Worked on the google/perfetto repository to enhance reliability and safety in trace processing components using C++. Focused on robust error handling in ArtMethodTokenizer by replacing crash primitives with standardized error propagation, preventing crashes when encountering illegal versions and improving diagnostics. Addressed stability in the Trace Processor by implementing safe buffer boundary calculations, using difference-based length computation to avoid pointer arithmetic overflows. These changes reduced crash reports, improved runtime stability, and supported maintainability for large trace analysis. Applied skills in bug fixing, error handling, and performance optimization, emphasizing defensive programming and trace processing to deliver safer, more robust code paths.