As the former Linux kernel maintainer for wireless LANs, John presided over the transition of that subsystem from "constant heartache" to "mostly just works" status. More recently, John's technical pursuits have included SDN and NFV topics. Employed at Red Hat for over a decade, John has spoken on a variety of topics at Linux Foundation events around the world. On top of that, for several years John has served as a member of the Technical Advisor Board for the Linux Foundation.