The process has 5 stages. Recruiter, engineering manager, technical task, tech interview, behaviour interview. Lengthy process and chaotic interviews. They expect you to be an ideal candidate in the current market. So don't get discouraged if you don't get a job. It's probably not you, it's them.

The first interview was with HR, it was enjoyable since it seemed like just a conversation with a colleague. The second interview was with the Engineering Manager, asking questions about your background and some technical questions.  Then they send you a code assessment that you have to do at home, it's fast and enjoyable, but is through a browser IDE which makes it a bit uncomfortable.The fourth step was with two members of the team during 1.5h, it doesn't feel like a lot of time because you are changing from one exercise to another. It's basically a code review of a class, explaining your code assessment and implementing new other features, and finally a system design.  I would say this last interview is not complicated, but for people not used to being observed and evaluated while thinking or writing code, it greatly limits their cognitive abilities.