I applied online. The process took 1 week. I interviewed at Yandex (Moscow, Moskva) in Dec 2017
Interview
The interviews were not so hard. There were about 10 questions and tasks in total, mostly focused on code-writing skills. Some were easy, some were truly technical. The staff was very kind and friendly and guided me through the whole process.
Interview questions [1]
Question 1
Imagine you have two really large txt files. In each file, there are written a lot of alphanumeric strings separated by a newline character. How would you get the strings which are present in the first file but do not appear in the second file?
