I applied online. The process took 3 days. I interviewed at McQ (Lille) in Aug 2020
Interview
It was prefaced with an hour long coding test (4 algorithmic questions), then a meeting with an engineer and the CEO. I didn't like having to do the test before anything else.
Interview questions [1]
Question 1
It mostly consisted in knowledge questions (describe backprop, PCA, questions about C++).