Retail / cloud

Amazon interview themes

What people report studying for — not a take-home dump. Last editorial update 2026-06-28.

Rounds you should expect

1. SQL

   Top-N per partition, window vs self-join, and a join that must not explode.

2. AWS data

   Tiny files on S3, Athena bytes scanned, when Glue is enough vs EMR.

Practice these stacks