I applied through university. The process took 1 day. I interviewed at Northrop Grumman (Champaign, IL) in Oct 2013
Interview
Was fun. Nice guys all around, asked some technical questions. They were doing a definite personality check and had two guys in there same time asking different questions. Many of my friends also had interviews and all stated that it was quite a nice experience. The questions were very general in their engineering relevance, but quite interesting.
Interview questions [1]
Question 1
What are the four forces an airplane experiences in level flight