Mark is a software engineer working on Apache Spark at Cloudera. He is a co-author of Hadoop Application Architectures book and also wrote a section in Programming Hive book.
Mark is also a committer on Apache Bigtop and a committer and PMC member on Apache Sentry. He has contributed to a number of open source projects including Apache Hadoop, Apache Hive, Apache Sqoop and Apache Flume projects.
Mark is sought after speaker on topics related to Big Data at various national and international conferences. He occasionally blogs on topics related to technology on his blog.