Senior C# Engineer​/Hedge Fund

Consultant | Quantitative & Software Development | Selby Jennings | French, Swiss & UK Market

Our client is a prestigious international hedge fund with over two decades of success in fixed‑income strategies. They are seeking a Senior C# Engineer to join their Middle Office and Trade Support team. In this role you will collaborate with a high‑performing global team to deliver business‑critical software solutions that power cutting‑edge trading and research operations.

If you’re looking for an exciting C# opportunity in Geneva, this is your chance! As a Senior C# Engineer, you’ll play a key role in developing and enhancing trading‑desk systems in a dynamic environment where technology drives innovation.

• Own and enhance the central trade‑booking application and APIs for ingesting and exposing trade data.
• Develop and maintain FIX trade infrastructure to support electronic trading workflows.
• Operate and optimise the real‑time P&L and Risk engine, ensuring accurate and timely reporting.
• Collaborate closely with traders and stakeholders to ensure system reliability, scalability, and performance in a fast‑paced environment.

• 6+ years of hands‑on experience in C#, with strong knowledge of design patterns and best practices.
• 6+ years of experience with relational databases and SQL, including data modelling and database design.
• Solid expertise in architecture design, system design, and data structures.
• Strong proficiency in Python.
• Proven track record working across diverse technologies, applications, and end‑to‑end development.
• Financial industry experience is essential.
• Excellent written and verbal communication skills.

• Join a world‑class hedge fund with a proven track record.
• Work in a fast‑paced, collaborative environment in Geneva, Switzerland.
• Be part of a high‑performing international team where technology drives trading and research innovation.
• Benefit from a culture that values technical excellence, innovation, and continuous learning.
• Enjoy an attractive compensation package, including a competitive salary and comprehensive relocation support.

They are primarily looking for someone to join their Geneva office, but are also open to considering candidates for their Zug location.

Seniority level:
Mid‑Senior level

Employment type:

Full‑time

Job function:
Finance, Information Technology, Design

Industries:
Investment Management, Financial Services, Engineering Services