Amazon

I applied online. * Online Assessment (OA): A 60–90 minute HackerRank test featuring 2-3 Medium-level DSA questions (arrays, strings, trees). * Technical Phone Screen (Optional): Sometimes conducted for experienced roles, this is a 60-minute session

It's an average to hard process. They asked for an introduction and then asked questions on DSA. There was one problem on linked lists, which was easy, a second one on arrays, and a third on dynamic programming.

I applied online. The process took 2 months. Started with a recruiter call. Follow-up was a single hour-long technical interview. After that, was scheduled for 5 hour-long onsite interviews in a day. No take-home interview at any point.