Phone interview consisted of basic background/qualifications - basically a review of your resume. Panel Interview consisted of four different employees interviewing 30 minutes each. The first of which was a security clearance interview - he basically provided HR a thumbs up/thumbs down on whether or not you would easily be able to obtain a security clearance. The next was a somewhat recently hired employee in the Finance department, the next was a lady from HR, and the last was the head of the Finance Department - questions were all relative to the department the interviewers were from. Basic knowledge questions, experience, what you want to do in 5 years, what you want to get out of this job, so on... Very basic and pretty simple structure.