Senior .NET Developer
Job in
1210, Saint-Josse-Ten-Noode, Bruxelles-Capitale, Belgium
Listed on 2026-07-13
Listing for:
Atcon Global
Full Time
position Listed on 2026-07-13
Job specializations:
-
Software Development
Backend Developer, .NET Developer, Senior Developer, Software Engineer
Job Description & How to Apply Below
Location: Saint-Josse-Ten-Noode
About the role
As a Senior .NET Developer, you play a key role in designing, developing, and maintaining robust software solutions based on Microsoft technologies. You bring in-depth technical expertise, ensure code quality, and act as a technical mentor for the team.
Responsibilities
Actively participate in the development of software components in .NET (Framework and Core)
Design scalable and maintainable solutions in collaboration with the architecture team
Provide technical coaching to team members and contribute to a culture of excellence
Conduct code reviews and ensure best practices
Analyze functional needs and translate them into technical solutions
Ensure the quality, performance, security, and maintainability of applications
Optimize system performance
Evaluate and integrate new technologies that align with business objectives.
Requirements
Technical requirements:
Minimum 7 years of experience with strong expertise in C#/.NET (Core, .NET 10) and developing scalable enterprise applications.
Expert in ASP.NET Web API with extensive experience building enterprise-grade APIs.
Expert-level proficiency in Entity Framework Core for data access and ORM implementation.
Extensive experience with ASP.NET MVC application development.
Hands-on experience implementing authentication and authorization using JWT, OpenID Connect (OIDC), and claims-based security.
Proven experience designing and consuming RESTful APIs.
Experienced with Swagger/OpenAPI for API documentation and integration.
Strong working knowledge of SQL Server and database design.
Practical experience with unit and integration testing to ensure application quality.
Working knowledge of Blazor with hands-on experience in recent projects.
Soft skills:
Critical information analysis and integration
Structured and solution-oriented thinking
Creativity in devising alternatives and drawing correct conclusions
Technical leadership and collaboration
Resilience and adaptability to technical or contextual changes
Language requirement:
Fluent in one of the two national languages: FR or NL (level C2*)
Very good level of English (level C1*)
Position Requirements
10+ Years
work experience
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