alpha geek

from Jargon File (4.4.4, 14 Aug 2003)

alpha geek
 n.

   [from animal ethologists' alpha male] The most technically
   accomplished or skillful person in some implied context. "Ask Larry,
   he's the alpha geek here."

from The Free On-line Dictionary of Computing (8 July 2008)

Alpha Geek

   <job> The head {geek} or geek's geek.  When no one else knows
   the answer, or several techno-types give conflicting advise,
   or the error message says "consult your administrator" and you
   *are* the administrator, you ask the Alpha Geek.

   (1997-06-25)