They talked about my resume for the most part. A few questions about object oriented programming. After that it was pretty casual and we talked about career goals and what I could accomplish at the company. We talked about about everything from what they do with UAVs to their commercial aircraft simulators. They really appreciated my curiosity and enthusiasm, so do some research before the interview. Know your resume, study some basic software engineering concepts beforehand, and be relaxed and you should do fine.