Jesse Darden

Founder, Chairman, CEO

Jesse is responsible for setting the overall direction and product strategy for the company. He leads the design of The Perfect 46’s service and development of its core technology and infrastructure. Jesse studied Computer Science & Molecular Biology at Harvard University before moving the company to Palo Alto, California.

He has published more than a dozen academic papers, including Extracting Patterns and Relations from the Human Genome and Genome Data Mining, which he published with Ronald Khan.

Steve Heisman

Chief Operating Officer

Before joining The Perfect 46, Steve served on the research staff at Xerox Palo Alto Research Center (PARC) and Bell Laboratories. He holds a bachelor’s degree in Electrical Engineering from Princeton University as well as a master’s degree in Computer Science from the University of California, Berkeley.

Leslie Maher

Chief Financial Officer

Leslie leads the finance, facilities and information technology teams. She reports directly to the CEO. Prior to joining The Perfect 46, Leslie worked at Genentech Inc., a leading biotechnology company. Leslie holds a bachelor’s in Economics and International Relations from Brown University.

Ronald Khan

Senior VP of Genetic Counseling

Ronald reports directly to the CEO. He has a degree in Microbiology, Immunology, and Molecular Genetics from UCLA and a master's in Epidemiology from Stanford.