Reynold Xin is a co-founder and Chief Architect at Databricks, where he oversees the company's Spark development. He was the release manager for Spark's 2.0 release, and the driver behind most of the major recent changes in Spark, e.g. DataFrame API, Project Tungsten. Prior to Databricks, he was pursuing PhD research at the UC Berkeley AMPLab, where he worked on large-scale data processing.