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Amazon SDE Interview Questions, Process, and Tips
Top Amazon SDE Interview Questions and Answers
- Q1. There is a 12 km road and a contractor who is in-charge of repairing it. Contractor updates you about the work which is done in patches. Like “Road between 3.2 km to 7.9 ...read more
- Q2. There are n nuts and n bolts represented in two different arrays and a function is_fit(nut_i, bolt_j) which returns 0 if its perfectly fit, 1 if it’s a tight fit and -1 i ...read more
- Q3. A stream of data is coming. Maintain records in a page and mechanism to see previous and next page. (Concept of Doubly Linked List) (It is always advisable to ask questio ...read more
Amazon SDE Interview Experiences
44 interviews found
Anonymous
Interview Questionnaire
14 Questions
- Q1. There is a 12 km road and a contractor who is in-charge of repairing it. Contractor updates you about the work which is done in patches. Like “Road between 3.2 km to 7.9 km repaired ”, “Road between 1.21 k...
- Ans.
The longest continuous patch of a road being repaired by a contractor is determined.
Iterate through the updates and keep track of the start and end points of each patch
Calculate the length of each patch and update the longest patch if necessary
Return the start and end points of the longest patch
- Q2. Several Questions were asked from my project
- Q3. There are billions and billions of stars and at any point of time you need to tell the closest million to earth. In what way I should take input for the stars and what all do I need to represent one. I use...
- Q4. Implementation of Least Recently Used Cache. I started with O(n) solution using queue and ended up with O(1) solution using heap and doubly linked list
- Q5. Basically it was from snakes and ladders game. There is n x n matrix and you are at starting position. What is the no. of ways to reach n-square position if your next move will be dependent on number on di...
- Q6. Write an efficient program to count number tree structures that can be made using n number of nodes. Basically T(n)=summation (T(i) * T(n-i-1)). I used DP as there are a lot of sub-problems used again and ...
- Ans.
The program counts the number of tree structures that can be made using n nodes.
Use dynamic programming to solve the problem efficiently
Break down the problem into subproblems and store their solutions in an array
Iterate through the array to calculate the number of tree structures
The time complexity of the program is O(n^2)
- Q7. There are n nuts and n bolts represented in two different arrays and a function is_fit(nut_i, bolt_j) which returns 0 if its perfectly fit, 1 if it’s a tight fit and -1 if its loose fit. I was asked to arr...
- Ans.
Arrange nuts and bolts so that every nut fits perfectly with the bolt in the same position.
Sort both arrays in the same order using a comparison function
Use a binary search to find the matching bolt for each nut
Repeat until all nuts are matched with bolts
- Q8. Find the kth largest element in a BST. Well that was easy JWe discussed about projects and he asked reasons for leaving present company
- Q9. How to know the time between someone writes Amazon.com and the page appears on his browser for a particular user. I impressed him by suggesting to use dummy request packets after the page is loaded complet...
- Q10. He showed me the Amazon page they were working at that time and I asked me to suggest 5 changes in 5 minutes
- Q11. Behavioral questions like dealing with manager in case of conflicts,
- Q12. Why would you choose Amazon and not Flipkart if you have offers from both
- Q13. About my projects and contribution to present company
- Q14. Reasons for leaving present company, ,
- Ans.
Seeking new challenges and growth opportunities
Desire for career advancement
Limited growth opportunities in current role
Seeking new challenges and learning experiences
Interview Preparation Tips
Experience: Q1. Given a string you need to print all possible strings that can be made by placing spaces (zero or one) in between them. For example : ABC -> A BC, AB C, ABC, A B CQ2. Given a tree where there are three pointers (left_pointer, right_pointer and a next_right_pointer). Left and right pointers are set like that of any general binary tree. We were asked to set the next_right_pointer to the next node in the level order traversal for the same level. This implies means for the last node in every level it will be null for rest it will be pointer to the next node in level order traversal.
Duration: 60 minutes
Total Questions: 2
General Tips: TIPS:1. Don’t jump into solutions, ask about the type of input that is given and output that is expected.2. The interviewer always tries to take you to the most optimal solution so listen to what all he says. Many a times they are big hints !!!3.Be honest.4. Keep believing that you will get the job .
College Name: NA
Skills evaluated in this interview
Selected
I applied via Referral and was interviewed in Dec 2024. There were 2 interview rounds.
OA consisted of two DSA questions.
(1 Question)
- Q1. Was asked dsa based questions.
Vijayalakshmi Chidambaram
(2 Questions)
- Q1. General behavioral kinda questions on my last project
- Q2. LLD question where coding in 30 mins
What people are saying about Amazon
Selected
I applied via LinkedIn and was interviewed in Nov 2024. There were 3 interview rounds.
Simple Normal DSA Question
Focus on DSA and optimization
Project Discussion and some Date structure questions
Interview Preparation Tips
Amazon interview questions for designations
Selected
Good DSA Questions
Recursion, Graph and Tree
Get interview-ready with Top Amazon Interview Questions
I applied via Company Website and was interviewed in Aug 2024. There were 2 interview rounds.
(2 Questions)
- Q1. String pattern matching
- Q2. Behavioral questions
(2 Questions)
- Q1. Behavioral questions
- Q2. BFS file system
SDE Jobs at Amazon
There are two straightforward data structure and algorithm questions, while the others primarily consist of multiple-choice questions, mostly focusing on nodes and Python.
In the telephonic round, they primarily assess your problem-solving skills. The interviewer asked me a binary search question, which I was able to solve, but it took me a considerable amount of time to arrive at the solution. This was likely the main reason for my rejection.
Aryan Verma
Selected
I applied via Naukri.com and was interviewed in Sep 2024. There was 1 interview round.
Find the order of excecution in sql
Interview Preparation Tips
Yatharth Singh
I applied via LinkedIn and was interviewed in Nov 2024. There was 1 interview round.
It was a one hour DS Algo Round based on recursion and DP. I managed to get to the logic for the problem but couldn't execute compltely due to time constraints
I applied via Naukri.com and was interviewed in May 2024. There were 2 interview rounds.
HACKER RANK TEST WITH MEDIUM LEVEL QUESTIONS
(3 Questions)
- Q1. CREATE A LINKED LIST
- Ans.
A linked list is a data structure consisting of nodes where each node points to the next node in the sequence.
Create a Node class with data and next pointer
Initialize a head pointer to null
Add nodes by updating next pointers
- Q2. FIND THE LOOP IN LINKED LIST
- Ans.
To find a loop in a linked list, use Floyd's Tortoise and Hare algorithm.
Use two pointers, slow and fast, to traverse the linked list.
If there is a loop, the two pointers will eventually meet at the same node.
To find the start of the loop, reset one pointer to the head and move both pointers at the same pace.
- Q3. QUESTION BASED ON DYNAMIC PROGRAMMING
Interview Preparation Tips
- Data Structures
- Algorithms
- Java
Skills evaluated in this interview
Selected
I applied via Company Website and was interviewed in Jul 2024. There were 5 interview rounds.
SLiding window problem
Tree problem variation
DP Problems same questions but with different cases
(2 Questions)
- Q1. Experience with last company
- Ans.
I worked at a tech startup where I developed web applications and implemented new features.
Led a team of developers to successfully launch a new mobile app
Implemented a new payment gateway system to improve user experience
Collaborated with product managers to prioritize and deliver features on time
- Q2. How you handle pressure
- Ans.
I handle pressure by staying organized, prioritizing tasks, and taking breaks when needed.
I prioritize tasks based on deadlines and importance
I break down large tasks into smaller, manageable steps
I communicate with team members or supervisors if feeling overwhelmed
I practice mindfulness techniques like deep breathing or meditation to stay calm
(1 Question)
- Q1. Behavioural ROund
Amazon Interview FAQs
Some of the top questions asked at the Amazon SDE interview -
The duration of Amazon SDE interview process can vary, but typically it takes about less than 2 weeks to complete.
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Amazon Interviews By Designations
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Interview Questions for Popular Designations
Amazon SDE Interview Process
based on 35 interviews
4 Interview rounds
- Coding Test Round - 1
- Technical Round - 1
- Coding Test Round - 2
- Technical Round - 2
SDE Interview Questions from Similar Companies
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Amazon SDE Reviews and Ratings
based on 26 reviews
Rating in categories
|
Customer Service Associate
4.2k
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|  ₹0.6 L/yr - ₹5 L/yr |
|
Transaction Risk Investigator
3.1k
salaries
| ₹2 L/yr - ₹6.5 L/yr |
|
Associate
2.8k
salaries
| ₹0.8 L/yr - ₹6.6 L/yr |
|
Senior Associate
2.5k
salaries
| ₹2.2 L/yr - ₹10 L/yr |
|
Program Manager
2.1k
salaries
| ₹9 L/yr - ₹36 L/yr |
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