I will fix asp dot net core API bugs and sql server errors

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shakil_deve
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shakil_deve
Shakil H

About this gig

Facing errors in your ASP.NET Core application, API, or SQL Server database?

I will diagnose and fix agreed backend bugs in your existing application using ASP.NET Core, C#, Entity Framework Core, and SQL Server.

I can help with:

  • ASP.NET Core API errors and incorrect responses
  • C# backend bugs and functionality issues
  • SQL Server connection and query problems
  • Entity Framework Core data access errors
  • Existing JWT authentication and authorization bugs
  • Backend API integration issues

What you will receive:

  • Updated source code for the agreed fixes
  • A brief explanation of the changes
  • Relevant testing and results

Scope:

Packages cover agreed bugs in an existing application. New features, new authentication systems, complete API development, and deployment require a separate quote. Revisions cover adjustments to the agreed fixes.

Please message me before ordering with your error details, screenshots, and steps to reproduce the issue so we can confirm the scope, price, and delivery time.

Get to know Shakil H

Shakil H

Full Stack dotNET Developer and ASP dotNET Core Expert

  • FromBangladesh
  • Member sinceMar 2026
  • Languages

    Bengali, English
Hi, I'm Md. Shakil Hossain – Full Stack .NET Developer (ASP.NET Core, C#, Angular). I build scalable web apps & RESTful APIs. ✅ Core Expertise: • Angular & ASP.NET Core full-stack dev • Web API (JWT, EF Core, SQL Server) • Clean Architecture & Repository Pattern 🎓 IsDB-BISEW Certified (ASP.NET) | B.Sc in CSE 💼 Portfolio Highlights: • SmartPOS (POS & Inventory System) • Enterprise Employee & HRM System • Gym Management System • Real-time WebSocket Chat App 🌟 Why me? ✓ Clean code ✓ On-time delivery ✓ Support 💬 Message me to discuss your project!

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