I am a Red Hat Certified Architect and thus specialize on building and managing RHEL environments mostly.

There's a couple of packages I maintain for Fedora, my distro of choice (most of the time). Most of those packages have to do with Yubikeys, a tiny, nifty device that generates one-time passwords. Check them out on Yubico's website.

I do a little programming in Python, Ruby, PHP, Bash and a (very) little C in my - almost nonexistent - spare time.