I will fix asp net core c sharp and rest API bugs

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Maksym B
fix asp net core c sharp and rest API bugs
fix asp net core c sharp and rest API bugs
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fix asp net core c sharp and rest API bugsfix asp net core c sharp and rest API bugsfix asp net core c sharp and rest API bugsfix asp net core c sharp and rest API bugs

About this gig

Are you having issues with your ASP.NET Core, C# or REST API application?

I will investigate and fix backend bugs, API errors, database issues and authentication problems in your .NET project.

I can help with:

  • ASP.NET Core and C# bugs
  • REST API errors and broken endpoints
  • Entity Framework Core and DbContext issues
  • PostgreSQL and SQLite problems
  • Authentication and authorization
  • Dependency Injection and middleware errors
  • Routing, validation and configuration issues
  • Database migrations
  • Performance-related backend issues
  • Small backend fixes and improvements

I work with C#, .NET 8, ASP.NET Core, Entity Framework Core, PostgreSQL, SQLite, REST APIs, Docker and Git.

You will receive a clear explanation of the issue and a clean, maintainable fix.

Please message me before ordering if your issue is complex or you are unsure which package fits your project.

  • Programming language

    • ASP.NET

  • Expertise

    • Debugging

  • Backend framework

    • Other

Get to know Maksym B

Maksym B

Maksym B

  • FromUkraine
  • Member sinceApr 2026
  • Avg. response time2 hours

  • Languages

    Ukrainian, English
I’m a .NET Backend Developer and Software Engineering student focused on building reliable web applications, REST APIs, and database-driven systems. I work with C#, .NET 8, ASP.NET Core, Entity Framework Core, PostgreSQL, SQL, Docker, Git, and GitHub Actions. I can help with backend development, REST API development, database integration, authentication and authorization, API integrations, bug fixing, and new feature development. I focus on clean, maintainable solutions and clear communication throughout the project.

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