Senior C# .NET Full‑Stack Developer

About the role

Sigma Suisse is recruiting a Senior C# .NET Full‑Stack Developer for a client in the trading sector, based in Geneva. You will help evolve a comprehensive analytics platform that processes large proprietary and third‑party data sets.

Key responsibilities

• Design and develop analytical platforms for traders, analysts, researchers and data‑science teams.
• Collaborate with an international development organization and convert user insights into design improvements.
• Write clean, well‑documented, tested and scalable code aligned with business goals.
• Provide application support and user training for daily operations.
• Participate in projects such as GIS implementations, data‑collection frameworks and custom trading assessments.

Required profile

• Minimum 8 years of professional experience with C# and .NET in enterprise environments.
• Strong knowledge of relational databases and SQL (Oracle, SQL Server, PostgreSQL).
• Proven experience with Agile Scrum development methodologies.
• Excellent communication and stakeholder‑engagement skills.
• Self‑directed, organized and able to manage shifting priorities.

Required skills

• C#
• .NET Framework
• SQL
• Oracle
• SQL Server
• PostgreSQL
• Agile Scrum