Stan Chudnovsky is a co-founder and venture partner at NFX. He is also the head of Facebook Messenger. Before Facebook, he was vice president of growth and global strategy at PayPal after IronPearl, which he co-founded, was acquired in 2013. He also co-founded several other successful companies, including Jiff, NFX, Ooga Labs and Wonderhill. Before that, he created Tickle Inc., one of the first social networking companies, and by 2003 had turned it into one of the largest sites in the world. Originally from Moscow, he earned an engineering degree while still in Russia. He worked as an advisor for Ridge Ventures. Worked as an advisor at BranchOut.