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.

First Interview with an HR employee. All good and easy. Just reviewed my CV and told me a bit more about the company (nothing I did not know yet). Second interview was more complicated. Was asked about major trends in todays banking industry as a whole and then specifically about the retail sector. Then some consultancy style business questions, which I was not acclaimed to and frankly did not prepare for... The guy was kind enough to tell me straight away that they would stop the interview process at that point... I don't think I was completely bad but I did not answer quickly and precisely each and every time either. So make sure you structure your arguments well and try to anticipate some business case questions...