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Updated weekly · Last refresh Aug 30

Amazon Web Services Applied Scientist Interview Questions

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

27questions
~4htotal time
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1
Machine LearningStart here. 6 questions · ~49 min
Supervised vs Unsupervised LearningEasy
Recently asked

Explain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.

Unsupervised LearningFeature EngineeringBias-Variance TradeoffAmazon Web Services
Handling Missing Values in MLEasy
Recently asked

Explain practical strategies for handling missing values in a supervised learning workflow, from diagnosis to modeling and validation.

Cross-ValidationFeature EngineeringRegularizationAmazon Web Services
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2
System Design4 questions · ~33 min
Design a Real-Time Prediction PlatformHard
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Design a low-latency ML system for real-time predictions with online features, model serving, and monitoring.

Feature StoreFeature DriftModel ServingAmazon Web Services
Deploy a Cloud ML Inference SystemMedium
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Design a cloud ML deployment system for a security product, covering training, serving, updates, and production monitoring.

InfrastructureFeature DriftModel ServingAmazon Web Services
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3
Coding3 questions · ~24 min
Algorithm Efficiency OptimizationMedium
Recently asked

Tests your performance engineering skills and tradeoff reasoning for algorithmic improvements.

Hash TablesSearchingSortingAmazon Web Services
Implement a Sorting AlgorithmMedium
Recently asked

Tests coding fundamentals and ability to produce correct, efficient implementations.

RecursionArraysSortingAmazon Web Services
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4
Model Evaluation3 questions · ~24 min
Debugging Underperforming ModelsMedium
Recently asked

Tests your diagnostic workflow for identifying data, modeling, and evaluation issues.

PrecisionAccuracyRecallAmazon Web Services
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5
Behavioral & Leadership10 questions · ~81 min
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6
More topics1 question · ~8 min
Interpreting P Values in TestingEasy
Recently asked

Explain what a p-value means in hypothesis testing and how it relates to statistical significance.

Hypothesis TestingStatistical SignificanceP-ValuesAmazon Web Services
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