Worked on modernizing the Protobuf API usage within the PX4/PX4-Autopilot repository, focusing on the simulation bridge component. Addressed a deprecated pattern by replacing the use of Resize() with Clear(), Reserve(), and Add() methods in the gz_bridge module, ensuring compatibility with current Protobuf standards. This C++ refactor improved code efficiency and maintainability, reducing the risk of future breakages as the Protobuf library evolves. The work demonstrated strong software maintenance practices, with changes that were well-documented and localized for easier review. Skills applied included API integration and C++ development, contributing to a more robust and future-proof simulation infrastructure.