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Updated weekly · Last refresh Sep 19

Amazon Backend Engineer Interview Questions

The questions to prepare for a Amazon Backend Engineer interview. Questions from real interview reports rank first. Updated daily.

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1
CodingStart here. 22 questions · ~341 min
Number of IslandsMedium
Practice

Count four-directionally connected islands in a binary grid using graph traversal.

ArraysbfsAlgorithmsAmazon
Create a movie database backend debug taskHard
Practice

Implement stateful watch-list handlers with authorization, validation, persistence, and correct HTTP-style responses.

clean codedata persistenceapiAmazon
Algorithm: Form rectangles from array elementsMedium
Practice

Sort stick lengths, pair equal or reducible values, form rectangles, and return the total area.

ArraysArray ManipulationAlgorithmsAmazon
Algorithm: Generate unique permutationsHard
Practice

Generate every distinct string permutation once using a frequency map and backtracking.

deduplicationcombinatoricsAlgorithmsAmazon
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2
System Design22 questions · ~341 min
System design: account deletion across AmazonHard

Design a reliable, auditable workflow that deletes an Amazon account and propagates the request across Amazon services.

backend integrationdata securitydistributed systemsAmazon
Online Photo Sharing SystemHard

Design an online photo sharing application with scalable media storage, personalized discovery, and ML-powered content safety.

ML Rankingdistributed systemsdesignAmazon
Chat Application ArchitectureHard

Design an end-to-end chat application with reliable messaging, low-latency delivery, and ML-powered safety and assistance.

distributed systemsnotification systemml inferenceAmazon
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3
Behavioral & Leadership6 questions · ~93 min
Describe a Time You Disagreed with a ManagerEasy

Tests conflict resolution, coachability, and ownership when receiving negative feedback or disagreeing with a leader.

behavior under pressureaccountabilitybehavioralAmazon
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