William W.

I'm an active trader and software engineer who builds quantitative trading systems from the ground up. I develop custom backtesting frameworks, screening tools, and automated trading pipelines in Python to support systematic strategies in US equities, with a focus on clean entry/exit logic, position sizing, and managing drawdown. As someone who actively trades using my own systems, I know the difference between a backtest that looks good on paper and one that holds up in live markets. I regularly work with trading APIs, data sources, and AI tools, including LLMs, MCP integrations, and multi-model setups, to streamline financial analysis and figure out what actually adds edge in a real trading workflow. My work covers the full development process: building reliable data pipelines, implementing and testing rule-based strategies against real performance metrics, and creating tools for every stage of trading, from market screening and signal generation to portfolio backtesting with proper risk metrics.