About the Authors

Vivek Bharathan is the Cofounder and Principal Software Engineer at Ahana. Previously, Vivek was a Software Engineer at Uber where he managed Presto clusters with more than 2,500 nodes, processing 35PB of data per day, and worked on extending Presto to support Uber’s interactive analytics needs. Prior to Uber, Vivek was an early member of the query-optimizer team at Vertica Systems and made several contributions to the core database engine and the Vertica ecosystem. Earlier in his career at the Laboratory for Artificial Intelligence Research, he developed emerging technologies in decision-support systems and reasoning systems. His Presto contributions include the pushdown of partial aggregations. Vivek holds a M.S. in Computer Science and Engineering from The Ohio State University.

David E. Simmen is Cofounder and CTO of Ahana, overseeing Ahana’s technology strategy and driving product innovation. David joined Ahana most recently from Apple where he engineered iCloud database services. Prior to Apple, he was Chief Architect with Splunk and named the first Fellow in the company’s history. Prior to Splunk, David was Engineering Fellow and CTO of Teradata Aster. Earlier in his career, David was a Senior Technical Staff Member (STSM) at IBM Research. David is also a named inventor on 37 U.S. patents and has 15 publications to his name.

George Wang is Cofounder and Principal Engineer of Ahana. Previously, as a Senior Software Engineer, George built numerous key features and innovations to support a high throughput and low-latency compute engine for AnalyticDB, a Presto-based cloud service at Alibaba. He was a member of the Presto Foundation Outreach Committee while at Alibaba. Prior to that, George was a Staff Software Engineer at IBM for over 10 years where he developed multiple features and enhancements on DB2 for z/OS. George holds a M.S. in Software Engineering from San Jose State University and B.S in Computer Science and E.E. from UCLA.