Senior .NET Software Engineer

Full-timeHybrid
Antwerpvia Brainsquare CareersPosted Oct 6, 2026
Match with my CV

Technical skills

C#API developmentSQLTest automation

About Brainsquare

Brainsquare designs, develops, integrates and manages business-critical applications. We combine technical expertise with a practical understanding of our customers’ operations, helping teams build and maintain reliable software.

Your mission

As a Senior .NET Software Engineer, you will join an experienced development team working on business-critical applications in Antwerp.

You will design and develop backend components and REST APIs using C# and .NET 8. Working within the existing architecture, you will translate requirements into reliable, maintainable solutions and take ownership of your work from technical design through implementation.

This long-term assignment combines hands-on development with close collaboration. You will contribute to technical decisions, share your expertise and help the team deliver high-quality software.

Your main tasks

  • Take ownership of the technical design and development of backend components.
  • Develop and maintain REST APIs using C# and .NET 8.
  • Implement data access with Entity Framework and work with SQL databases.
  • Apply SOLID principles, Clean Architecture and dependency injection to deliver maintainable code.
  • Investigate technical issues and translate findings into practical solutions.
  • Collaborate with the technical lead and other team members on implementation choices and integration requirements.
  • Contribute to code quality through reviews, unit testing and automated testing practices.
  • Communicate progress, technical decisions and delivery risks clearly.

Before you apply

  • 1Which parts of your CV prove experience with C#, API development, and SQL?
  • 2Which recent work examples would make your application stronger for this role?
  • 3What details from the original source listing should you confirm before applying?

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