Started the interview process with an introduction chatting. Mostly talking about my motivations/aspirations and why Adyen. It was a great chat for me to learn about the company. Few days later, the next round is a hacker rank problem that I need to solve it in the given time constraint. Follow up an on site interview, to review my solution for me to explain why I solve it this way and again a lot of why question. There a few culture rounds, technically the company wanted to make sure that I am able to adapt to the way Adyen is working, especially the Adyen Formula. Last but not least, I had a chance to have the interview with the board member, which is interesting to me. This time, I was given time to ask more questions. Overall I had good experience in the whole process.

I applied as a java developer (graduate program). There were 5-6 rounds which consumed a lot of time (If you pass one round, then you'll be moved forward). HR screen > introductory session with one senior dev (introduce yourself, why you're interested in Adyen) > Hackkerank > Code review with one tech lead and one senior > so on.. I failed at code review, they asked a lot of deep question to determine whether you really understand java.