We are looking for a motivated and autonomous Senior Full-Stack Engineer to join a dynamic engineering team. In this role, you’ll design and develop cloud-native applications, APIs, and middleware solutions using .NET Core, Azure, and React. You’ll collaborate with skilled developers, analysts, and architects, while also taking part in technical design and mentoring junior colleagues.
This role combines deep backend expertise with React frontend development, making it ideal for a seasoned engineer who thrives across the full stack.
What You’ll Do
- Design and develop applications, APIs, and middleware solutions in .NET Core and React on Azure.
- Apply modern engineering patterns: DDD, microservices, CQRS, event-sourcing, SOLID.
- Build and secure cloud-native solutions with Azure services (Service Bus, Functions, App Services, Application Insights, Key Vault, Cosmos DB).
- Implement and test APIs with OAuth 2.0 authentication and Postman.
- Integrate with enterprise platforms such as Microsoft Dynamics 365.
- Contribute to technical design and architecture.
- Mentor junior developers and support knowledge sharing
What are we looking for?
- 10+ years of relevant professional experience in software development in:
- .NET Core 9 / C# 13 or higher
- React (frontend development)
- Azure Services (Service Bus, Application Insights, Key Vault, Cosmos DB, Functions, App Services)
- DDD, microservices, CQRS, event-sourcing, SOLID
- OAuth 2.0 and Postman
- Microsoft Dynamics 365 integration
- Containerization (Docker) and microservices architecture
- Strong problem-solving skills and ability to work autonomously.
- Excellent communication skills in Dutch and English (French is a plus).
- Master’s degree in Computer Science, Engineering, or equivalent.
- Valid .NET / .NET Core certification.
What do we offer?
Location: Brussels area (hybrid setup possible).
Start: 15-10-2025
End: 31-10-2026
Contract: Freelance or Permanent
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