John has been chief executive officer at Castlight since April 2017. During 2016, John served as president and chief operating officer of Castlight after joining the company in 2012 as its chief financial officer. Prior to Castlight, John spent more than 20 years primarily in the biotechnology industry where he had most recently been the chief operating officer at Achaogen, a publicly-held firm focused on the development of life-saving antibiotics. John holds an MBA from the University of California, Berkeley, and received his undergraduate degree from California Polytechnic State University, San Luis Obispo. He serves on the Achaogen board of directors and is a member of the 2012 Class of Henry Crown Fellows at the Aspen Institute.