Tathagata Das is a Staff Software engineer at Databricks, and a member of Apache Spark Project Management Committee. He has been involved with the Apache Spark for the last 11 years. He developed the original Spark Streaming (DStreams) in his grad student days in AMPLab, UC Berkeley. He was one of the core developers of Structured Streaming, and one of the core developers of the Delta Lake product. He currently leads the development of Delta Lake open source project and the ecosystem around it.