Hi there!
I've read you requirements. It seems you are looking for a ASP.NET Core developer who can help you build a web application with Clean Archietecture. I believe I can definitely help you out.
I am a full stack .NET developer. I am well versed in developing web solutions in ASP.NET Core, MVC, Web API, Angular 6+, Azure, TypeScript, SQL Server, Entity Framework, EF Core and Dapper.
I've worked with CSV imports on many levels. I've imported millions of records, validated data and inserted them into database and performed various operations, all in minimum time and with clean code practices.
Please share more details so we can discuss further.
If any of this sounds interesting, please reply to this and we can arrange to discuss your requirements in detail.
Best regards,
Divyansh Bhatia