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Amazon Web Services QA Engineer Interview Questions

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

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1
CodingStart here. 19 questions · ~240 min
Minimal Currency Note CombinationHard
Practice

Use dynamic programming to find the fewest unlimited currency notes that sum to a target amount.

Dynamic ProgrammingArraysAlgorithmsAmazon Web Services
Reverse a StringEasy
Practice

Reverse a string or integer while preserving integer sign and handling zero correctly.

Array ManipulationAlgorithmsedge casesAmazon Web Services
Most Common WordMedium
Practice

Count normalized words with a hash map and return the earliest word among tied maximum frequencies.

CodingArray ManipulationAlgorithmsAmazon Web Services
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2
Execution23 questions · ~290 min
Delegating QA LeadershipMedium

Plan a controlled handoff of QA leadership while protecting delivery continuity, quality, and stakeholder confidence.

contingency planningdelivery managementcross-functional executionAmazon Web Services
Work AchievementsEasy

Explain your most significant technical writing achievements and the execution choices that made them successful.

Success CriteriaExecutionRoadmappingAmazon Web Services
Testing Infrastructure Changes SafelyMedium

Explain how you would design an infrastructure testing approach that balances delivery speed, risk reduction, and safe rollback.

InfrastructureTestingDevOpsAmazon Web Services
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3
Behavioral & Leadership6 questions · ~76 min
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4
More topics2 questions · ~25 min
Technical Design of a ProjectHard

Explain an ML project’s architecture, design decisions, operational tradeoffs, and validation approach.

ml inferencearchitecture patternsfailure modesAmazon Web Services
API Data Fetching DesignHard

Design a reliable API for fetching data, covering contracts, storage access, pagination, authorization, and operational safeguards.

latencydatabase accessapi gatewayAmazon Web Services

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