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Amazon Software Developer Intern Interview Questions, Process, and Tips
Top Amazon Software Developer Intern Interview Questions and Answers
- Q1. Fish Eater There is a river which flows in one direction. One day, the river has 'N' number of fishes. You are given an array 'FISHES' of integers representing the size o ...read more
- Q2. Longest Increasing Subsequence For a given array with N elements, you need to find the length of the longest subsequence from the array such that all the elements of the ...read more
- Q3. Kth Smallest and Largest Element of Array You are given an array ‘Arr’ consisting of ‘N’ distinct integers and a positive integer ‘K’. Find out Kth smallest and Kth large ...read more
95 Amazon Software Developer Intern Interview Experiences
312 questions found
CodingNinjas
I was interviewed in Apr 2021.
3 Interview Rounds
Coding Test Round (1 Question)
Round duration - 60 minutes
Round difficulty - Hard
- Q1. Two Sum You are given an array of integers 'ARR' of length 'N' and an integer Target. Your task is to return all pairs of elements such that the...read more View Answers (1)
Video Call Round (1 Question)
Round duration - 60 minutes
Round difficulty - Medium
- Q1. Rotting Oranges You have been given a grid containing some oranges. Each cell of this grid has one of the three integers values: Value 0 - representing an empty...read more View Answers (2)
Video Call Round (1 Question)
Round duration - 60 minutes
Round difficulty - Easy
- Q1. Power Set You are given a sorted array of 'N' integers. You have to generate the power set for this array where each subset of this power set is individ...read more View Answers (3)
Interview Preparation Tips
Tip 1 : Be consistent
Tip 2 : Be dedicated
Tip 3 : Concepts should be crystal clear.
Tip 1 : Make projects
Tip 2 : Write only what you know.
Skills evaluated in this interview
Anonymous
Selected
I applied via Amazon and was interviewed before Sep 2022.
3 Interview Rounds
Resume Shortlist Round
Coding Test Round
2 Leetcode Medium at best, probably 1 easy 1 med.
One-on-one Round (1 Question)
- Q1. Leetcode easy about array Add Answer
Get interview-ready with top interview questions
I was interviewed in Jan 2021.
3 Interview Rounds
Coding Test Round (2 Questions)
Round duration - 60 minutes
Round difficulty - Hard
This round was carried out on Amcat. It was very user friendly platform and easily understandable. Countdown Timer was located at the top right corner that helped me to keep a check on the remaining time and I planned my answers and code accordingly.
- Q1. Position of Right Most Set Bit You are given a number N. You need to return the position of the rightmost set bit. For example: If the given number is 10 with t...read more View Answers (3)
- Q2. NINJA'S JUMP Ninja is assigned a task to reach the last stone by his master. These stones are numbered with some value and in the form of an array. He is allowe...read more View Answers (3)
Telephonic Call Round (2 Questions)
Round duration - 50 minutes
Round difficulty - Hard
This round was held on Amazon chime which is Amazon's video conferencing app.
- Q1. Count Ways To Reach The N-th Stairs You have been given a number of stairs. Initially, you are at the 0th stair, and you need to reach the Nth stair. Each time ...read more View Answers (4)
- Q2. Puzzle camel and banana puzzle A person has 3000 bananas and a camel. The person wants to transport the maximum number of bananas to a destination which is 1000...read more Add Answer
HR Round (1 Question)
Round duration - 40 minutes
Round difficulty - Easy
It was fun talking with the interviewer. we both enjoyed each other company and had discussions on several things.
- Q1. Basic HR Questions Are you willing to relocate or travel? What do you know about us or our company? How long do you think you will work for us after...read more View Answers (1)
Interview Preparation Tips
Tip 1 : solve all the must do questions available at GeeksforGeeks
Tip 2 : having a team project will give you an edge over others
Tip 3 : practice regularly on Codechef and Codeforces and build up good profiles
Tip 4: if you are a fresher, then placement preparation course from coding ninjas can really help you in short span of time
Tip 1 : technical skills mentioned in the resume should be on your tips
Tip 2 : having a team project will give you an edge over others
Tip 3 : put the links of your competitive profiles in your resume, then your stats speak loud about your skill set
What people are saying about Amazon
I was interviewed in Jan 2021.
2 Interview Rounds
Coding Test Round (2 Questions)
Round duration - 70 minutes
Round difficulty - Medium
- Q1. Check if Linked List is Palindrome You are given a Singly Linked List of integers. You have to find if the given linked list is palindrome or not. A List is a p...read more View Answers (3)
- Q2. Merge Two Sorted Linked Lists You are given two sorted linked lists. You have to merge them to produce a combined sorted linked list. You need to return the hea...read more View Answers (2)
Video Call Round (2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
- Q1. Palindrome Partitioning You are given a string 'S'. Your task is to partition 'S' such that every substring of the partition is a palindrome. Yo...read more View Answers (1)
- Q2. DBMS Question
Describe the ACID properties in DBMS.
Add Answer
Interview Preparation Tips
Tip 1 : Prepare minimum 2-3 good projects and understand those projects thoroughly. Have in-depth understanding and confidence over Data Structures and get maximum insight of its concepts. Ensure to have complete understanding working of these projects and what logic has been implemented with-in project
Tip 2 : While resolving a problem, ensure to keep an eye on time and space complexity. Work on the strategies to optimize the solution.
Tip 3 : Practice more on reasoning and aptitude questions.
Tip 1 : Mention only and only those projects, skills and achievements in which you have complete and thorough knowledge. Most of the question will be around these and in case if you are unable to answer these questions it leaves a bad impression on the interviewer.
Tip 2 : Do not add too many projects. Add only one or two good projects in which you have proper knowledge.
Tip 3 : Resume should not be more than 1 page and try to keep only those details in resume in which you find yourself more comfortable.
Skills evaluated in this interview
Amazon interview questions for designations
I was interviewed in Jan 2021.
2 Interview Rounds
Coding Test Round (2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
- Q1. Search in a row wise and column wise sorted matrix You are given an N * N matrix of integers where each row and each column is sorted in increasing order. You a...read more View Answers (3)
- Q2. Number of Pairs with Given Sum You have been given an integer array/list(arr) and a number 'Sum'. Find and return the total number of pairs in the array...read more View Answers (3)
Video Call Round (2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
- Q1. Fire in the cells. You are given a matrix 'MAT' of size ‘N’ * ‘M’, where ‘N’ is the number of rows and ‘M’ is the number of columns. Value ‘0’ in a cell...read more View Answers (1)
- Q2. OS Questions
The below two questions of operating systems were discussed: -
1. What is thrashing?
2. Explain the Round Robin Scheduling algorithm?Add Answer
Interview Preparation Tips
Tip 1 : Be confident. Develop minimum 2-3 projects and know those projects completely.
Tip 2 : Practice DSA at-least 200 questions and Algo.
Tip 3 : Practice aptitude and reasoning questions.
Tip 1 : Mention only those skills, projects or achievements in which you have thorough knowledge.
Tip 2 : Add only one or two good projects in which you have in-depth knowledge. Also do the same for skills, do not add many skills.
Tip 3 : Mention only those achievements which showcase your technical skills, communication skills or teamwork spirit.
Skills evaluated in this interview
I was interviewed in Jan 2021.
2 Interview Rounds
Coding Test Round (2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
- Q1. Add Linked Lists Given two numbers represented by linked lists. Your task is find the sum list and return the head of the sum list. The sum list is a linked lis...read more View Answers (2)
- Q2. Check if Linked List is Palindrome You are given a Singly Linked List of integers. You have to find if the given linked list is palindrome or not. A List is a p...read more View Answers (3)
Video Call Round (2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
- Q1. Square root (decimal) You have been given two integers 'N' and 'D', Your task is to find the square root of the number 'N' with precisio...read more View Answers (2)
- Q2. Alien dictionary You have been given a sorted (lexical order) dictionary of an alien language. Write a function that finds the order of characters in the alien ...read more View Answers (2)
Interview Preparation Tips
Tip 1 : The most fundamental and important thing to prepare are Data Structures and Algorithms. Be very much clear on your basics and skills.
Tip 2 : Revise OOPS thoroughly.
Tip 3 : Practice DSA (minimum 200), aptitude and reasoning questions regularly.
Tip 1 : The resume should not be more than 1 page. Be brief and write only those skills, projects or achievements which you have completed yourselves and have thorough knowledge. Avoid unnecessary details like hobbies, parent's name, photo, etc.
Tip 2 : Add a link to your LinkedIn, GitHub, website etc.
Skills evaluated in this interview
I was interviewed in Jan 2021.
3 Interview Rounds
Coding Test Round (1 Question)
Round duration - 50 Minutes
Round difficulty - Medium
- Q1. Maximal AND Subsequences You are given an array consisting of N integers. You need to find the number of k-element subsequences of the given array where the bit...read more View Answers (2)
Coding Test Round (1 Question)
Round duration - 50 Minutes
Round difficulty - Easy
- Q1. OS Question
What are semaphores?
Add Answer
Coding Test Round (1 Question)
Round duration - 50 Minutes
Round difficulty - Easy
- Q1. OS Question
What is virtual memory?
Add Answer
Interview Preparation Tips
Tip 1 : Practice Atleast 250 Questions
Tip 2 : Do atleast 2 projects
Tip 1 : Have some projects on resume.
Tip 2 : Do not put false things on resume.
Skills evaluated in this interview
I was interviewed in Dec 2020.
3 Interview Rounds
Coding Test Round (2 Questions)
Round duration - 70 Minutes
Round difficulty - Easy
It was on Amcat , test was of 70 mins as far as I remember, timing was flexible , we were given a slot to attempt.
- Q1. Search In A Row Wise And Column Wise Sorted Matrix You are given an N * N matrix of integers where each row and each column is sorted in increasing order. You a...read more View Answers (3)
- Q2. Subtree of Another Tree Given two binary trees T and S, check whether tree S has exactly the same structure and node values with a subtree of T, i.e., check if ...read more View Answers (3)
Video Call Round (2 Questions)
Round duration - 50 Minutes
Round difficulty - Medium
It was a virtual interview.
Happend at 1 pm .
Two interviewers were there.
The platform was Chime ( Amazon's internal tool )
There was no language support, just a text editor and no facility to run the code.
- Q1. N queens You are given an integer 'N'. For a given 'N' x 'N' chessboard, find a way to place 'N' queens such that no queen can a...read more View Answers (2)
- Q2. Time To Burn Tree You have been given a binary tree of 'N' unique nodes and a Start node from where the tree will start to burn. Given that the Start no...read more View Answers (2)
Video Call Round (1 Question)
Round duration - 50 Minutes
Round difficulty - Medium
It happened the same day at 4pm
Same environment, same chime link .
Two interviewers were there.
They jumped right into Coding question without any intro and discussion.
- Q1. Bottom View Of Binary Tree Given a binary tree, print its bottom view from left to right. Assume, the left and the right child make a 45-degree angle with the p...read more View Answers (3)
Interview Preparation Tips
Tip 1 : Time management as OA is very much dependent on speed
Tip 2 : Preparing Famous questions beforehand
Tip 3 : Mock interviews to improve communication
Tip 1 : Good format to utilize maximum space tidily
Tip 2 : Mention projects with tech stack underlined and along with live links
Skills evaluated in this interview
I was interviewed in Dec 2020.
2 Interview Rounds
Coding Test Round (2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
- Q1. Check If Linked List Is Palindrome You are given a Singly Linked List of integers. You have to find if the given linked list is palindrome or not. A List is a p...read more View Answers (3)
- Q2. Total unique paths You are present at point ‘A’ which is the top-left cell of an M X N matrix, your destination is point ‘B’, which is the bottom-right cell of ...read more View Answers (4)
Video Call Round (2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
- Q1. Square root (decimal) You have been given two integers 'N' and 'D', Your task is to find the square root of the number 'N' with precisio...read more View Answers (2)
- Q2. DBMS Question
Explain ACID properties.
Add Answer
Interview Preparation Tips
Tip 1 : Gain in-depth understanding and confidence in Data Structures and get maximum insight of its concepts. Prepare minimum 2-3 projects and go through those projects completely. Have complete understanding and knowledge of how these project works and what logic has been implemented.
Tip 2 : Keep an eye on time and space complexity while attempting the questions.
Tip 3 : Practice more on reasoning questions and aptitude related questions.
Tip 1 : The resume should not be more than 1 page. Write only those skills, projects or achievements which you have completed yourselves and have thorough knowledge and ensure to write in brief and crisp only. Avoid unnecessary details like parent's name, photo, hobbies etc.
Tip 2 : Add a link to your GitHub, website, LinkedIn, were you can provide more details about you.
Skills evaluated in this interview
I was interviewed in Dec 2020.
3 Interview Rounds
Coding Test Round (3 Questions)
Round duration - 60 Minutes
Round difficulty - Easy
3 coding questions and the duration of the test was 90 mins
- Q1. Merge Two Sorted Linked Lists You are given two sorted linked lists. You have to merge them to produce a combined sorted linked list. You need to return the hea...read more View Answers (2)
- Q2. Rat In A Maze You are given a starting position for a rat which is stuck in a maze at an initial point (0, 0) (the maze can be thought of as a 2-dimensional pla...read more View Answers (1)
- Q3. Two Sum You are given an array of integers 'ARR' of length 'N' and an integer Target. Your task is to return all pairs of elements such that the...read more View Answers (1)
Video Call Round (3 Questions)
Round duration - 60 Minutes
Round difficulty - Easy
- Q1. Longest Increasing Subsequence For a given array with N elements, you need to find the length of the longest subsequence from the array such that all the elemen...read more View Answers (4)
- Q2. Boundary Traversal You have been given a binary tree of integers. Your task is to print the boundary nodes of this binary tree in Anti-Clockwise direction start...read more View Answers (1)
- Q3. Spiral Matrix You are given a N x M matrix of integers, return the spiral path of the matrix Example Of Spiral Path Input Format: The first line contains an int...read more View Answers (2)
Video Call Round (2 Questions)
Round duration - 50 Minutes
Round difficulty - Medium
This was the last round, which consists of some basic hr questions and theory questions.
- Q1. OS Questions
Threads vs process
What is operating system
memory managementAdd Answer - Q2. DMBS Questions
Normal forms
SQL queries
Add Answer
Interview Preparation Tips
Tip 1 : Single page resume but brief
Tip 2 : Be calm and confident
Tip 3 : Solve previous interview questions of Amazon
Tip 1 : Don't make resume too lengthy.
Tip 2 : Mention your achievements in resume if any
Skills evaluated in this interview
Amazon Interview FAQs
The duration of Amazon Software Developer Intern interview process can vary, but typically it takes about 2-4 weeks to complete.
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Interview Process at Amazon Software Developer Intern
based on 30 interviews in last 1 year
2 Interview rounds
- Coding Test Round
- Technical Round
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