Yandex

I applied online. The process took 7 days. Candidates pass through a phone screen (1 hour) and then four or more on-site interviews (1 hour each), depending on the number of teams the candidate is considered to work with. They are typically stacked

That was a discussion with three people from the software engineering group for which I was applying. There were some engineering tasks, questions about experience with details, some puzzles, and some math.

The overall process consisted of 3 technical interviews and one HR call. The first two technical sections contained algorithmic problems (LeetCode - medium to hard). They evaluated your code and how well you know the language.