I will build a clean aspnet core rest API

Need a solid, maintainable backend API built by someone who follows real software engineering principles not just someone who gets it to "work"?

I build ASP.NET Core APIs using Clean Architecture, CQRS with MediatR, Entity Framework Core, and FluentValidation. Every line is production-ready: async throughout, proper error handling, JWT authentication, and Swagger docs out of the box.

What I deliver:

- RESTful API following RFC 7807 Problem Details for errors

- Clean Architecture (Domain / Application / Infrastructure / API layers)

- EF Core with SQL Server or PostgreSQL, proper migrations

- JWT or Azure AD authentication

- FluentValidation pipeline for all requests

- Swagger/OpenAPI documentation

- Docker-ready configuration

Common projects:

- CRUD APIs for web or mobile frontends

- Multi-tenant SaaS backends

- .NET Framework .NET 8/9 migration

- Existing API refactoring and code quality improvement

- Integration with third-party APIs (payment, email, maps, etc.)

All code follows Microsoft conventions. No magic strings, no God classes, no async anti-patterns.