Josh Elman has been a product manager with some of Silicon Valley's hottest companies, including Facebook, Twitter and LinkedIn.
Greylock also was one of LinkedIn's earliest investors, with more than a 15% ownership stake prior to this past summer's IPO.
Elman most recently spent two years with Twitter, where he founded and led the micro-messaging company's "onboarding and growth" team. Before that he was product manager for Facebook Platforms, where he helped launch Facebook Connect. His LinkedIn career spanned January 2004 to July 2005, where he managed product development for LinkedIn Jobs.
Elman also served in product development roles with Zazzle, RealNetworks and Homestead.