Bastard Operator From Hell

The Bastard Operator From Hell (BOFH) is a fictional rogue computer operator created by Simon Travaglia, who takes out his anger on users (who are "lusers" to him) and others who pester him with their computer problems, uses his expertise against his enemies and manipulates his employer.
Several other people have written stories about BOFHs, but those by Simon Travaglia are considered canonical. 
The BOFH stories were originally posted in 1992 to Usenet by Travaglia, with some being reprinted in "Datamation." They were published weekly from 1995 to 1999 in "Network Week." Since 2000 they have been published regularly in "The Register" (UK). Several collections of the stories have been published as books.
By extension, the term is also used to refer to any system administrator who displays the qualities of the original.
The early accounts of the BOFH took place in a university; later the scenes were set in an office workplace. In 2000 (BOFH 2k), the BOFH and his pimply-faced youth (PFY) assistant moved to a new company.
References in other media.
The protagonist in Charles Stross's "The Laundry Files" series of novels named himself Bob Oliver Francis Howard in reference to the BOFH. As Bob Howard is a self-chosen pseudonym, and Bob is a network manager when not working as a computational demonologist, the name is all too appropriate. In the novella 'Pimpf' he acquires a pimply-faced young assistant by the name of Peter-Fred Young.
Simon Travaglia.
Simon Travaglia (born 1964) graduated from the University of Waikato, New Zealand in 1985. He worked as the IT infrastructure manager (2004-2008) and computer operator (1985-1992) at the University of Waikato and the infrastructure manager at the Waikato Innovation Park, Hamilton, New Zealand (since 2008). Since 1999 he is a freelance writer for "The Register". His website, bofharchive.com, says he lives in Hautapu, New Zealand.