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Updated weekly · Last refresh Oct 17

Amazon Applied Scientist Interview Questions

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

50questions
~10htotal time
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1
CodingStart here. 13 questions · ~161 min
Strawberry Basket ProblemMedium
Practice

Use greedy basket assignment to partition a fruit stream into the minimum number of baskets without duplicate fruit.

ArraysArray ManipulationAlgorithmsAmazon
Per-Widget Clicks and ImpressionsMedium
Practice

Join impression and click records by widget key, then aggregate clicks, impressions, and CTR by category.

aggregationAlgorithmsAmazon
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2
System Design13 questions · ~161 min
Extend NMT to New SourceHard

Extend a 15-source NMT system to news headlines while preserving quality and detecting domain-specific regressions.

feedback loopFeature Driftdata ingestionAmazon
Product Categorization at AmazonMedium

Design an end-to-end Amazon product categorization approach using 10k labeled and 1m unlabeled products.

feedback loopactive learningdata collectionAmazon
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3
Machine Learning12 questions · ~149 min
CLIP Research DirectionsHard
Recently asked

Design and evaluate research improvements to CLIP across data, objectives, architecture, robustness, and multimodal alignment.

model architectureDeep LearningModel EvaluationAmazon
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4
Model Evaluation7 questions · ~87 min
Bias-Variance Estimator ChoiceHard
Recently asked

Explain how bias, variance, data size, validation results, and business loss guide estimator selection.

performance evaluationEvaluation TechniquesModel MetricsAmazon
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5
Behavioral & Leadership3 questions · ~37 min
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6
More topics2 questions · ~25 min
Bias-Variance DiagnosisMedium
Recently asked

Evaluates your ability to diagnose errors and guide next steps using bias-variance concepts.

Bias-Variance TradeoffRegressionVarianceAmazon
Bias vs VarianceEasy
Recently asked

Tests core ML understanding of error decomposition and generalization.

Machine Learningmodel validationtechnical fundamentalsAmazon
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