I applied through college or university. The process took 2 months. I interviewed at Northrop Grumman (Boston, MA) in Oct 2016
Interview
The interview was pretty laid back. It was a behavioral interview where common questions were what did you do in specific situations. My best advice is to just be yourself and answer honestly. There were 4-5 behavioral questions, and they also asked why did you want to work for them.
Interview questions [1]
Question 1
What was an ethical dilemma you had to deal with and how did you respond?