Xinli Shang is a manager on the Uber Big Data Infra team, Apache Parquet PMC Chair, Presto committer, and Uber Open Source Committee member. He is leading the Apache Parquet community and contributing to several other communities like Presto and Alluxio. He is also leading several initiatives on data format for storage efficiency, security, and performance. He is also passionate about tuning large-scale services for performance, throughput, and reliability.