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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
Selected
I applied via Company Website and was interviewed in Nov 2023. There were 2 interview rounds.
Bag question and BFS map question
(1 Question)
- Q1. Explain the bigO of OA
- Ans.
BigO of OA refers to the time complexity analysis of the algorithm OA.
BigO notation is used to describe the worst-case time complexity of an algorithm.
It provides an upper bound on the growth rate of the algorithm's time complexity as the input size increases.
For example, if an algorithm has a time complexity of O(n^2), it means that the algorithm's running time grows quadratically with the input size.
Interview Preparation Tips
Skills evaluated in this interview
(1 Question)
- Q1. Self introduction
Online assessment with about 3 questions
Onsite 4 rounds of interviews. Each round with bq and coding or design questions
It was good Leetcode medium
(1 Question)
- Q1. LRU cache was asked
What people are saying about Amazon
Kushagra Sahni
I applied via campus placement at Birla Institute of Technology and Science (BITS), Pilani and was interviewed in Sep 2022. There were 3 interview rounds.
2 coding questions were asked based on arrays. They were of easy-medium difficulty. After the coding test, there was a general section where you had to answer situational questions about your personality or how you would approach a work related problem.
(2 Questions)
- Q1. Given two linked lists, one i/p and one o/p, identify the pattern in them and code the logic. It was a reversal of the two halves of a linked list problem.
- Ans.
Reversing two halves of a linked list problem
Identify input and output linked lists
Reverse the two halves of the input linked list
Compare the reversed input linked list with the output linked list
If they match, return true else false
- Q2. A sliding window problem where we had to minimise the partial sum of the array.
- Ans.
Sliding window problem to minimize partial sum of array.
Use two pointers to maintain the window.
Move the right pointer to expand the window and left pointer to shrink it.
Keep track of the minimum partial sum seen so far.
Example: Given array [2, 3, 1, 2, 4, 3] and window size 3, the minimum partial sum is 6.
Interview Preparation Tips
Skills evaluated in this interview
Amazon interview questions for designations
I applied via Campus Placement and was interviewed before Oct 2022. There were 3 interview rounds.
Online aptitude test with some behaviour questions. Take this very seriously.
1. Top k elements in the stream of data. 2. Some DP related questions based on probability of m coins having probability of head being p.
Interview Preparation Tips
Get interview-ready with Top Amazon Interview Questions
Selected
I applied via campus placement at Indian Institute of Technology (IIT), Delhi and was interviewed before Apr 2023. There were 3 interview rounds.
I was asked to write a code for length of the longest alternating (one positive number followed by one negative number) subsequence of in an array.
I was asked to write a code to find all the points with minimum distance from the origin.
(1 Question)
- Q1. I was given a C++ code and asked to identify problems with the code, and also identify ways to make it more efficient. Also couple of behavioral questions.
Interview Preparation Tips
SDE Jobs at Amazon
Selected
I applied via Company Website and was interviewed before Mar 2023. There were 2 interview rounds.
Greedy Method leetcode easy question; 1 medium same type
(2 Questions)
- Q1. Greedy method question from leetcode
- Q2. Review of coding assessment questions
Selected
I applied via Company Website and was interviewed before Mar 2023. There were 3 interview rounds.
Basic coding topics like LL, TREE traversal
(1 Question)
- Q1. Graphs with BFS, DFS
- Ans.
BFS and DFS are algorithms used to traverse graphs.
BFS (Breadth-First Search) explores all neighbor nodes at the present depth prior to moving on to nodes at the next depth level.
DFS (Depth-First Search) explores as far as possible along each branch before backtracking.
BFS uses a queue data structure, while DFS uses a stack or recursion.
Example: BFS can be used to find the shortest path in an unweighted graph, while DF
(1 Question)
- Q1. 1 hard array problem and internship experience
- Ans.
I solved a hard array problem during my internship and gained valuable experience.
During my internship, I was tasked with optimizing a program that involved manipulating arrays of strings.
I used various data structures and algorithms to efficiently solve the problem, such as hash maps and sorting techniques.
One specific example of a hard array problem I worked on was implementing a word search algorithm using a 2D arra
Skills evaluated in this interview
I applied via Referral and was interviewed before Sep 2022. There were 4 interview rounds.
Hackerrank advance data structures questions
Face 2 face coding interview
(5 Questions)
- Q1. JAVA and JavaScript questions
- Q2. Spring is immutable or mutable
- Ans.
Spring is immutable
Spring framework is immutable
Once a Spring bean is created, its state cannot be changed
Any modifications to a Spring bean result in a new instance being created
- Q3. Angular JS and React JS difference
- Ans.
Angular JS is a full-fledged framework while React JS is a library for building user interfaces.
Angular JS is a full-fledged MVC framework with two-way data binding, while React JS is a library for building user interfaces using components.
Angular JS uses HTML templates with additional markup, while React JS uses JSX for rendering components.
Angular JS has a steep learning curve due to its complexity, while React JS is...
- Q4. Tower of hanoi questions
- Q5. Data structures and algorithm questions
Interview Preparation Tips
Skills evaluated in this interview
I applied via AmbitionBox and was interviewed in Jul 2022. There were 2 interview rounds.
Round 1 - medium leetcode questions
(1 Question)
- Q1. Technical interview just revise the basic concepts and be yourself
Interview Preparation Tips
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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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
salaries
|  ₹0.6 L/yr - ₹6.8 L/yr |
|
Transaction Risk Investigator
3.1k
salaries
| ₹2.3 L/yr - ₹6.5 L/yr |
|
Associate
2.8k
salaries
| ₹0.8 L/yr - ₹6.9 L/yr |
|
Senior Associate
2.5k
salaries
| ₹2 L/yr - ₹10.1 L/yr |
|
Program Manager
2.3k
salaries
| ₹9 L/yr - ₹36 L/yr |
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