I've been through 2 round of interviews. The first round last about 30 mins. It is just self introduction and checking whether you have certain experience (eg. programming, Azure, cross-functional communication, etc. ). The second round last for an hour. The first 30 mins is the same as the first one but it's with different person and the last 30 mins is a business case. You have to speak out everything in your mind when you are solving the questions. There is not many hints but you can ask questions. The language I used is like 20% French and 80% English.