Built/maintained a large payroll firm's network and computer system.
Built an application for clients that bridged the web to
above system, allowing online payroll entry
(server ran netware, web app ran linux, sendmail, apache,
php, postgresql etc)
Created an interactive web-enabled contact database for a government agency
Built and wired numerous and various computer networks for locals
etc etc... Most of my favorite (and most complex) work seems to
center around SQL and server-side scripting.