Status: MS CS grad, (4 years of prior work experience)
Position: SDET 2 at Amazon
Location: Seattle, WA
Date: July, 2020
Note that SDET interviews at Amazon and Google are same as SDE interviews (i.e. hiring bar is the same making it possible to switch between roles)
Online Assessment - From Amazon's list of Online Assessment questions
Onsite rounds: All of 1 hour each
Round 1 - Behavioral questions based on Leadership Principles (LP), few testing process related questions.
Round 2 - Bar Raiser - System Design of a Notification System
Round 3, Round 4, Round 5 - Coding rounds with around first 30 minutes for LP questions. Questions were Leetcode Hard, Medium and Easy respectively.
Overall, stressful but a good experience. Interviewers were helpful and encouraging.
Result - Selected for SDET 1 (I think partly because of my lack of experience working on large projects. Also, System design round was okay).