I help fix, debug, and maintain existing .NET applications, APIs, SQL Server workflows, and internal business systems.

This service is ideal if your application has bugs, API errors, slow queries, broken business logic, validation issues, authentication problems, or small backend/frontend issues that need a focused technical review and correction.

What I can help with:

Fix bugs in .NET / ASP.NET Core / ASP.NET MVC applications

Debug API errors, exceptions, 400/401/403/500 issues

Review and improve C# backend logic

Fix SQL Server queries, data issues, or stored procedure problems

Improve validation, error handling, and maintainability

Review authentication, roles, JWT, or permission issues

Apply small improvements to existing admin panels or internal tools

Provide clear notes about what was fixed and why

Best fit for scoped issues, small fixes, technical maintenance, and business systems that need stability without starting a full rebuild.

Not included by default:

Full system rebuilds

Large migrations

Production deployment without prior agreement

Emergency work without scope review

Unlimited changes or unrelated new features

Before starting, I confirm the issue, expected behavior, access requirements, environment, timeline, and acceptance criteria.