It was more of a Job Similulator - they gave ETRAP questions (so you had to reply to emails). Complete Numerical reasoning tests and answer video interview questions. Best thing to do is practice difficult curve ball questions. Questions that apply to on the job situations, it was not your typical interview.

During the assessment centre, you have a role play, a presentation exercice, an interview, and two group exercices. Assessors are very nice and they put you at ease. You receive an answer if you are taken one week later. This company has a great culture !