Top 19
Prep plan
Updated weekly · Last refresh Oct 6

Meta Platforms AI Research Scientist Interview Questions

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

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~3htotal time
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1
CodingStart here. 3 questions · ~27 min
Implementing a Classification AlgorithmMedium
Practice

Implement k-nearest neighbors to classify Meta Reels feature vectors and evaluate predictions with validation accuracy.

Hash TablesArraysSortingMeta Platforms
Time Complexity of Sorting AlgorithmsEasy

Compare common sorting algorithms by best, average, and worst-case time complexity and explain when each is appropriate.

MathArraysSortingMeta Platforms
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2
Machine Learning3 questions · ~27 min
Deep Learning Framework ExperienceMedium

Discuss practical experience with deep learning frameworks, including model development, training workflows, and framework tradeoffs.

Feature EngineeringDeep LearningSupervised LearningMeta Platforms
Bias-Variance Tradeoff in PracticeMedium

Explain the bias-variance tradeoff and how it guides model choice, regularization, and generalization performance.

Cross-ValidationBias-Variance TradeoffRegularizationMeta Platforms
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3
System Design3 questions · ~27 min
Production Deployment ConsiderationsMedium

Tests knowledge of deployment, monitoring, reliability, and operational risk management for AI systems.

Cold StartFeature DriftModel ServingMeta Platforms
Architecture of a Model You BuiltMedium

Tests depth of ML architecture understanding and ability to explain design decisions clearly.

Feature StoreModel ServingTwo-Tower ModelsMeta Platforms
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4
Behavioral & Leadership8 questions · ~72 min
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5
More topics2 questions · ~18 min
Evaluate Precision and Recall TradeoffsMedium

Assess precision and recall for a model and explain how the threshold changes the tradeoff.

F1 ScorePrecisionRecallMeta Platforms
AI Alignment ImportanceMedium

Tests understanding of AI alignment and its relevance to building safe, reliable AI systems at Meta Platforms.

HallucinationPrompt EngineeringRAGMeta Platforms
The finish line: interview-readyComplete all 19 questions to finish this plan.