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Fiverr Pro
English
$
USD
I will debug and fix your python javascript or rust code
Zihao X.
About this gig
I debug and fix code with a methodical approach, and I am fully confident in my ability to solve difficult problems. You can review my GitHub repositories on request to verify my coding and engineering skills.
I work with Python, JavaScript and Rust. I can investigate runtime errors, broken APIs, data problems, performance issues and unclear logic. My focus is finding the root cause rather than applying a temporary patch.
What you get:
- Clear investigation of the cause
- A focused fix with minimal unnecessary changes
- Test or verification steps
- Explanation of what was wrong and what changed
- Setup notes and documentation when needed
Send the code or repository, error logs, reproduction steps and expected behavior. I will confirm the scope and recommend the best package.
Get to know Zihao X.
Zihao X.
Crypto Quant Backtesting and Trading Bots Mandarin Chinese Support
- FromChina
- Member sinceSep 2026
- Avg. response time1 hour
Languages
Chinese, English
I research, backtest, and build quantitative trading systems. I design and test trading rules, validate performance, and turn strategies into working bots. My recent Polymarket ETH range-fade project used 164,480 Binance 15-minute candles from 2022 to 2026 and produced 9,361 backtested trades with risk controls and stability checks. I also work with live market data, APIs, signal engines, and order execution. My tools include Python, JavaScript, Rust, quantitative finance, and data analysis. Native Mandarin speaker; Chinese-English translation, localization, transcription, customer support.
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Other Software Development Services I Offer
FAQ
Can you work with a private repository?
Yes. You can grant access through the platform you use, or send a sanitized snippet that reproduces the issue.
What do you need to start?
Please send the error message, reproduction steps, expected behavior, runtime version and the relevant code or repository.
Will you explain the root cause?
Yes. I explain what caused the issue, what I changed and what verification was performed.
Can you add tests for the fix?
Yes. I add focused tests or verification steps when practical so the issue is less likely to return.
