Amazon Interview Questions for Software Engineer

I applied for a software engineer position at Amazon. The process started with an online assessment on HackerRank or Amazon Chime, which lasted 70-90 minutes. The topics covered were arrays, strings, hash maps, BFS/DFS. I encountered questions like determining if a person can attend all meetings given intervals, designing a rate limiter for 100 requests per minute per user, calculating edit distance between two strings, and serializing/deserializing a binary tree.

The technical phone screen was 45-60 minutes long, focusing on problem-solving and code optimization. I faced questions like finding the shortest path in a matrix while avoiding 1s (solved using BFS) and merging k sorted linked lists (using a min-heap). The onsite interviews consisted of 4-5 rounds, including coding rounds with LeetCode-style medium/hard questions, a system design round on a parking lot system, a behavioral round based on the STAR format and Amazon Leadership Principles, and a bar raiser round that delved deeply into technical and behavioral skills. I was offered the position.