KK is a software engineer in Google with a networking focus. He spends part of his time enabling people to send traffic on Google's peering edge in Espresso. He also spends part of his time stopping people from sending traffic working on bandwidth enforcer. In between, he dabbles in random projects from completely secret explorations to open source ones. KK became a software engineer after promoting software-defined networking (SDN) for several years in Stanford, where he got his Ph.D. He sometimes reminisce about SDN without all these fibers.