Worked on the apache/arrow-rs repository to deliver Arrow-Avro support for Impala-style nullable fields in Avro schemas. Updated the schema parser and decoding logic in Rust to correctly interpret unions such as ['type', 'null'], addressing compatibility with Impala-derived schemas. Developed comprehensive tests to validate the new behavior, including scenarios involving strict mode, thereby reinforcing the robustness of the test suite. Focused on data engineering challenges related to schema parsing and decoding, the work improved correctness for nullable unions and ensured more reliable integration with diverse Avro schemas. Demonstrated proficiency in Rust programming, Apache Arrow, and Avro schema handling.