A serial entrepreneur and a software developer, Jeff co-founded Twilio in 2008 to bring communications into the world of software. Prior to Twilio, Jeff was co-founder & CTO of NineStar, founding CTO of Stubhub.com, co-founder, CEO & CTO of Versity, and one of the first product managers for Amazon Web Services. Jeff grew up in Detroit, started his first company at age 12 doing event video production, DJ’d his way through college, and graduated from the University of Michigan. He is a father of two young boys, enjoys photography, and always makes time to hack on new software and hardware projects.