Aaron has built multiple, large-scale, big data systems that are used by the intelligence, defense, finance and healthcare industries. He has a passion for delivering products that are transformative, based on close customer collaboration and iterative development.Aaron spent five years as a researcher for the National Security Agency (NSA) where he developed and deployed into operations dozens of advanced analytical techniques. He is also the founder of Apache Accumulo, a scalable and secure data store on top of Apache Hadoop and the author of the O’Reilly book, Accumulo: Application Development, Table Design, and Best Practices.Aaron holds a Bachelor of Science degree in Computer Science from the University of Maryland College Park.