I have not gone through it yet. I sent my application through email. I then received an email with a few questions such as salary, availability, nationality and interview dates. And then I received the interview dates.
I applied through an employee referral. I interviewed at Ateliers Jean Nouvel (Paris) in Jan 2017
Interview
Welcoming and fair. They were curious about my background which puts you ad easy. The process went well. They explained to me the various projects i would be working on.