Mark is a committer on Apache Bigtop and a committer and PMC member on Apache Sentry (incubating) and a contributor to Apache Hadoop, Apache Hive, Apache Sqoop and Apache Flume projects. He is also a section author of O'Reilly's book on Apache Hive - Programming Hive. Ted is a Senior Solutions Architect at Cloudera helping clients be successful with Hadoop and the Hadoop ecosystem. Previously, he was a Lead Architect at the Financial Industry Regulatory Authority (FINRA), helping build out a number of solutions from web applications and Service Oriented Architectures to big data applicatons. He has also contributed code to Apache Flume, Apache Avro, Yarn, and Apache Pig. Jonathan is a Solutions Architect at Cloudera working with partners to integrate their solutions with Cloudera's software stack. Previously, he was a technical lead on the big data team at Orbitz Worldwide, helping to manage the Hadoop clusters for one of the most heavily trafficked sites on the internet. He's also a co--founder of the Chicago Hadoop User Group and Chicago Big Data, technical editor for Hadoop in Practice, and has spoken at a number of industry conferences on Hadoop and big data. Gwen is a Solutions Architect at Cloudera. She has 15 years of experience working with customers to design scalable data architectures. Formerly a senior consultant at Pythian,Oracle ACE Director and board member at NoCOUG. Gwen is a frequent speaker at industry conferences and maintains a popular blog.