first called the supervisor, and then an interviewed was arranged. You have to give a talk to a team, In a few days, they will let you know the result. An offer letter was sent in about two weeks. This is for technology specialist I geophysicist. Since it is an interview, you need to know what the people are doing daily, not just in the meeting room, but what they are experiencing in real work, the presentation, the stress, the frustration, etc. You have evaluate both the good and bad.