Sean Mackrory is a PMC member on Apache Bigtop, a PPMC member on Apache Sentry (incubating), and a software engineer at Cloudera. He’s created and maintained virtual appliances in connection with Apache Bigtop as well with Cloudera, and is currently working on Cloudera Live and the QuickStart VM: virtual environments for training and testing on Hadoop. He has previously spoken at ApacheCon NA 2014, events held by Big Data Utah and the NorCal Big Data User Group, and recently founded the Northern Colorado Big Data Meetup.