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# Expert Full-Stack Developer / Technical Lead Job ID: JP055097

- **Company:** ITProposal
- **Location:** Brussel, Belgium
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Application Performance Management, User Authentication, Unit Testing, Microsoft Azure, C Sharp (Programming Language), Code Review, Computer Networks, Software Design Patterns, DevOps, Microsoft SQL Server, OAuth, OpenID, Open Web Application Security, Swagger, JSON Web Token, Server Administration, Systems Integration, Openapi, .NET Core, Blazor, Asp.net Web Api, Software Troubleshooting, Git, Integration Tests, Restful APIs
- **Published:** August 20, 2026
- **Apply:** https://www.adzuna.be/details/5849346311

## About the Role

* Expert-level experience with .NET Development and ASP.NET Web API.
 * Strong C# / .NET Core development experience.
 * Strong knowledge of authentication/authorization.
 * Experience with Blazor, Azure Bus, Microsoft Azure and SQL Server.
 * Good understanding of networking concepts and DevOps/server management.
 * Experience with REST, Swagger/OpenAPI and secure application development.
 * Knowledge of unit and integration testing.
 * Strong leadership, communication and problem-solving skills.

Languages

 * Dutch: Active knowledge
 * French: Active knowledge
 * English: Active knowledge

## Description

* Lead and guide developers on technical design and implementation.
 * Develop and maintain applications using C# / .NET, ASP.NET Web API and Blazor.
 * Design scalable, reliable and maintainable solutions.
 * Develop REST APIs and integrations using Swagger/OpenAPI and Azure Bus.
 * Implement secure authentication and authorization using JWT, OIDC and claims.
 * Perform code reviews, unit testing and integration testing.
 * Troubleshoot complex technical issues and optimise application performance.
 * Work with Microsoft Azure, DevOps and Git environments.
 * Apply security best practices, including OWASP/OAuth/OpenID.
 * Collaborate with architects, analysts and infrastructure teams.
 * Prepare technical documentation and support deployment activities.
 * Mentor developers and promote development best practices and design patterns.


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