Walker has been an engineer, an operator, a consultant and an investor in various Internet companies for over 20 years. He started his Internet career in 1995 at Netcom, the first nationwide dial-up Internet service provider. Previously, Walker was the VP of Mobile at NewsGator Technologies, and the CEO of Sepia Labs, the company behind the mobile app, Glassboard. Walker received a B.A. in Economics from Colby College, and his M.B.A. from Regis University.