During May 2025, Bai upgraded the Iceberg library to version 1.9.0 within the StarRocks/starrocks repository, focusing on enhancing performance and robustness for large-scale data workloads. Bai introduced asynchronous S3 client support using the AWS SDK, which improved throughput and reliability for Iceberg table operations. The work also included optimizing delete-file indexing and processing, as well as refining partition specification handling to strengthen data management and reduce operational risk. Leveraging full stack development skills and Java, Bai’s contributions enabled internal refactoring and scalability improvements, addressing the needs of high-volume data environments and supporting more efficient, reliable data processing pipelines.