Loren Cheng is a product manager at Facebook, where he helps lead the development of Graph Search. Specifically, Loren led the teams that built the results ranking and grammar systems that power Graph Search. Previously, Loren worked on the team that built out Facebook's payments infrastructure. Loren came to Facebook in 2010 from PayPal, where he was a product manager on the Emerging Technologies team that launched PayPal X, the PayPal Developer Platform. Before that, Loren was vice president and head of product management at Zecco.com, a stock and option investing company built on a ground-breaking pricing structure and trustworthy education. Previously, Loren also worked at eBay and Yahoo in a variety of product management roles. Loren hold a bachelor's degree in computer science from Stanford University.