The interview took more than 4 hours. A presentation has been given at the begining and then 1-by-1 interviews with 5 person (2 directors, 2 scientists and 1 HR director). Overall, very friendly with a lot of questions and evaluations (personal skills, technical questions, etc.). Apart from one of the interviewers who was playing with his cell phone the whole time the others were really professional with nice manners.