Worked on stabilizing Arrow serialization within the mathworks/arrow repository, focusing on the Parquet integration in C++. Addressed a critical bug by introducing an early guard in the WriteArrowSerialize function to handle all-null arrays, preventing heap-buffer-overflow errors during data serialization. This solution improved the reliability of production data pipelines without introducing user-facing changes. Developed comprehensive regression tests to ensure the stability of the serialization path, demonstrating a disciplined approach to unit testing and error handling. The work showcased proficiency in C++ development, data serialization, and robust test-driven practices, resulting in enhanced code coverage and reduced runtime crash risk.