Totally 4 rounds. The first round was the test online, the next 3 online rounds were technical interviews. The questions were quite hard and tricky. The interview questions fluctuated from medium to hard leetcode.

The first round is written test with two parts: multiple choices and algorithms. Multiple choice main questions are about how deep of your understanding C++ programming (OOP, complexity,...) and the second part challenges your problem-solving skills. The process was hard and it took 2 hours to complete.