I applied through my school Job Portal, it took them around 1 month to get back to me, but after it was all really fast (2.5 weeks of total recruiting process). First interview was with the International Team manager, about 45 min. A lot of it was about my previous working experience and my motivation. Then some questions about N26 product (a lot on the account opening procedure) to end with a small brain teaser (what's the angle between the watch hands when it's 3:15?). Second and third interviews with 2 managers of the team (around 30 min each), again about my past, and a lot about costs and revenues connected with N26 users. Small business cases and brain teaser. Last interview with the country manager, on the same blueprint of the previous ones, with a estimation case in the end.