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Amazon SDE (Software Development Engineer) Interview Questions, Process, and Tips

Updated 8 Mar 2023

Top Amazon SDE (Software Development Engineer) Interview Questions and Answers

View all 10 questions

Amazon SDE (Software Development Engineer) Interview Experiences

22 interviews found

I was interviewed in Aug 2016.

Interview Questionnaire 

3 Questions

  • Q1. A variant of Longest Increasing Subsequence
  • Ans. 

    Find the length of longest increasing subsequence in an array.

    • Use dynamic programming to solve the problem efficiently.

    • Maintain an array to store the length of longest increasing subsequence ending at each index.

    • Traverse the array and update the array for each index.

    • Return the maximum value in the array as the length of longest increasing subsequence.

  • Answered by AI
  • Q2. Maximum of every window of size K in an array
  • Ans. 

    Find maximum of every window of size K in an array

    • Iterate through the array and maintain a deque of indices of elements in the current window

    • Remove indices from the front of the deque if they are outside the current window

    • Remove indices from the back of the deque if their corresponding elements are smaller than the current element

    • The front of the deque will always contain the index of the maximum element in the current

  • Answered by AI
  • Q3. Binary Search in a semi infinite array
  • Ans. 

    Implement binary search in a semi-infinite array.

    • Start with the first element and keep doubling the index until the target element is less than the current element.

    • Perform binary search on the subarray from the last doubled index to the current index.

    • If the target element is not found, repeat the process by doubling the last index and searching again.

    • Handle edge cases where the target element is at the first index or n

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: Some MCQs on Networking,OS,etc. were asked and 3 coding questions on linked list,etc. were asked.
Tips: Be fast and confident.
Duration: 1 hour 30 minutes
Total Questions: 32

Round: Technical Interview
Experience: Interviewer asked my name and interests and then went about with the questions.
Tips: Must be strong in algorithms and data structures.

Round: Technical Interview
Experience: I was initially unable to solve it but I asked for some hints which were enough.
Tips: Take your time and ask for hints if required.

College Name: IIT Varanasi

Skills evaluated in this interview

I was interviewed in Dec 2016.

Interview Questionnaire 

2 Questions

  • Q1. Convert expression to post-fix
  • Ans. 

    Convert an expression to post-fix notation.

    • Start with an empty stack.

    • Scan the expression from left to right.

    • If the scanned character is an operand, output it.

    • If the scanned character is an operator, pop two operands from stack, output them in post-fix notation and push the result back.

    • Repeat until the end of expression.

  • Answered by AI
  • Q2. Maximum continous sum in an array of integers
  • Ans. 

    Find the maximum continuous sum in an array of integers.

    • Use Kadane's algorithm to find the maximum subarray sum in linear time complexity.

    • Initialize two variables, one for current maximum sum and another for overall maximum sum.

    • Iterate through the array and update the variables accordingly.

    • Example: For array [-2, 1, -3, 4, -1, 2, 1, -5, 4], the maximum continuous sum is 6 (from index 3 to 6).

  • Answered by AI

Interview Preparation Tips

Round: Resume Shortlist
Experience: I interned at Amazon, which allowed me to skip round 1.
Tips: Just go through questions on geeksforgeeks and practice on hackerrank, almost all of the questions will come from them.

Round: Technical Interview
Experience: The discussion was mainly focused on my interests and what all I had learned from my previous experiences.
Tips: You should show your passion for the technology here. What fascinates you the most in tech. Are you a curious one. Don't try to fake here as it might backfire.

Round: Technical Interview
Experience: 2 programming questions.
Tips: If you have give a sincere effort in practicing to solve algorithmic problems you should be good.

Round: HR Interview
Experience: I had gone through this code on geeksforgeeks, so I had a basic idea of the approach and hence I was able to solve it. This round was taken by the manager and we mostly discussed my interests.
Tips: A genuine interest in any particular field will be of great help.

College Name: IIT

Skills evaluated in this interview

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Amazon Interview FAQs

How many rounds are there in Amazon SDE (Software Development Engineer) interview?
Amazon interview process usually has 2-3 rounds. The most common rounds in the Amazon interview process are Coding Test, Technical and One-on-one Round.
What are the top questions asked in Amazon SDE (Software Development Engineer) interview?

Some of the top questions asked at the Amazon SDE (Software Development Engineer) interview -

  1. Write a program to calculate the sum of level order t...read more
  2. Alien Dictionary with slight modification to sort list of words with some rando...read more
  3. Maximum continous sum in an array of integ...read more

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Amazon SDE (Software Development Engineer) Interview Process

based on 2 interviews

3 Interview rounds

  • Technical Round - 1
  • Technical Round - 2
  • Aptitude Test Round
View more

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Amazon SDE (Software Development Engineer) Salary
based on 682 salaries
₹17 L/yr - ₹60 L/yr
41% more than the average SDE (Software Development Engineer) Salary in India
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Amazon SDE (Software Development Engineer) Reviews and Ratings

based on 69 reviews

3.8/5

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3.2

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4.2

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3.0

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3.6

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3.7

Promotions

3.5

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