Amazon Interview Questions

73 questions across 5 categories

Algorithms

View all Algorithms

Maximum Product Subarray

Medium

Product of Array Except Self

Medium

Count Primes

Medium

Longest Palindrome

Easy

Decode Ways II

Hard

Serialize and Deserialize BST

Medium

Number of Islands

Medium

Shortest Path in Binary Matrix

Medium

Longest Substring Without Repeating Characters

Medium

Merge k Sorted Lists

Hard

Counting Bits

Medium

Maximum Swap

Medium

Cheapest Flights Within K Stops

Medium

Best Time to Buy and Sell Stock (I)

Easy

Behavioral

View all Behavioral

Going Above and Beyond

Easy

Dealing with Unexpected Downtime

Hard

Tell me about a time you failed

Medium

Most Significant Failure as a Leader

Hard

Dealing with Lack of Resources

Medium

Handling Team Member Conflict Over Strategy

Medium

Experience with Monolith to Microservices

Hard

Handling Repetitive Tasks

Easy

What Demotivates You

Easy

Your Approach to Risk Assessment

Medium

Handling a Security Vulnerability

Medium

Handling Last-Minute Requirement Change

Medium

Reacting to a Crisis

Hard

Dealing with Ambiguity

Medium

Data Structures

View all Data Structures

Intersection of Two Arrays II (Hash Map)

Easy

Reverse a Linked List

Easy

Remove Duplicates from Sorted List

Easy

Level Order Traversal of a Binary Tree

Easy

Flatten Binary Tree to Linked List (In-place)

Medium

Implement a Circular Linked List

Medium

Remove Duplicates from Sorted List II

Medium

Remove Zero Sum Consecutive Nodes from Linked List

Medium

Delete Node in a BST

Medium

Implement a Singly Linked List

Easy

Implement HashMap with Separate Chaining

Hard

Design a File System (Hash Map and Set)

Medium

Minimum Depth of Binary Tree

Easy

Find the Middle of a Linked List

Easy

Convert Sorted Array to Binary Search Tree

Medium

Product Strategy

View all Product Strategy

Design a 'Trusted Buyer' Reputation Score for E-commerce

Medium

Design a Feature to Detect Fake Reviews

Hard

Metrics for Cross-Sell Success

Medium

Improve Customer Support Experience via Product

Medium

Trade-offs: Data Freshness vs. Query Latency

Medium

Should Amazon enter the high-end luxury retail market?

Hard

Should Amazon launch a physical bank?

Hard

Metrics for API Ecosystem Health

Medium

Design a Feature to Reduce Shopping Cart Abandonment

Medium

Improve the Discovery of Independent Sellers on Amazon

Medium

Product Strategy for a Loyalty/Rewards Program

Medium

Metrics for Live Shopping on Amazon

Medium

System Design

View all System Design

Design a CDN Edge Caching Strategy

Medium

Design a Key-Value Store (Distributed Cache)

Hard

Design a Fraud Detection System for Reviews/Ratings

Hard

Design an Autocomplete/Type-Ahead Service

Medium

Design a Distributed File System (HDFS/S3)

Hard

Design an Inventory Management System

Medium

Design a Serverless Data Processing System (AWS Lambda/Azure Functions)

Medium

Design an Inventory Reservation System

Medium

Design a System for E-commerce Search Filtering

Medium

Design a System for Monitoring E-commerce Price Changes

Medium

Discuss Optimistic vs. Pessimistic Locking

Easy

Design a Shopping Cart Service

Easy

Design an Online Bookstore/E-commerce Catalog

Medium

Design a Service for Real-time Analytics

Hard

Design a System for Data Sharding and Indexing

Hard

Design a Distributed Search Service (Elasticsearch)

Hard

Design a Distributed Queue (Kafka/SQS)

Medium

Design a Disaster Recovery Plan

Medium

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