USAF - communications, cryptography, mainframe operations, PC networking Banking - mainframe operations, PC support Trans-Alaska Pipeline Co - mainframe support, PC networking & desktop support State of Alaska - PC desktop support, networking, server management. Patch management (WSUS), LANDesk system management. Standards and policies.
DOS/Windows, Linux (Debian, RHEL), SunOS/Solaris.
And just for fun - C-130H mechanic in the Alaska National Guard