J'ai postulé en ligne. J'ai passé un entretien chez Optiver en sept. 2024
Entretien
Don't waste your time there. You will spend 3 hours on a test that you may ace. Then you get invited by a cocky HR that will talk to you for 15 min before receiving a rejection saying that they prefer to move forward with candidates whose experience more closely fit the needs of this role. They insist on how important behavioral interviews are while you are wondering how the rude and dumb HR ended up there.
Online assessment including Hackerrank. After 2 months I received an invitation for a HR round (the classic stuff), then a technical round, take home assignment then final round split into technical then HR.
Online assessment with 30 timed multiple-choice questions. You have a minute and half for each question, Once the timer runs out you can't go back to that question. A big portion of the problems involve random walk. Some questions require an exact solution, and some are estimates.
A long and exhausting OT of a few sections. Then some interviews on standard green book questions. In between one HR interview. Final round on a take-home ML project. Overall nice experience and HR provides feedback throughout all interviews.