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Updated weekly · Last refresh Oct 17

Meta AI Research Scientist Interview Questions

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

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1
CodingStart here. 8 questions · ~87 min
Merge K Sorted ListsMedium
Practice

Merge k sorted lists efficiently using a min-heap while preserving global sorted order.

coding challengeData StructuresAlgorithmsMeta
General Lowest Common AncestorMedium
Practice

Find the lowest common ancestor of two nodes in a binary tree using depth-first search.

dfsData StructuresAlgorithmsMeta
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2
System Design13 questions · ~141 min
Self-Attention MechanismHard

Implement numerically stable self-attention with masking, batching, and clear complexity guarantees.

latencyml inferencecomputational costMeta
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3
NLP4 questions · ~44 min
Use Word Embeddings in Text AnalyticsHard
Recently asked

Explain how to apply word embeddings in a text analytics workflow, from preprocessing to modeling and evaluation.

Language ModelsText ClassificationWord EmbeddingsMeta
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4
Generative AI & LLMs7 questions · ~76 min
Prompt for Reliable Field ExtractionMedium
Recently asked

Design a prompt for structured extraction that improves schema adherence, reduces invented values, and is easy to evaluate.

HallucinationStructured ExtractionPrompt EngineeringMeta
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5
Model Evaluation3 questions · ~33 min
Compare Classifiers with ROC AUCEasy
Recently asked

Compare two classifiers using ROC AUC and explain what the score does and does not tell you.

PrecisionAUC-ROCAccuracyMeta
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6
Statistics & Probability6 questions · ~65 min
Power Analysis for Experiment PlanningMedium
Recently asked

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

ExperimentationPower AnalysisSample SizeMeta
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7
More topics9 questions · ~98 min
Pre-LN vs Post-LN Trade-offsMedium
Recently asked

Evaluates understanding of Transformer normalization variants and their impacts.

Neural NetworksRegularizationDeep LearningMeta
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