Interview was conducted in many steps, I talked to at least 4 or 5 different people until I was given a coding test. Everyone I talked to was friendly and easy going. Coding test was not too hard, more focused on grasping my vanilla JS knowledge than specific frameworks, which I think is a good approach. The hardest part of the process was coming up with answers to all Amazon leadership principles, which is something you definitely should prepare for.

Rounds 1 and 2: phone interviews. Recruiter and then Sr Developer. Round 3: 3 hours on site for four interviews - Product Manager, 2 Developers (separately) and the CTO. Was good until the CTO said that he prefers cheap off-shore developers and that those developers are better than the ones they have in the other room - WUT? Received an offer (had 2 others) and they came in 5k under both other offers and said they could not justify matching or beating the others because Ring works on 'cooler' things. Needless to say I did not take the job.