1. Online test - A really easy task, no coding required, just choosing the right options.
2. Remote tech interview - Questions about language and its tools, not very hard.
3. Remote interview with manager - Questions about motivation and leadership.
4. Test task - You need to fix an existing app, a very strange task for a Senior position.
5. Invitation to the office for three in-person tech interviews - Questions about software skills and algorithms.

The last stage was really cold. I received an email with "no-reply" and a general rejection. I was really disappointed after spending so much time and flying 10 hours for the interview.

Find a loop in a singly linked list.

Write code to synchronize different threads.

Find the numbers in a loop whose summation equals a given number.