I will debug and fix bugs in your backend or web app code

Stuck on a bug that eats your time? Whatever the stack, I find the root cause and fix it fast: a crash, a wrong result, a slow query or an API that behaves differently in production.

I can help with:

• Any backend or web stack: Node.js, Python, Java, PHP, C# / .NET, React and more
• Crashes, exceptions, wrong results and flaky behavior in production
• REST API, authentication and integration errors
• Performance problems: slow endpoints, memory leaks, N+1 queries
• Code review and cleanup after the fix

How it works:

• You send the error, steps to reproduce and repo access (or a code snippet)
• I reproduce the issue and find the root cause
• I fix it, explain what went wrong and how to avoid it

No fix, no problem: if I cannot reproduce or solve the issue, tell me and we will sort it out. Message me before ordering with a short description and I will confirm the best package.