I applied via LinkedIn and had the first interview after a few days: I met a senior consultant and we talked about my background, my interest for the company and I eventually solved a small case. The second interview happened approximately a week later : I had to prepare a 1-page paper at home, then to create a powerpoint presentation during 1 hour and to present it. The third interview occured after another week: I met the office Director and we talked about the organization of the company. The whole process took a bit less than 1 month.