HR reached out about a boomerang interview, two rounds.
Round 1: 20 minutes of behavioral questions, 30 minutes of coding. The questions weren't hard, but there were two of them. The first one gave me a graph and asked me to print the shortest path — not hard, but the messed up part was there was no problem description, I had to guess it myself, and there was also some distracting code mixed in that I had no idea what it was for — I guess whoever set it up didn't clean up the paste properly. I was completely thrown off for the first few minutes. The second question was a lottery problem: given n people's bids (1-100 each), the probability of winning is positively correlated with the bid amount, and I had to output the k winners. I finished both. Honestly the questions themselves weren't hard, but the interviewer didn't even turn on their camera, and again, no problem description plus distracting code.
Round 2: 20 minutes BQ, 30 minutes system design. This is where it gets truly wild. Since it was a boomerang, the hiring manager looked at my resume and decided I was a good fit before scheduling me — and then for system design they hit me with an ML Infra question (the JD didn't even say ML experience was required): design an ML platform for scientists to train and deploy models. Then they asked me how I'd design online inference vs. batch inference. I'm just amazed — there's nothing on my resume that has anything to do with ML.
Guess I'll just consider myself rejected. (Also, for what it's worth, I don't think Amazon interview prep really helps much — you just walk in and go for it.)
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