.NET Core & Angular Web App Development

I'm seeking an experienced developer to build or enhance a web application using .NET Core (C#) for the backend and Angular for the frontend.

Key Requirements:
- Design and implement RESTful APIs for user management
- Develop a responsive Angular frontend with clean UI/UX
- Seamlessly integrate frontend and backend for smooth user experience
- Implement JWT-based authentication and authorization
- Use Entity Framework Core with PostgreSQL for database operations

Ideal Skills:
- Proficiency in .NET Core, C#, and Angular
- Strong experience in RESTful API development
- Solid understanding of JWT, authentication, and authorization
- Expertise in Entity Framework Core and PostgreSQL
- UI/UX design skills for responsive web applications

Please provide examples of similar work and an estimated timeline.