One in-office interview, lasting approximately 4 hours, but it's been a while ago, and the interviewing process has changed. There was also some kind of phone screening in the form of an online test.
Lots of tricky C++ specific questions.
A couple of puzzles and small whiteboard coding exercises.
The following metrics were computed from 2 interview experiences for the Yandex Software Development Engineer role in Moscow, Russia.
Yandex's interview process for their Software Development Engineer roles in Moscow, Russia is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for Yandex's Software Development Engineer interview process in Moscow, Russia.