I applied online. The process took 1 week. I interviewed at Amazon (Seattle, WA) in Sep 2021
Interview
I had 2 interviews in 2 consecutive days. The first one included a coding challenge (solved it in a short time then I was asked to provide a less complex solution) and a ML case study + 1 behavioral question. Second interview focused on ML questions and my research + 2 behavioral questions. The ML questions almost covered all the key words mentioned in my resume.
Interview questions [1]
Question 1
what are transformers?
What are vision transformers?
what is the time complexity of the attention matrix?
what is the advantage of vision transformers over CNNs?
what is a ResNet?
what is data augmentation?
what are the preprocessing techniques?
How does YOLO work and whats's the cost function
Two interviews, a generical python one where we needed to write a convolution by-hand and a technical, math focused one with some standard questions on standard regression, bayesian inference, vincolated-non vincolated optimization.
Interview questions [1]
Question 1
What is the bayesian prior that induces the Ridge (L^2) regularized regression?