Vishwas brings more than 23 years of executive experience in addition to extensive drug discovery and research experience. He most recently served as Chief Scientific Officer of Karos Pharmaceuticals where he was hired as the first employee and served as the CSO until its acquisition in August of 2017. Prior to joining Karos, Vishwas was a Senior Director at Pfizer, which he joined in 1995 and left to join Karos in June of 2010. Before that, he was a Visiting Research Fellow at the National Institutes of Health in Bethesda, MD.