A system administrator who has been assigned the unenviable task of keeping important Windows NT systems
up and running.
Contrary to popular belief, administering a critical Windows NT system requires as much, if not more, technical know-how as administering a Unix server. The best NT system administrators know the various undocumented registry entries, proper service pack install procedures, and the various performance and stability tweaks that NT requires in order to stay up for weeks or months at a time. This is in addition to TCP/IP networking, hardware troubleshooting, etc. that any competent network or system administrator is expected to know.
Unfortunately, due to the "NT is easier" mentality fostered by Microsoft salespeople and the low level of skill required to get an MCSE, these few competent NT admins are easily lost in the flood of "certified" keyboard jockeys. Those organizations lucky enough to have them guard them jealously. All the good NT admins I know hold down four or five jobs, due to this demand.
Unix system administrators are not "better" than NT system administrators; a good sysadmin is a good sysadmin, whatever OS you place in front of him/her.