C# API Expert Needed

I'm looking for a seasoned software developer with a strong background in C# to construct a robust API for my upcoming project. The successful candidate will be responsible for the following:

- Implementing data retrieval and manipulation functionalities.
- Developing a secure authentication and authorization system.
- Ensuring the API supports real-time updates and is fully scalable.
- Building a reliable error handling mechanism to maintain system integrity.

**Skills Required:**

- Proficiency in C# programming
- Extensive knowledge of .NET Core and ASP.NET frameworks
- Experience with APIs that allow for real-time updates
- Strong understanding of system scalability
- Capability to implement robust error handling

**Experience:**

- A portfolio with similar API development projects
- Proven track record with authentication and authorization services

I'm eager to work with a developer who demonstrates a firm grasp of modern API features, best practices, and can contribute to the project's success. If you can fulfill this role, I invite you to bid on this project and help bring my vision to life.