Douglas B. Kothe (Doug) has over three decades of experience in conducting and leading applied R&D in computational applications designed to simulate complex physical phenomena in the energy, defense, and manufacturing sectors. Doug is currently the Director of the Exascale Computing Project. Prior to that, he was Deputy Associate Laboratory Director of the Computing and Computational Sciences Directorate at Oak Ridge National Laboratory (ORNL). Other prior positions for Doug at ORNL, include Director of the Consortium for Advanced Simulation of Light Water Reactors (2010-2015), and Director of Science at the National Center for Computational Sciences (2006-2010). Before joining ORNL, Doug spent 20 years at Los Alamos National Laboratory, where he held a number of technical line and program management positions, with a common theme being the development and application of modeling and simulation technologies targeting multi-physics phenomena characterized in part by the presence of compressible or incompressible interfacial fluid flow.