I interviewed for SDE I role for AWS in July. There were a total of 5 rounds: 1 OA + 4 interviews. The entire process took around 15-20 days. I won't be sharing exact questions here.
Online Assessment: June 29, 2021
It consisted of two questions, one was a variant of Two Sum problem (LC Easy) and another one was based on priority queue + matrix question to get K-closest items (LC Medium)
After the online assessment, I got a call from the recruiter giving me details about further rounds. I was informed that I'll have 4 rounds, of which 2 rounds would be DSA-based technical rounds. I'll get consolidated feedback of both the rounds and then further advance to the next 2 rounds which will be LP-based behavioral rounds.
I was told what materials to look for the prepration and was adviced to answer LP questions using STAR methodology.
1st Interview: July 07, 2021
It was a video-based round on Amazon Chime. The interviewer started by introducing himself and took a general introduction about myself, work that I did in my previous organization. It was very brief and quick. He then introduced me to the coding environment, it is a simple notepad-based text editor with syntax highlighting of the language of your choice. You cannot run your code in it. Got 1 array-based question (LC Medium) to be solved in O(n) time.
2nd Interview: July 07, 2021
This round also happened on the same day. Again started with the introduction of both. He then told me that he expects my solution to be production-ready. Got two questions. The first one was based on array + binary search (LC Medium).
The second one was a tree and dfs traversal-based question (LC Medium).
Got a call the next day that I have cleared both the rounds and they will be moving ahead for the next two rounds.
3rd Interview: July 12, 2021
It was an LP round. Started with the introduction. He told me to tell about projects that I have worked on and my responsibilities in them. Then I got the questions that are pretty much covered in the list of questions already shared before. There were follow-up questions for each of the scenarios that I told. Follow-ups were like why a particular thing was done, why not another way of doing it opted, what was the driving factor of decision, etc. I was asked to explain until the interviewer was fully satisfied. I would say the key is, to be honest.
4th Interview: July 13, 2021
Again LP-based round. It happened the next day. Started with the intro again. He then asked me if I have done some certification? What are they? am I planning on doing any more certifications? Why I did certifications? An interesting technology that I have learned in the past year? why think it is interesting? why did I learn that? apart from these questions next questions were again standard LP questions already available. There were no follow-up questions this time.
Got confirmation the next day that I have cleared all the rounds and soon will be getting my offer.
Received Offer: July 15, 2021
For preparation: I think solving previously asked questions are of great help. The list of questions is available easily.
For LP: please put in some time and come up with at least one genuine scenario for each LP-based question that you can answer and prepare beforehand. I spent at least 1-2 days listing out all the examples that suit LP questions.
For Interview: Please be honest as they might dig deep to understand a situation.
Compensation: https://leetcode.com/discuss/compensation/1391771/Amazon-(AWS)-or-SDE-1-or-Bangalore-Accepted
I hope this helps. Please ask in the comment section, if you have any further questions.