Medior C#/.NET Developer

About the role

We are looking for a Medior C#/.NET Developer to join a large‑scale, customer‑oriented organization in Brussels. The role focuses on building and maintaining robust backend services for web platforms while collaborating with cross‑functional teams.

Key responsibilities

• Develop scalable .NET Core / .NET 6+ applications and RESTful APIs.
• Monitor, analyse and optimise backend performance and reliability.
• Integrate APIs with frontend and other systems to enable real‑time data exchange.
• Write clean, maintainable code following architectural best practices.
• Implement automated testing, code reviews and CI/CD pipelines.
• Provide L2/L3 production support and be on‑call for critical incidents when required.

Required profile

• 3‑5 years of hands‑on experience in C#/.NET backend development.
• Strong knowledge of SQL Server and ORM tools such as Entity Framework Core.
• Good understanding of software architecture, design patterns and modern development principles.
• Experience working in Agile environments.
• Professional proficiency in English; Dutch or French is a plus.

Required skills

• C#
• .NET Core / .NET 6+
• RESTful APIs / Web API
• SQL Server
• Entity Framework Core
• Git
• CI/CD pipelines
• Sitecore, Umbraco or Optimizely (nice to have)
• L2/L3 production support

What we offer

• Hybrid work model (2 days on‑site per week).
• Permanent contract with flexible working hours.
• Attractive salary package and extra‑legal benefits.
• Fast and efficient recruitment process.