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Updated weekly · Last refresh Oct 7

Amazon Web Services Frontend Engineer Interview Questions

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

34questions
~7htotal time
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1
CodingStart here. 10 questions · ~121 min
Random Number Generator DesignHard
Practice

Implement a recyclable random-number pool with constant-time availability checks and comprehensive edge-case tests.

Data StructuresAlgorithmsedge casesAmazon Web Services
Lodash Once ImplementationMedium
Practice

Implement once semantics so a function executes only on its first call and every later call returns the cached result.

abstractiondecoratorsedge casesAmazon Web Services
Hashmap Insertion and SearchMedium
Practice

Implement a hash map with separate chaining that supports insertion, replacement, and key lookup.

CodingabstractionData StructuresAmazon Web Services
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2
System Design10 questions · ~121 min
Social Platform Design at ScaleHard

Design the scalable database, API, sharding, and ML-aware architecture for a social media platform serving about 10,000 MAU.

database accessdistributed systemsarchitecture patternsAmazon Web Services
Survey Form with AnalyticsHard

Design a survey form and analytics system with reliable event collection, aggregation, and ML-based response insights.

feedback loopdata ingestiondata collectionAmazon Web Services
Real-Time Streaming Component ImplicationsHard

Explain how real-time streaming changes component boundaries, state management, serving, and operational safeguards in an ML system.

streamingdistributed systemsFeature DriftAmazon Web Services
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3
Behavioral & Leadership12 questions · ~145 min
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4
More topics2 questions · ~24 min
Framework Trade-offsMedium

Tests knowledge of front-end framework architectures and rendering approaches.

reactAmazon Web Services
DNS to Display PipelineMedium

Assesses understanding of browser networking and rendering pipeline, anchored to AWS context.

Amazon Web Services
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