Amazon Software Development Engineer interview questions

Applied online, followed by a half hour phone screen, and then after that, I had four 1:1 interviews with technial recruiters on various teams. They asked standard algorithm-based questions, focusing on amortized analysis and runtime/space efficiency concerns. Basic algorithms were mostly theoretical with little actual coding required.

Thought the position for AWS is HPC related position (MPI or so). But all questions are basic software engineering. First round coding test 1h. Failed in second round.