The process took less than 3 weeks: application, first screening by HR, then first call with hiring manager, after which I got a positive feedback and moved to the next round: a call with the team. This call turned to be a 1:1 with one of the team member, a very intense Q&A session. After a week I received a bit vague email by HR, saying that they will move forward with other candidates: I totally understand, rejections are part of life, nevertheless I would encourage Adyen to provide clear feedback, since this would help job applicants to improve.