They first called me and scheduled a second call in which they asked me a lot of things about my resumee. They organized a meeting where I had to take a test of 20 IQ excersises in half an hour and one question are with math problems, moral questions and technical questions and an interview with the recruitment staff. They arrenged a second meeting where I had and interview through Skype with three managers from the central office. I also had to take an online quizz with math and moral questions.