Senior Software Engineer

Senior C# Engineer | Front Office / Investment Technology | London | £160k base + bonus

I’m working with a leading systematic investment firm looking to hire a Senior C# Engineer into their post-trade engineering team.

The role sits within a centralised technology function where engineers have real ownership, contribute to architectural decisions, and work closely with business stakeholders to shape product direction.

What you’ll be doing:

• Designing and building scalable backend systems in C#/.NET
• Developing APIs and data-driven applications powering client-facing platforms
• Working closely with stakeholders to translate requirements into technical solutions
• Contributing to system design, architecture, and long-term technical direction
• Supporting and improving production systems in a high-quality engineering environment

What they’re looking for:

• Strong C#/.NET engineering experience in production environments
• Solid computer science fundamentals and system design capability
• Experience building scalable, reliable applications
• Comfortable working with stakeholders and contributing to product decisions
• Exposure to modern front-end frameworks (Angular, React or similar) is beneficial
• 4 days per week in London office

Compensation:

• Competitive base (c.£150k–£160k) + bonus