After applying online, I was sent an email several weeks later, announcing I was selected to be in the next step in the application process. The interview consisted in a test, with five or six cases of study. You were not allowed to use a calculator, and the test was very deep and long. Time and answer as many questions as you were able to, were very important. Then, I had two different 1:1 interviews with a consultant about an hour each one. First ten minutes were about personal questions: challenges, reasons to apply, etc. But most of the time was a case of study, which was very hard, and you need to be very fluent and experienced in order to solve it properly. Definitly, I think it was too much for an engineer not an economist.