I've been playing in operating systems; mainly, I/O systems, file systems, and storage systems. You can find me in group pictures of Linux Kernel Developers Summit 2007, 2008, 2009, 2010, but who cares about what I look like?
I founded and have maintained the GoBGP project, a BGP implementation in the Go Programming Language.
I founded and have maintained the Ryu SDN Framework project, Python libraries for networking.
I founded and had maintained iSCSI Enterprise target software (IET), enables you to convert Linux machines into iSCSI storage systems. It's the most famous "iSCSI target", Google said on March 20, 2007.