One phone call and one zoom call (1 hour~). Interviewer was very nice overall, and there were no technical portions to the interview. Once admitted, getting the security clearance took a lot of time, so apply early.
Interview questions [1]
Question 1
Questions on resume, previous internship experience, easy fizzbuzz
I applied through an employee referral. The process took 1 day. I interviewed at Lockheed Martin in Mar 2009
Interview
Very relaxed, mostly personality and checking my background knowledge in software engineering such as design consideration, object oriented design, familiarity with programming languages, UML.