After taking an online assessment, there will be a call for 30 minutes with HR. After that two interview days follow, where one on one conversations with managers of all levels are scheduled, from 9 to 5 more or less. If you get the "ok" after the first interview day a second one is scheduled. Suit without tie and standard laptop bag is totally fine as dress code. Interesting concept, had a good experience overall. It is important to know the company's key figures, to read the annual statement, but nothing too detailed.
Interview questions [1]
Question 1
Take one thing in this room and estimate the global market value.
Pick one project in a previous internship you were involved in and explain it to me as if I am 5 years old.