Holden
Karau

Holden is a transgender Canadian open source developer with a focus on Apache Spark and related "big data" tools. She is the co-author of Learning Spark (1st ed), High Performance Spark, and Scaling Python with Ray. She is a committer and PMC on Apache Spark. She was tricked into the world of big data while trying to improve search and recommendation systems and has long since forgotten her original goal. You can find her streaming some of her open-source work on YouTube and Twitch in her "spare" time.