John S. Kim is the Cofounder and CEO of SendBird (Y Combinator W16), a B2B startup providing a messaging solution for enterprises. The platform currently serves tens of millions of monthly active users and many of the best-known logos around the world, like Yahoo! Sports, GO-JEK, Hinge and one of the most active websites in the world. John is a serial entrepreneur and an expert in the messaging space. Little known about John is that he was Korea's no.1 pro-gamer for Unreal Tournament.