Seth works with entrepreneurs who are building consumer products and platforms from messaging to e-commerce to AR, VR, apps, games, and more. Prior to joining Greylock, Seth worked as a Product Manager at Facebook where he led initiatives for the Messenger Developer Platform. He oversaw the transition from Facebook to a standalone Messaging app, managed integrations with key partners, such as Uber, Lyft and KLM, and launched the open developer platform, with over 30,000 developers. In just t...