Worked on the envoyproxy/envoy repository to deliver a StatName Map Key Performance Optimization aimed at accelerating stat lookups and reducing CPU usage in telemetry-intensive environments. The approach involved inlining key functions, introducing fast-path logic, and implementing branch-free encoding, all while maintaining API compatibility and preserving existing varint encoding. Validation was performed through targeted benchmarking and comprehensive unit testing, demonstrating measurable improvements in stats hot paths without altering external behavior. The work leveraged C++ for both implementation and testing, with a focus on performance optimization and benchmarking to ensure reliability and efficiency in high-throughput, production-grade telemetry workloads.