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October 1, 2026

C# .NET Backend Developer

Junior • On-site

Paris, France

Quick Facts

  • Role: C# .NET Backend Developer (Market Finance)

Description

Contribute to an IT team in market finance by developing and maintaining APIs and critical features for data-processing applications.

Responsibilities

  • Develop and implement APIs for data access from the Front to Back tool
  • Build new features for the existing LightTrade tool
  • Perform evolutive and corrective maintenance of the application
  • Support and analyze incidents
  • Participate in the migration project to a new Front to Back tool
  • Collaborate with IT and business teams

Requirements

  • Confirmed experience in C# / .NET backend development
  • Strong knowledge of REST APIs and SQL
  • Experience with complex and/or critical applications
  • First experience in market finance (preferred)
  • Autonomy, rigor, and strong team spirit

Benefits

Technical environment: C#, .NET / .NET Core, REST APIs, SQL, Git

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