Served as a core developer at Ricequant and Mina Asset Management, played a pivotal role in several key projects, overseeing the entire lifecycle from planning to implementation. These projects have been successfully deployed and are consistently used in enterprise environments by financial institutions. Also took part in product design and project management, ensuring the successful execution and delivery of high-quality software solutions:1. Served as the project lead for RQAlpha, a leading and widely recognized open-source quantitative strategy engine in mainland China. RQAlpha supports backtesting and live trading of multi-asset and multi-frequency strategies. 2. Worked as a developer for the RQPro live quantitative trading terminal, undertaking developing multiple subsystems including the trading gateway, strategy engine, portfolio management, and feeds distribution. 3. Led the development of the research toolkit and trading system for Mina Asset Management. The trading system interfaced with upstream systems to receive factor scores, performed various operations including portfolio optimization, and generated order instructions. It also implemented a TWAP algorithm engine with basic forecasting capabilities. The research toolkit included factor analysis tools and Level2 high-frequency data services. 4. Served as the engineering lead for the RQAMS project, being in charge of the architecture design and backend development. RQAMS is a post-investment portfolio valuation and risk management system that supports real-time portfolio valuation, risk alerts, position analysis, trade analysis, and performance attribution.