Tim Kaldewey is the performance architect for the Watson Innovations (R&D) group at IBM. Before joining IBM, Tim worked at Oracle's special projects group as a senior researcher with a focus on high-performance data management. He joined IBM Research in 2010 and moved to his current position in the Watson Group when it was established in 2014. He received his Ph.D. in computer science from the University of California Santa Cruz in 2010. Tim has published over two dozen articles, which include two best paper awards at major conferences. He is also an adjunct faculty at the University of Pennsylvania, where he teaches selected GPU acceleration topics.