I got mail from Amazon to attend interview process for SDE 2.
I gave OA long back and got this interview recently
Finished all 4 rounds and told will receive a high band SDE1 offer. No communication post that.

Questions:

1. Elevator system design. Behavioural questions with manager
2. Rotting oranges leetcode medium question, dp question similar to https://leetcode.com/problems/house-robber/
3. System design in my current projects/resume, whatsapp system design connecting both direct message send/receive, group message send/receive. See who viewed the message(Sent, Delivered, Read feature). Also had cases related to designing the DTO objects, DB design
4. Separate decimal part and whole number part from float number, Find the largest substring with distinct characters in a string, Bubble Shooter game (DFS algorithm and little modified logic) . Also had several behavioural questions

Seriously disappointed with the HR who dont return calls/mails after spending considerable time with Amazon and after being told that they are ready to offer a lowballed offer. Atleast expected some communication.