The Client

Our client is a growing trading and technology business based in the City of London, and they're working closely with Tempest Vane Partners to find a Senior C# Software Engineer.

With a collaborative team of researchers and software engineers, they are developing cutting-edge tools and platforms to analyse and trade across niche markets. The culture is open, ideas-driven and free from unnecessary layers of bureaucracy. It's the perfect place for developers who want their work to make an immediate impact.

What You’ll Get

• Competitive compensation package with benefits including private health cover, pension and gym membership.
• A flat, non-corporate environment where ideas are valued over hierarchy.
• The chance to work on a mix of greenfield and existing projects, using the latest technologies.
• Long-term career progression as the firm continues to grow.
• A balanced approach to work and life, alongside regular team socials and a supportive culture.

What You’ll Do

• Build and enhance applications using C#/.NET and SQL Server as part of a small but highly capable team.
• Contribute to new product development, shaping systems from early stages through to delivery.
• Collaborate with researchers and colleagues from scientific and programming backgrounds.
• Ensure code quality, testing and performance standards are met across projects.

What You’ll Need

• A degree in Computer Science or related technical field.
• Recent hands-on experience with C# and the .NET platform.
• Strong knowledge of relational databases (SQL Server, Oracle, or equivalent).
• Excellent communication skills and a keen eye for detail.
• (Bonus) Exposure to web technologies (ASP.NET, HTML5), multi-threaded programming, network protocols, or version control systems (Git, Mercurial, etc.).

If you’re a motivated Senior C# developer looking to step into an ideas-driven, high-performance environment, we’d love to hear from you.