitMQ, or TIBCO/SignalR.
• Experience with AWS (EC2), Docker, Git/TeamCity, and SQL/NoSQL.
• Fixed Income or electronic trading domain knowledge is a nice to have.
• Exposure to JavaScript frameworks such as React or Angular, or broader AWS services, is a nice to have.

Responsibilities:

• Lead technical design, system architecture, and C# code delivery.
• Build low-latency, real-time microservices and RESTful Web APIs.
• Implement multithreaded and asynchronous processing for high-volume data streams.
• Maintain high test coverage using NUnit/Moq and automated CI/CD pipelines.

Technologies:

• ASP.NET
• AWS
• Angular
• C#
• CI/CD
• Docker
• EC2
• Git
• JavaScript
• NoSQL
• RabbitMQ
• React
• SQL
• SignalR
• TIBCO
• Teamcity
• Web
• microservices
• Cloud

More:

We are hiring a Senior .NET Developer in London for a hybrid role with 3 days in the office. You will help us build a brand-new greenfield electronic trading platform for Fixed Income and drive the architecture and design of a high-throughput, low-latency transaction processing engine hosted on AWS. We offer a quick 2-stage interview process.

last updated 36 week of 2026