Code home test, personality home test. After I passed the first stage, there was an interview with a senior in the company. After that, I was informed that I passed and reached the loop stage. The loop stage consisted of three interviews, each one hour long, all on the same day. Each interview included half an hour of questions about Amazon's Leadership Principles through personal stories and half an hour for a coding question.

1. Write an algorithm that returns the first letter that appears in a string only once.

2. Product of array except self (LeetCode question).

3. Build a system to manage employee recommendations for job seekers they submit.