Worked on security and diagnostics enhancements across the amp-hal-st and amp-embedded-infra-lib repositories, focusing on embedded systems using C++ and Bluetooth Low Energy. Developed secure Bluetooth pairing with passkey authentication and numeric comparison, improving device pairing safety and user experience by refining IO capability handling and removing legacy code paths. In amp-embedded-infra-lib, addressed ambiguous Console method calls by introducing clearer error messaging and refactoring method matching logic for greater efficiency. Emphasized modern C++ practices to optimize performance, reduce diagnostic noise, and streamline method dispatch, resulting in improved maintainability and reliability for both device communication and developer workflows.