Worked on performance and reliability improvements across facebook/CacheLib and facebook/fbthrift repositories using C++ and backend development expertise. Delivered a targeted API refactor in CacheLib by updating the getPoolId API to use string_view, which eliminated unnecessary string copies and reduced memory allocations on a critical code path, all while maintaining full API compatibility. In fbthrift, addressed operational efficiency by implementing a fix to suppress repetitive log entries for dropped connections, reducing log clutter without impacting connection handling or diagnostic capabilities. Demonstrated a focus on performance optimization, API design, and maintainable code changes with clear commit history and minimal risk.