Top 41
Prep plan
Updated weekly · Last refresh Oct 17

Amazon AI Research Scientist Interview Questions

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

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1
CodingStart here. 3 questions · ~28 min
Gradient Descent from ScratchMedium
Practice

Implement gradient descent for a quadratic function and return the parameter value after a fixed number of updates.

CodingBasic AlgorithmsAlgorithmsAmazon
Maximum SubarrayMedium
Practice

Find the contiguous subarray with the largest sum using Kadane's dynamic programming algorithm.

Dynamic ProgrammingArraysAlgorithmsAmazon
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2
System Design11 questions · ~102 min
RNN vs LSTMMedium

Explain when to use an RNN or LSTM and why LSTMs handle long-term dependencies more effectively.

inference latencymodel inferencecomputational costAmazon
What is DropoutHard

Explain dropout, including its training behavior, inference behavior, purpose, and practical tradeoffs.

ml inferenceModel Servingcomputational costAmazon
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3
Machine Learning10 questions · ~92 min
Derive ELBO for VAEHard

Tests understanding of probabilistic modeling and VAE fundamentals.

model architectureAmazon
Bagging vs BoostingMedium

Assesses ensemble learning concepts and practical judgment.

Model EvaluationAmazon
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4
Statistics & Probability3 questions · ~28 min
Compare Boy and Girl DistributionsMedium

Tests statistical difference between two groups using a dataset with features for boys and girls.

Hypothesis TestingData AnalysisStatistical SignificanceAmazon
Statistical Comparison Between GroupsMedium

Assesses statistical testing and experimental design skills.

Hypothesis TestingData AnalysisStatistical SignificanceAmazon
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5
Behavioral & Leadership14 questions · ~129 min
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