Aaron is CSO of the Pharma Vertical at Twist Bioscience. Prior to Twist, he served as Chief Scientific Officer of LakePharma, leading the California Antibody Center, which discovers novel antibody therapeutics for its clients. He also oversaw all discovery research functions both as Vice President of Protein Sciences at Surrozen, and previously, as Vice President of Research at Sutro Biopharma, Inc. He also held director level positions at both Oncomed and Dyax Corp.