Worked on the envoyproxy/envoy repository to enhance the TLS Inspector by improving observability and diagnostics for TLS handshake failures. Focused on the parseClientHello process, the developer implemented debug logging in C++ to capture specific OpenSSL errors when failures occur, aiding in faster troubleshooting. The approach included introducing a new dependency to support advanced logging and instrumenting the filter’s error handling path to surface negotiation failures in logs. These changes were designed to reduce the mean time to resolution for TLS issues while maintaining minimal performance impact, leveraging skills in C++, debugging, logging, and network programming throughout the development process.