Dotnet RESTful API Framework Development

I need an experienced API developer to create a customizable API framework on my AWS-hosted Windows Server with SQL Server.

Requirements include:
- Built with Dotnet or Node.js
- Support for further creating RESTful APIs

- API Must include:
- Authentication and authorization
- Data validation
- Error handling

Ideal Skills and Experience:
- Proficiency in Dotnet or Node.js and RESTful APIs
- Strong background in API security and data validation
- Experience with AWS and SQL Server

Looking for a developer who can deliver a robust and scalable API framework.