🇪🇺 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.
Ready to apply for this position?
Apply directly through the official application portal.