I will build or fix rest apis using aspnet core

M
marceloprr
M
marceloprr
Marcelo PRR
build or fix rest apis using aspnet core
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build or fix rest apis using aspnet core

About this gig

I will build, fix, or improve REST APIs using C# and ASP.NET Core.

I can help you create clean backend endpoints, fix existing API issues, connect APIs to databases, improve API structure, and troubleshoot errors.

I can help with:

  • Creating REST API endpoints
  • Fixing API errors
  • Connecting APIs to SQL Server or other databases
  • Improving backend logic
  • Refactoring existing API code
  • Authentication-related adjustments
  • API performance troubleshooting

Please contact me before placing an order so I can understand your project and confirm the scope.

  • Programming language

    • C#

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Design
    • Databases

  • Frontend framework

    • AngularJS
    • Next.js
    • React.js

  • Backend framework

    • ASP.NET Core

  • AI & low/no code builders

    • Firebase Studio
    • Cursor

Get to know Marcelo PRR

Marcelo PRR

Software Developer AND Database Optimization

  • FromBrazil
  • Member sinceNov 2024

  • Languages

    English, Portuguese
I am a Senior Software Engineer specialized in C#, .NET, SQL Server, REST APIs, bug fixing, and backend performance improvements. I have 20+ years of experience building, maintaining, and troubleshooting business-critical systems, mainly in the financial industry. I can help with production bugs, slow SQL queries, API issues, legacy .NET code, refactoring, and system stability improvements. My focus is simple: understand the problem, fix it with clean code, and deliver a reliable solution.

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