I applied online. I interviewed at Amazon (Bellevue, WA) in Mar 2021
Interview
2 phone screen interviews, 5 rounds of technical on-site interviews plus one research presentation. Every round has two programming problems, hard and easy/medium plus some machine learning-related questions. Also, some simple machine learning system design questions, do not have to be very complete.
Interview questions [1]
Question 1
Many objected-oriented design programming problems. Every round has two coding problems. The content ranges from complex trie structure design with specific functions, weighted graph problems, etc, and some machine learning-related problems. Better know some state-of-the-art techniques.
I applied through a recruiter. I interviewed at Amazon in Mar 2021
Interview
Connected with the hiring manager on linkedin. First, I received a phone screen from a HR. I was arranged for two round phone interviews. Not received any more further interviews.
I applied online. I interviewed at Amazon (Worcester, MA) in Apr 2021
Interview
The interviewer does not have the intention to interact; it seems that the interviewer does not care; the interview only lasts 20 minutes for 60 minutes coding interview. The worst interview ever.
Interview questions [1]
Question 1
Valid Anagram: Given two strings s and t, return true if t is an anagram of s, and false otherwise.