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Amazon Development Center U.S. Software Engineer Interview Questions

The questions to prepare for a Amazon Development Center U.S. Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

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1
CodingStart here. 18 questions · ~171 min
Merge Overlapping IntervalsEasy
Practice

Merge overlapping intervals by sorting start times and greedily extending the current range.

CodingtechnicalProgrammingAmazon Development Center U.S.
Two Sum with TargetEasy
Practice

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysStringsAmazon Development Center U.S.
Bucket Sort ProblemMedium
Practice

Sort integer processing times using buckets and insertion sort, achieving average O(n + k) time under a balanced distribution.

CodingArraysSortingAmazon Development Center U.S.
Implement LRU CacheEasy
Practice

Problem Design a data structure that implements an LRU (Least Recently Used) cache. The cache should support the following operations: - get(key): Retrieve...

Hash TablesQueueLinked ListsAmazon Development Center U.S.
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2
System Design9 questions · ~86 min
Design a URL Shortening ServiceHard

Design a URL shortening service that routes, ranks, and monitors links at scale.

Feature StoreModel ServingAmazon Development Center U.S.
Design a Highly Available ML Serving PlatformMedium

Design a distributed ML serving platform that stays available and scales under failures, traffic spikes, and model updates.

distributed systemsscalabilityhigh availabilityAmazon Development Center U.S.
Design a Real-Time Chat RankerHard

Design the ML system behind a real-time chat app, including message ranking, retrieval, serving, and feedback loops.

InfrastructureRetrievalAmazon Development Center U.S.
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3
Behavioral & Leadership23 questions · ~219 min
Failing as a LeaderMedium

Tests leadership failure, self-awareness, and learning from mistakes with a concrete example and measurable impact.

LeadershipOwnershipDealing With AmbiguityAmazon Development Center U.S.
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