There was a preliminary iq test.
It then progressed to a final interview with a senior employee at the company,
They asked me a brain teaser and a few questions.
Questions d'entretien [1]
Question 1
Explain a technical concept or project from your studies
I took a test which was very maths heavy e.g. which of these numbers is not a sum of squares then had an interview which was very short. They asked some easy logic questions and motivation for applying.