Home › Jobs › Belgique › Senior Developer .NET
🇪🇺 Belgique • Permanent

Senior Developer .NET

🏢 Rhox 📍 sint joost ten node 💰 €70 - €90 📅 24 October 2026

Job Description

We're looking for a senior .NET developer to design, develop and maintain Microsoft-based applications. You'll combine hands-on development with technical mentoring, helping keep solutions scalable, secure and maintainable.

What you'll do

  • Translate functional requirements into technical solutions with analysts.
  • Design scalable software solutions with architects.
  • Review code against development best practices.
  • Coach developers on technical decisions and implementation.
  • Optimise application performance.
  • Evaluate and integrate new technologies against business needs.

What you bring

  • Senior-level experience in software design, development and maintenance.
  • Hands-on experience with .NET Framework, .NET Core, Blazor and Entity Framework.
  • SQL and REST APIs for application development.
  • Authentication and authorisation using JWT, OIDC and claims.
  • Unit and integration testing to support code quality.
  • Experience with Agile development and GitHub Copilot.
  • Critical analysis and structured problem-solving, including assessing alternatives and drawing conclusions.
  • Technical leadership and collaboration, with the ability to adapt to technical changes.
  • French or Dutch, C2.
  • English, C1.

Good to know

  • 40-hour working week, with flexible hours between 07:30 and 20:00.
  • Core hours are 09:00 to 12:00 and 13:00 to 16:00.
#J-18808-Ljbffr

Ready to apply for this position?

Apply directly through the official application portal.

Apply Now →