Zenimax owns multiple studios, including ID and Bethesda. Here is the link to the Zenimax job site. If you have a specific studio that interests you (i.e. Id-in Dallas, or Bethesda-Dallas or Bethesda-Austin) then select that studio on the careers page. You can also search by dev path.
There are several job openings at the Dallas and Austin studios (as well as other Zenimax studios)