Northrop Grumman Software Develpper interview questions

Lengthy process and difficult technical questions. It seems to me that they are trying to eliminate candidate who don't have the insider's help. In all, "It was not about what you know, but who you know."

I arrived and got my security badge. My point of contact escorted me to an office, where he set up a conference call to the first person I was supposed to be interviewing. This person ended up being too busy to talk, so I talked with the team lead. It was a pretty standard interview, he asked about the projects I listed on my resume and my experience. He answered the questions I had. I felt like I was qualified for the job as he described it and that it would be a good match for me, so I left feeling positive. I was told that they would reschedule an appointment for me to talk with the first person. I wasn't worried, because I had done so well at the interview, however when I called a week later, the position had been filled. I guess my only advice would be to call back 2-3 days after the interview, even if you feel you did really well.