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Updated weekly · Last refresh Sep 20

Amazon Prime Now Data Engineer Interview Questions

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

10questions
~2htotal time
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1
SQL & Data ManipulationStart here. 3 questions + 2 drills · ~48 min
Top Three Products by RegionMedium
Practice

Rank the top three products by regional unit sales for the most recently completed quarter, including ties.

Window FunctionsDate FunctionsRankingAmazon Prime Now
Optimizing Large Analytical SQL QueriesHard

Explain how to diagnose and optimize a slow analytical query on a multi-terabyte event table using SQL-aware tuning strategies.

JoinsData WranglingCTEsAmazon Prime Now
Star vs Snowflake for Sales AnalyticsMedium

Compare star and snowflake schemas for warehouse design, including trade-offs in normalization, query simplicity, and analytics performance.

JoinsData WranglingGroup ByAmazon Prime Now
Top 5 Underperforming RoutesMedium
Practice
Practice drill

Use a CTE, LEFT JOIN, and aggregation to identify the five Amazon Prime Now routes with the highest average cycle time.

sql queryData Analysisperformance metricsAmazon Prime Now
Top Credit Score Applicants by StateMedium
Practice
Practice drill

Identify the highest-credit-score 5% of applicants within each state using percentiles and window ranking.

Window FunctionsJoinsRankingAmerican Credit Acceptance
2
Pipelines4 questions · ~37 min
Design Real-Time Feature PipelineHard

Design a real-time feature pipeline processing 120K events/sec into low-latency feature tables and warehouse models with replay and quality controls.

InfrastructureStream ProcessingOrchestrationAmazon Prime Now
Handle Late Data in StreamingHard

Design a streaming pipeline that can absorb late-arriving events while keeping aggregates correct and downstream tables stable.

Stream ProcessingIdempotencyData ModelingAmazon Prime Now
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityAmazon Prime Now
Data Lake for Batch and Ad HocHard

Evaluates your ability to design a scalable data lake for mixed batch workloads and analytics at Amazon Prime Now.

analyticsBatch ProcessingAmazon Prime Now

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3
Behavioral & Leadership3 questions · ~28 min
Resolving Data Quality Under PressureMedium

Tests ownership of data quality issues, risk communication to leadership, and stakeholder management under business pressure.

Data QualityCommunicationLeadershipAmazon Prime Now
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The finish line: interview-readyComplete all 10 questions plus 2 hands-on drills to finish this plan.