David is Vice President of ADMET Cheminformatics in the Lancaster Division of Simulations Plus. He previously worked at Sage Informatics, a small cheminformatics software startup he founded in 2001 and that Simulations Plus acquired in 2005, as well as at Bioreason and CombiChem. He received his Ph.D. in Biophysics from the University of California at San Francisco. David is one of the lead software engineers for the ADMET Predictor software platform, where his primary responsibilities are the core chemistry engine and graphical user interface. He makes numerous presentations on ADMET Predictor at customer sites in the United States and abroad.