Blue Origin Engine Avionics Test Engineer interview questions

First interview was a 15 minute phone screen with HR. That was easy--just wanted to verify my legitimate interest in the position and experience. Second interview was a 30 minute technical interview with an engineer. He called me 20 minutes late which through me off a bit and asked me if I had experience with a couple things I wasn't familiar with. He seemed disinterested. I got an email a week or two later with a rejection.