I will fix bugs in your python, javascript, php or sql code fast


Informazioni su questo servizio
The bugs that cost most don't crash. They quietly return a wrong number.
A worked example from my portfolio: a revenue report was short by £17,223.95
because pandas silently drops rows with a blank grouping key. 14 orders vanished
from every total, nothing errored, and it looked fine.
I debug Python, JavaScript/TypeScript, PHP, SQL and Bash. Most come back the same
day with the fix, and a test that fails on your old code and passes on the new,
so you can see it's gone, not take my word.
What you get:
- The actual fix, not a workaround
- An explanation of what was broken and why, so it doesn't come back
- A check for the same mistake elsewhere in the file
- Clean, commented code matching the style already in your project
What I need from you:
- The code (repo, zip, or pasted snippet)
- The exact error message or the wrong behaviour you're seeing
- How to reproduce it
Works with: Django, Flask, FastAPI, pandas/numpy, Node, Express, React, Vue,
Laravel, WordPress plugins, Selenium/Playwright, MySQL, PostgreSQL, SQLite.
Not sure if your bug fits? Message me with the error I'll tell you
honestly whether I can fix it and what it costs before you order.
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Freelance developer
- DaPolonia
- Membro daago 2026
Lingue
Polacco, Inglese
Il mio portfolio
Altri servizi della categoria Sviluppo di software offerti da me
FAQ
What if you can't fix it?
Full refund, no argument. And I'll tell you within a few hours if it's out of scope rather than sitting on it until the deadline.
Is my code confidential?
Yes. I don't reuse, publish or share client code.
Can you work directly in my repo?
Yes — add me as a collaborator. Or send a zip if you'd rather not give access.
What counts as one bug?
One reproducible failure. If fixing it reveals a second unrelated one, I'll tell you the price before doing anything — you'll never get a surprise charge.

