Huyibin worked across the Shopify/tidb and pingcap/tiflash repositories to enhance database observability and reliability, focusing on execution diagnostics and performance analysis. He improved runtime statistics by adding detailed TiFlash wait times and refined execution summaries to better capture pipeline and join operator metrics, using C++ and Go for backend development and code refactoring. Huyibin addressed stability issues by introducing defensive checks in subquery handling and slow query log parsing, reducing panics and improving test coverage. His work deepened insight into query performance and enabled faster debugging, demonstrating strong skills in distributed systems, query optimization, and system monitoring.