Yandex

Give 5 hours OA. OA is really difficult; you need to solve about 3 of 5 problems. Then you have about 2-3 technical rounds. If you pass the technical rounds, then they start team matching. You will have interviews with the team; they can ask what th

1 overall ML interview - common ML theory questions. 2 algo interviews - something between easy and medium from LeetCode, no complex data structures. Then final interviews - mostly talks about experience, sometimes a simple ML task.

I processed online, and it took 2 months. The process included: * An algorithm contest with about 5 problems. * Two online tech interviews solving algorithm problems. * Several final sections with team leads.