First interview is generally by phone with one person. Next interview consists of 4-5, 45 minute sessions with various people who work on different projects/covers different topics. The first couple of minutes within the interview session is introductions. Then the next 15 minutes are interviewers asking questions and the latter 10-15 minutes give you an opportunity to ask any kind of questions.

I was contacted by a hiring manager and was asked to give her my references, transcript and sample SAS code. I had a phone screening with a statistician. She asked me a lot of behavioral/technical questions regarding SAS. In the end, I was confident that I would be invited to an in-person interview. However, two weeks later, I received a rejection email. When I asked for feedback, there was no response even though I was being encouraged to apply for RTI in the future.