The process included 6 interviews, all technical other than HR.

The first interview was a coding exercise; all others were frontal.

It took place over two days. One day had two interviews, and the other had four.

Even though they did this to accelerate the process, the end result was 3 technical interviews in a row, which was very hard.

Write multithreaded code that accesses a REST service and prints a report from the gathered data.

Design a system that can create reports from huge data.

counter=0 Two threads are doing for i = 0; i < 10; i++ { counter++; }. What are the possible values of counter?

Implement a stack that can return the maximum value of the stack in O(1) time.

Design a checkers game.