I will fix dotnet core API bugs, backend issues and sql errors

D
danushkadiss748
D
danushkadiss748
Danushka M

About this gig

Backend issues can affect the stability and security of your application. Whether you're dealing with API errors, database problems, authentication failures, or unexpected exceptions, I'll help identify the root cause and implement a reliable fix.


I can help with


  • ASP.NET Core Web API debugging
  • C# backend issues
  • Entity Framework Core (EF Core)
  • SQL Server queries and stored procedures
  • JWT Authentication & Authorization
  • ASP.NET Core Identity
  • REST API development and debugging
  • Swagger/OpenAPI issues
  • LINQ queries
  • API performance improvements


I aim to deliver clean, maintainable solutions rather than quick patches.


Please contact me before ordering so we can discuss your project requirements and choose the appropriate package.

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Get to know Danushka M

Danushka M

Full Stack Developer

  • FromSri Lanka
  • Member sinceSep 2025
  • Avg. response time1 hour
  • Languages

    English
I am a Full-Stack Developer specializing in ASP.NET Core backend systems, Web APIs, and CI/CD automation. I have experience building ERP systems, real-time applications using SignalR, and deploying enterprise applications using GitHub Actions.