I write software. Everything from big web sites, to rocket telemetry systems, to DDoS defence systems.
More than that, I help teams get better at building software. Put me in a room with some coders and some great product folks, and I'll make sure the software that gets built does its job well, and keeps adapting to change for a long time to come.
In my spare time I ride bicycles a lot, and catch penguins. (Ask me how!)