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Fiverr Pro
Nederlands
$
USD
Zihao X.
@zihao_xu
Crypto Quant Backtesting and Trading Bots Mandarin Chinese Support
China
Engels, Chinees
Over mij
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.
Skills
Zihao X.
offline •
Gemiddelde reactietijd: 2 uur
Bekijk mijn diensten
Development van trading bots
I will build and backtest a crypto quantitative trading bot
Vertaling
I will translate between english and chinese with native mandarin fluency
Portfolio
Werkervaring
Quantitative Strategy Developer
Self-Employed / Freelancer • ZZP
Jan 2025 - Present • 1 yr 8 mos
Researched, backtested and deployed an automated quantitative trading system for Polymarket ETH 15-minute up/down prediction markets. Built the research pipeline on 164,480 fifteen-minute candles from 2022 to 2026 using a Donchian(20) range-fade signal with a rolling 180-day percentile filter and no look-ahead. Backtested 9,361 trades with a 58.3% win rate, +0.1099U expectancy per trade, and 23.5U maximum drawdown, including yearly stability and walk-forward checks. Engineered the live bot with a Node.js signal engine and Rust order executor connected to Polymarket CLOB V2, including order handling, fill reconciliation and daily reports. Implemented fractional-Kelly sizing, hard position caps, a 20% peak-drawdown circuit breaker, health monitoring and alerts.
