Spent a few years cutting my teeth in the ISP world. Started as a junior systems admin and within 2 years was running security and linux/unix userland development.

Spent several years in the security industry working for various companies in various roles, from bespoke development on a bespoke firewall distro, to penetration testing and training clients in ethical hacking.

Now days I spend my time programming in C, Python, and a bit of perl/php and shellscripting. Im working on several security projects and am involved in kernel development.