Amazon SDE-1 Interview Experience | University Talent | India

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SDE-1India0.83 years
May 18, 2025 β€’ 11 reads

Summary

I recently completed my interview process with Amazon for an SDE-1 role, which included an Online Assessment, two technical rounds, and a behavioral/LP round. I successfully received an offer after completing all rounds.

Full Experience

Hi everyone!

I recently completed my interview process with Amazon, and I’d like to share my experience. Hope it helps others in their prep!

πŸŽ“ Background:

  • 2024 Graduate (Tier-1 college)
  • 10 months experience at a startup
  • LeetCode Rating: 1950, Codeforces: 1450

Round 1: Online Assessment (OA)

πŸ“… Date: 15th Feb 2025

  • 2 Easy-Medium DSA problems (don’t remember exact ones) Finished in ~20 minutes
  • behavioral questions

Got a call on 7th May for scheduling! (yes, 3 months after OA πŸ˜…)

Round 2: Technical Interview

πŸ“… Date: 9th May 2025

  • Q1: BFS/DFS-based 2D matrix question (similar to Rotten Oranges)
  • 1LP Question
  • Q2: Predict the Winner
    • Solved using recursion + DP
    • Follow-up: How to get individual scores?
      • Answered using total sum and difference logic (a + b = total, a - b = diff)

Got a call same day for Round 3 scheduling!

Round 3: Technical Interview

πŸ“… Date: 13th May 2025

  • Started with 2 Leadership Principle (LP) questions
  • Q1: K-th Largest Sum of Contiguous Subarray
    • Gave O(NΒ² log K) solution using subarray sums + min heap
  • Q2: Longest Subarray with At Most K Frequency
    • Solved using 2-pointer approach

Got a call after 2days for Round 4 scheduling!

Round 4: Behavioral + LP

πŸ“… Date: 16th May 2025

  • 2 Leadership Principles Questions, Discussed on projects
  • Went well overall

Now waiting for the results... fingers crossed 🀞

Update:(21/05/2025) Got the Offer🎈

Interview Questions (4)

Q1
BFS/DFS on 2D Matrix (Rotten Oranges Type)
Data Structures & AlgorithmsMedium

A 2D matrix problem solvable with BFS or DFS, similar to the 'Rotten Oranges' problem (LeetCode 994), which typically involves finding shortest paths or connected components on a grid.

Q2
Predict the Winner
Data Structures & AlgorithmsMedium

Given an array of non-negative integers. Two players take turns choosing one of the numbers from either end of the array. The player who makes the sum of their chosen numbers larger wins. Determine if the first player has a winning strategy. Follow-up: How to get individual scores?

Q3
K-th Largest Sum of Contiguous Subarray
Data Structures & AlgorithmsHard

Find the K-th largest sum among all possible contiguous subarrays of a given array.

Q4
Longest Subarray with At Most K Frequency
Data Structures & AlgorithmsMedium

Find the length of the longest subarray where each element appears at most K times.

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