Senior Developer C# .Net

Sigma Suisse; Genf; On-site; CHF 140,000 - 210,000; Full time

Job summary

Sigma Suisse is seeking its client, a trading company in Geneva, for a Full Stack Senior Developer C# .Net to contribute to the analytics infrastructure powered by proprietary and third-party data sources.

The role involves collaboration with multiple business units to define requirements and deliver diverse technical solutions, including GIS deployments and data-driven trading assessments in a dynamic environment.

Qualifications

• 8+ years of professional experience with C#/.NET in enterprise environments.
• Strong SQL skills with Oracle, SQL Server and PostgreSQL.
• Experience in Agile Scrum development.
• Excellent stakeholder engagement and communication skills.
• Self-directed with strong organizational skills and adaptability to shifting priorities.
• Fluent English communication (verbal and written).

Responsibilities

• Develop analytical platforms for traders, analysts, researchers and data science teams.
• Collaborate within an international development organization.
• Translate user insights into design enhancements and issue resolutions.
• Create clean, well-documented, tested, and scalable code to meet business objectives.
• Deliver application support and user training for daily operations.
• Contribute to GIS implementations, data distribution frameworks and data-driven trading assessments.

Skills

C# / .NET

Agile Scrum

Communication

Self-directed

Problem solving

English fluency

Tools

SQL (Oracle)

SQL Server

PostgreSQL

Job description

Sigma Suisse is seeking for its client, a company in the trading sector, a Full Stack Senior Developer C# .Net in Geneva.

As an experienced full stack developer, you will contribute to the continuous evolution of our client's comprehensive analytics infrastructure, powered by extensive datasets from their proprietary integrated trading platform and third-party sources.

The organization is experiencing significant growth and requires outstanding candidates to support their strategic objectives. This position offers direct collaboration opportunities with various business units, from operational staff to executive leadership, to define requirements and deliver diverse technical solutions.

Key Responsibilities

Working as part of the analytics division in Geneva, Switzerland, your duties will include:

• Developing innovative analytical platforms for traders, analysts, researchers, and data science teams
• Collaborating within an international development organization
• Converting user insights into practical design enhancements and issue resolutions
• Creating clean, well-documented, tested, and scalable code to meet business objectives
• Delivering application support and user training for daily operational needs
• Contributing to varied and challenging projects including:
• Geographic Information Systems (GIS) implementations
• Data collection and distribution frameworks
• Custom data-driven trading assessments

Required Qualifications

• Minimum 8 years of professional experience with C# and associated .NET frameworks in enterprise-level environments
• Proficiency with relational database management systems and SQL (Oracle, SQL Server, PostgreSQL)
• Demonstrated experience in agile scrum development methodologies
• Strong communication and relationship-building abilities for effective stakeholder engagement
• Proactive, user-centric approach with positive attitude and genuine interest in both functional and technical problem-solving aspects
• Champions software development industry standards
• Self-directed with strong organizational skills, deadline management capabilities, and adaptability to shifting priorities
• Fluent English communication skills, both verbal and written