C# Developer - Front Office Trading - London

Salary: £70,000 - 90,000 per year

Requirements:

• Previous experience within a trading or front-office environment
• Financial markets knowledge sufficient to understand conversations around swaps, bonds and/or equities
• Strong C#/.NET development experience
• Ability to understand trading environments and solve problems quickly
• Comfortable communicating directly with traders under pressure
• Experience with Python, VBA or Excel would be an advantage

Responsibilities:

• Work closely alongside traders on the front office desk
• Investigate and resolve application issues quickly when traders need support
• Adapt tools to support specific trades and desk requirements
• Develop and improve the desks tools, primarily using C#/.NET
• Contribute within a broader environment that also includes Python, VBA and Excel
• Understand what traders are trying to achieve and determine the technical solution
• Communicate directly with users to support rapid problem-solving

Technologies:

• C#
• Excel
• Support
• Python
• VBA
• ASP.NET

More:

We are a front-office technology environment supporting traders in a hybrid role based in central London. This position offers the chance to work directly alongside a trading desk, seeing the impact of your work immediately and contributing to rapid problem-solving in a fast-paced environment. We use C#/.NET as our key technology, with Python, VBA and Excel also part of the wider stack. We are looking to move quickly and welcome applications from candidates with front-office development experience who enjoy working closely with traders.

last updated 32 week of 2026