The initial stage was a relaxed phone interview to know the candidate's motivations and backgrounds a little better, lasting around 10-15 minutes. This was followed by a F2F with three senior managers, where questions were more intense and direct. The final F2F interview following this included a written task where they left you alone to complete it, and a more casual/relaxed interview as compared to the previous. After three direct interviews and one presentation, they failed to offer specific feedback on why I was rejected. Instead, I was sent a copy-paste email.