First the contact me via e-mail to make appointment for interview and let me choose a day. After choosing a day I got an e-mail with very clear instructions on how to connect to their online video-conference program skype-like. The interview was pretty easy, the questions were more related to my previous experience on the field the person was really nice. the head manager was supposed to join the interview but he didn't appear. 5 days after the day of the interview I got the offer.