Worked on the google/android-cuttlefish repository to address a critical correctness issue in the implicit polling path of the embedded system. Focused on improving sender tracking accuracy by correcting how the Sender ID is adjusted after a poll operation, this change enhanced the reliability of the polling subsystem and reduced edge-case failures. The solution involved targeted debugging and a precise code update in C++, demonstrating strong skills in bug fixing and embedded systems. By refining the polling logic, the developer ensured more accurate sender state management and minimized unnecessary poll retries, contributing to more robust and maintainable system behavior overall.