Top 15
Prep plan
Updated weekly · Last refresh Aug 30

Meta IT Research Scientist Interview Questions

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

15questions
~2htotal time
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1
System DesignStart here. 5 questions · ~40 min
Design a ML SystemHard

Evaluates your ability to structure an end-to-end ML system design with trade-offs and risk awareness.

Trade-offsProblem SolvingdesignMeta IT
Research to Production IntegrationMedium

Tests your ability to operationalize research work with reliability, monitoring, and deployment considerations.

integrationMeta IT
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2
Machine Learning4 questions · ~32 min
Precision-Recall Trade-offsMedium

Tests your ability to choose objectives and thresholds aligned with product outcomes.

PrecisionRecallMeta IT
Diagnosing and Mitigating OverfittingMedium

Tests your ability to detect overfitting and apply robust regularization and validation strategies.

DiagnosisoverfittingmitigationMeta IT
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3
More topics6 questions · ~48 min
Data Manipulation Under ConstraintsMedium

Tests your ability to implement correct, efficient data transformations under practical constraints.

Data ManipulationMeta IT
Running Mean and VarianceMedium

Assesses understanding of online statistics for streaming data and practical implementation details.

VarianceMeta IT
Success Beyond Standard MetricsMedium

Tests your ability to define evaluation criteria that reflect user impact and operational constraints.

success metricsMeta IT
Memory and Speed OptimizationMedium

Tests your ability to improve performance through algorithmic and implementation-level changes.

Meta IT
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The finish line: interview-readyComplete all 15 questions to finish this plan.