Graha Follow 
Adrian Cockcroft adrianco
Technology and strategy advisor, investor, board member. Ex Amazon, Netflix, Battery Ventures, eBay, Sun, CCL
Retired Salinas, CA
Holden Karau holdenk
Holden Karau is trans Canadian, and open source contributor. She is a Spark committer co-author of Learning Spark, High Performance Spark and Kubeflow for ML.
Open Source Big Data Dev San Francisco, CA, USA