Seeking a .NET Developer

Start Date: 01/06/2026

Application Deadline: 29/04/2026

Location: Brussel

Onsite Requirement: 2 days a week

Conformity Criteria:

• Minimum 8+ years of experience in C#/.Net development
• Minimum 5+ years of experience in MS SQL Server (2022+)
• Minimum 5+ years of experience in Microsoft technologies, particularly in Microsoft .NET Core Web API
• French native or fluent (level Cx) with professional knowledge of Dutch or English

Evaluation Criteria:

Hard Skills:

• Expertise with GIT, its tools, and its philosophy
• Proficiency in design patterns like CQRS, Repository, Unit of Work, Command & Singleton
• Ability to write code adhering to SOLID design principles
• Strong affinity for writing well-covered unit tests
• Expertise with Visual Studio 2022, Visual Studio Code
• Proficiency in AI tools

Soft Skills:

• Strong listening and communication skills
• Strong analytical thinking
• Pragmatic and hands-on approach
• Can-do attitude

Description:

Join a team of experienced and talented developers as a senior developer to engineer a complex competence management system. This role involves dealing with many technical and non-technical stakeholders in a fast-paced environment.

Key Tasks:

Backend:

• Develop APIs
• Implement business logic and application workflows
• Integrate external services (third-party systems)
• Design database schemas (SQL Server)
• Work with databases (CRUD operations, queries, performance tuning)
• Handle authentication & authorization (e.g., JWT, OAuth)

Frontend:

• Build UI in Blazor and with JavaScript frameworks
• Create responsive and user-friendly interfaces
• Consume APIs and manage client-side state

DevOps & Deployment:

• Use CI/CD pipelines (Azure DevOps, GitHub Actions)
• Deploy applications to cloud platforms like Microsoft Azure

Testing & Quality:

• Write unit tests (xUnit, NUnit, MSTest)
• Ensure code quality and maintainability

Security & Performance:

• Implement secure coding practices
• Handle input validation and data protection
• Optimize performance (caching, async programming)

Collaborate with other project members (Project Lead, Analyst, Testing, etc.) and participate in Agile ceremonies (scrum, planning, refinement, review, etc.).