The process took 4 weeks. I interviewed at Amazon in Feb 2020
Interview
Applied Scientist Intern
One informal phone screen about research. Two phone interviews about research and behavior questions. Coding exercises are focus on NLP model and evaluation metrics. Interviewers are super helpful and encouraging, Really nice interview experience.
Interview questions [1]
Question 1
BQ: What did you do when you disagreed with other's ideas?
Phone screen interview
Then onsite interviews: 5 interviews two on coding and three on science and a tech talk
You choose a topic for the presentation
The science interviews are: one on science depth, one on science breath and one on science applications
Interview questions [1]
Question 1
Question on optimizers; comparing gradient decent, adam optimizer etc
Applied for Amazon AGI. After first round, it will go into full round of multiple interviews. Lots of modern LLM training technic questions. There are still some behavioral questions, but less than general Amazon roles.
Interviewed with 1 phone screen, 1 coding, 2 ml design and 2 lp rounds. Most questions were non-leetcode questions more related to day to day ml implementations. The questions were very practical.