I will fix update or optimize your asp net core web API

M
marioagp20
M
marioagp20
Mario A. Garcia
fix update or optimize your asp net core web API
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fix update or optimize your asp net core web API

About this gig

Need a fast, reliable solution for your ASP.NET Core Web API?

I am a backend software developer specializing in C# and .NET Core. I help business owners, agencies, and developers fix bugs, build new REST API endpoints, and optimize backend workflows quickly.

Services I offer in this Gig:

  • Debugging and fixing broken ASP.NET Core REST API endpoints
  • Updating DTOs, request validation, and JSON response formats
  • Creating new API controllers and endpoints with Entity Framework Core or Dapper
  • Integrating third-party REST Web APIs
  • Optimizing backend performance and handling HTTP status codes / middleware

Why choose me?

  • Clean Code: Standard C# / .NET conventions and clean architecture
  • Clear Communication: Fast updates and transparent feedback
  • Turnaround Time: Delivery designed to fit tight timelines

Please send me a message with your project scope before placing an order to ensure we choose the right package!

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Get to know Mario A. Garcia

Mario A. Garcia

NET Core Backend Specialist

  • FromVenezuela
  • Member sinceOct 2026

  • Languages

    Spanish, English
Hi, I’m Mario, a backend software developer specializing in C#, ASP.NET Core Web APIs, SQL Server, and EF Core / Dapper. I build, fix, and optimize reliable API endpoints, stored procedures, and database queries for web applications. Whether you need a quick bug fix, performance optimization, or new RESTful endpoints created, I focus on delivering clean, scalable, and production-ready solutions with fast turnaround times. Let’s connect and get your project resolved!

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