Amazon Interview Questions (2026)

136 questions across 11 categories · Updated April 2026

Amazon interviews are structured around their 14 Leadership Principles. Every round — including technical rounds — expects you to demonstrate principles like Customer Obsession, Ownership, and Deliver Results through behavioral examples. Technical rounds cover DSA and system design, with a strong emphasis on scalable backend architecture.

Algorithms

Maximum Product Subarray

Product of Array Except Self

Count Primes

Longest Palindrome

Decode Ways II

Serialize and Deserialize BST

Number of Islands

Shortest Path in Binary Matrix

Longest Substring Without Repeating Characters

Merge k Sorted Lists

Counting Bits

Maximum Swap

Cheapest Flights Within K Stops

Best Time to Buy and Sell Stock (I)

Analytical

How do you prioritize time management when addressing customer problems?

Tell me about a time you used data to solve a problem?

What were the questions related to your previous company and market strategies?

Behavioral

Going Above and Beyond

How do you prioritize tasks in a high-pressure environment?

Dealing with Unexpected Downtime

Can you describe a challenging project you worked on previously?

Tell me about a time you failed

Most Significant Failure as a Leader

Dealing with Lack of Resources

Handling Team Member Conflict Over Strategy

Experience with Monolith to Microservices

Why should we hire you for this position?

Can you describe an instance when you took initiative without manager approval?

What is the most challenging problem you solved recently?

How do you describe a challenging project you worked on previously?

Handling Repetitive Tasks

What Demotivates You

Describe a time you disagreed with a manager.

Why do you want to work at Amazon specifically?

What motivates you to do your best work?

Tell me about yourself and your relevant experience.

What are your strengths and weaknesses?

Your Approach to Risk Assessment

Handling a Security Vulnerability

Handling Last-Minute Requirement Change

Reacting to a Crisis

Dealing with Ambiguity

Coding

How do you add two numbers represented by linked lists?

Can you find a triplet such that a squared equals b squared plus c squared?

How do you implement a stack with push pop and min operations in constant time?

How do you reverse a linked list in groups of size k?

How can you implement a stack with push, pop, and min operations in constant time?

How do you convert a binary tree into a doubly linked list?

Data Structures

Intersection of Two Arrays II (Hash Map)

Reverse a Linked List

Remove Duplicates from Sorted List

Level Order Traversal of a Binary Tree

Flatten Binary Tree to Linked List (In-place)

Implement a Circular Linked List

Remove Duplicates from Sorted List II

Remove Zero Sum Consecutive Nodes from Linked List

What are the different types of binary tree traversals and when to use them?

How would you implement a stack with push, pop, and min in O(1) time?

Delete Node in a BST

Implement a Singly Linked List

Implement HashMap with Separate Chaining

Design a File System (Hash Map and Set)

Minimum Depth of Binary Tree

Find the Middle of a Linked List

Convert Sorted Array to Binary Search Tree

DSA

How do you find a triplet where a squared equals b squared plus c squared?

How do you find the K largest elements from a large file?

What is the stock span problem and how do you solve it efficiently?

How do you rotate a matrix by 90 degrees clockwise?

How do you find the maximum sum subarray with no consecutive elements?

How do you find the next greater element for each element in an array?

How do you calculate the lowest common ancestor in a binary tree?

How do you calculate the edit distance between two strings?

How do you find the lowest common ancestor in a binary search tree?