Worked on optimizing metadata handling in the google/libphonenumber repository, focusing on improving the efficiency of PhoneMetadata storage and retrieval. Addressed performance bottlenecks by eliminating unnecessary copies of PhoneMetadata and moving it directly into the hashmap, which reduced memory usage and improved lookup speed. This approach leveraged advanced C++ features such as move semantics and efficient data structures, resulting in lower garbage collection pressure and better scalability for metadata-driven parsing in high-traffic environments. The work demonstrated strong skills in C++ development, memory optimization, and performance profiling, with disciplined code review practices ensuring robust and maintainable improvements to the codebase.