Worked on reliability and safety hardening for the EVerest/libocpp repository, focusing on the OCPP library. Addressed a critical bug by implementing exhaustive switch statement enforcement using C++ to ensure compile-time safety. This approach introduced compile-time errors for any missing switch cases, effectively preventing potential runtime failures and reducing debugging effort. The targeted changes improved the maintainability and reliability of the codebase, aligning with safety-critical coding practices common in embedded systems and protocol implementation. By emphasizing compile-time validation, the work reduced production risk and contributed to a more robust library, demonstrating disciplined software engineering within a safety-focused development environment.