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Updated weekly · Last refresh Oct 17

Amazon Services Machine Learning Engineer Interview Questions

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

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1
CodingStart here. 3 questions · ~27 min
Lists vs DictionariesEasy
Practice

Implement a Python function that summarizes key behavioral differences between a list and a dictionary, including nested dictionaries.

CodingArraysData StructuresAmazon Services
Nested DictionariesMedium
Practice

Recursively calculate the maximum nesting depth of dictionaries inside a Python dictionary.

CodingData StructuresAlgorithmsAmazon Services
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2
System Design9 questions · ~81 min
Auto-complete System DesignHard

Design a variable-K search autocomplete system with six-month expiration and large-scale serving requirements.

latencydistributed systemsdesignAmazon Services
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3
Machine Learning9 questions · ~81 min
Segment and Predict Amazon Seller RiskEasy
Recently asked

Build a supervised seller-risk classifier and an unsupervised seller segmentation model, then explain when each approach is appropriate.

Unsupervised LearningFeature EngineeringSupervised LearningAmazon Services
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4
Model Evaluation9 questions · ~81 min
Optimize an Underperforming ModelHard
Recently asked

Structured approach for improving an underperforming model through validation, tuning, threshold selection, and bias variance diagnosis.

Hyperparameter TuningCross-ValidationBias-Variance TradeoffAmazon Services
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5
Pipelines9 questions · ~81 min
MLOps Pipeline ReproducibilityMedium
Recently asked

Discuss how to build ML pipelines that are repeatable, traceable, and observable across training and deployment.

model reproducibilitydata pipelinesmlopsAmazon Services
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6
Statistics & Probability8 questions · ~72 min
Power Analysis for Experiment PlanningMedium
Recently asked

Reason about power analysis when planning an experiment and choosing sample size.

ExperimentationPower AnalysisSample SizeAmazon Services
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7
More topics3 questions · ~27 min
Handling Architectural Stakeholder ConflictMedium
Recently asked

Tests conflict resolution and influence when a stakeholder challenges an architectural decision with meaningful business or technical stakes.

Conflict ResolutionStakeholder ManagementCommunicationAmazon Services
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