During July 2025, Pulkomandy developed a feature for the mathworks/arrow repository that enhanced Parquet stream writer functionality in C++. The work focused on enabling storage of arbitrary binary data by relaxing the UTF-8 constraint for BYTE_ARRAY types, addressing the need for more flexible data ingestion and reduced encoding overhead. Pulkomandy introduced a RawDataView output operator and adjusted type checking to support non-textual binary payloads, allowing seamless handling of diverse data formats. This contribution demonstrated a strong grasp of C++ development, data serialization, and Parquet internals, delivering a targeted solution that improved the adaptability of data pipelines without introducing bugs.