I will debug your python code or review your codebase for bugs and quality

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boxiangzhao245
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boxiangzhao245
Boxiang Z

About this gig

Stuck on a bug that won't die? Or got an inherited codebase you need to audit before scaling?


Bug fix tier:

Send me the error message, the failing code, what you tried, and what you expected. I find the root cause (not just suppress the symptom), fix it, and explain WHY it broke so it doesn't bite you again.


Code review tier:

I go through your repo and give you a prioritised report by file:line - what's actively broken, what's dangerous, what's just stylistically off. No 'your code is fine' fluff - I tell you what's wrong, ranked by blast radius.


What I look for:

  • Silent failures (try/except swallowing real errors)
  • - Race conditions, missing locks, async/await misuse
  • - SQL injection / XSS / auth holes (OWASP basics)
  • - Dead code, duplicated logic, premature abstractions
  • - Production-killers: unbounded retries, missing timeouts, memory leaks
  • - Type bugs Pyright/mypy/tsc would catch

What I won't do:

  • Code reviews that are 90% style nitpicks - those are noise
  • - Pretend tests pass when they don't

Send me the code + the question first.

Get to know Boxiang Z

Boxiang Z

Python Developer for Claude AI Integration and Automation

  • FromChina
  • Member sinceOct 2020
  • Languages

    English
Python engineer with 10+ years backend experience and daily Claude API use since 2024. I help clients integrate Claude AI, build automation pipelines, and ship production-ready Python services. What I do: - Claude API: SDK, streaming, tool use, MCP, prompt engineering - Automation: n8n, Google Sheets API, Gmail API, Discord webhooks - Web scraping with httpx, Playwright, Selenium - FastAPI backend services How I work: async-only via Fiverr chat, no calls. Fixed-price preferred. Code that runs first time + one free tweak round within 14 days. Bilingual EN/ZH. Ready when your order funds.

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