you have to pass 4 interviews and for each one you have to wait a week to confirm the transition to the following interview, the tests are complex and stressful especially the 3rd interview it's a technical challenge to code in real time and that 3 people are watching you live the duration of this interview 1h and 30 min, at the end of the interviews you will be totally exhausted with the number of questions you feel like you're going to work at Google really it's exaggerated but it's an important experience for yourself going through the worst it's already not bad