Amazon SDE 2 interview experience (Full loop. Rejected. )

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SDE 2
May 1, 20255 reads

Summary

I had a full-loop SDE 2 interview experience at Amazon, which included two Data Structures & Algorithms rounds, a Bar Raiser round focusing on coding and LPs, and a Hiring Manager round primarily on System Design and LPs. Despite a positive self-assessment for the initial coding rounds, I was ultimately rejected, indicating challenges in the Bar Raiser and Hiring Manager sections, particularly with the Leadership Principles and System Design.

Full Experience

Giving back to community

=> Initial OA has 2 DSA problems(cannot remember them). I attempted the test in 2nd week of March, The recruiter was not able to find any panels till first week of April.

Interview loop started in first week of April and ended at last week of April.

=>1st Round: DSA. Round taken by SDE1. 1 hour

1)https://leetcode.com/problems/even-odd-tree/description/
2)Monotonic stack question
LP: Ownership, donot remember
Self verdict: hire

=>2nd Round DSA. Round taken by SDE2. 1 hour

1)Another monotonic stack question
2)you can remove atmost k elements in an array (can contain -ve elements). Find the maximum acheivable sub array sum.
LP: Dive Deep, donot remember
Self verdict hire

Got scheduled bar raiser and hiring manager rounds as first 2 went well.

=>3rd Round. Bar raiser. Coding Logical and Maintainable (supposed to be LLD but got asked another DSA question) 1 hour

1)Given an encoded string; output decoded string. Eg: a3[b2[c]] => abccbccbcc. You get this by expanding innermost bracket first.
Even this question can be solved by using monotonic stack XD. But I got panicked and used recursion (it works the same way tho). Not sure how I can make this code more maintainable as its a simple DSA problem

LP: 1. Tell me of a time where I learned something out of my day to day work.
2. How did I manage tough deadlines

Self Verdict: Lean hire?
Actual Verdict: No hire

=>4th round. Hiring Manager. System Design (1 hour 20 mins)

Asked a lot of LP for like 30-40 mins. Work exp, some initiative that I took on my own. Got grilled like crazy. Might have effed up a little here

System design. Design an upload service like Google Drive for both files and photos. Very standard question and I thought I answered decently but Idk

Verdict: No hire.

Final Verdict: No hire.

Interaction with recruiter was soo annoying as I felt like I got continuosly ghosted, I had to prompt them continuosly for updates. Felt anxious throught the process as I haven't interviewed in last 4 years. Will have to keep grinding I guess.

Interview Questions (6)

Q1
Even Odd Tree
Data Structures & Algorithms

Even Odd Tree

Q2
Maximum Subarray Sum after Removing K Elements
Data Structures & Algorithms

Given an array (can contain -ve elements), you can remove at most k elements. Find the maximum achievable subarray sum.

Q3
Decode Encoded String
Data Structures & Algorithms

Given an encoded string; output decoded string. Eg: a3[b2[c]] => abccbccbcc. You get this by expanding innermost bracket first.

Q4
Tell me of a time where I learned something out of my day to day work
Behavioral

Tell me of a time where I learned something out of my day to day work.

Q5
How did I manage tough deadlines
Behavioral

How did I manage tough deadlines.

Q6
Design an Upload Service (Google Drive like)
System Design

Design an upload service like Google Drive for both files and photos.

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