Lead Programmer Rick Johnson has put out word that they are looking to hire a "User Interferce designer" over at Raven Software to work on Quake 4.

This person will be responsible for both creating in-world UI’s ( control panels, consoles, information panels, etc) as well as player interface menus for a Doom3 based product. UI's will be written in a custom language that is part of the Doom3 engine. Raven has constructed an integrated visual tool which assists the user in creating most UI functionality.

ShackNews has Rick Johnson's .plan which contains all the details about the position and its requirements.