Before the interview you are required to fill out a long form listing all your experiences for the last 10 years with references of people who can confirm what you've done in those 10 years. The interview itself, like most people here said, consists of a lot of behavioral questions. Be ready with the scenarios/examples for each one of them (considering you don't know what they are going to ask, as they have a long list of questions about any work situation you can and cannot imagine). Some questions can be about something you have never dealt with and you are still expected to come up with an example. I think some of those questions are not the best way to assess a candidate and there should be more open-ended questions allowing a candidate to talk more about their actual experience or give an opinion on a certain situation, rather than trying to fit an answer within a hypothetical scenario that they give you. My impression was - they already had someone in mind for a position and were just interviewing other people as part of a protocol. They mentioned a few times that they had to interview a few other people. I received a rejection letter about a week after, which is considerate on their part.