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Updated weekly · Last refresh Oct 17

Meta Platforms Research Engineer Interview Questions

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

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1
CodingStart here. 6 questions · ~63 min
Custom Multidimensional ConvolutionHard
Practice

Implement arbitrary-dimensional convolution with stride, padding, dilation, and zero-padding using pure Python.

backpropagationDeep LearningArraysMeta Platforms
Real-Time Anomaly Detection FunctionHard
Practice

Detect per-sensor outliers in DriveWell readings using rolling medians, heaps, and bounded memory.

sensor dataanomaly detectionMeta Platforms
Vector Similarity SearchHard
Practice

Rank item embeddings by cosine similarity to a query vector using a bounded heap.

ArraysData StructuresAlgorithmsMeta Platforms
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2
System Design5 questions · ~53 min
Edge Bottleneck IdentificationMedium

Tests ability to analyze performance bottlenecks for real-time signal processing on edge hardware.

edge devicesbottlenecksMeta Platforms
Real-Time Spatial Audio RenderingHard

Tests system design for low-latency audio rendering and practical performance trade-offs.

latencyreal-time systemsMeta Platforms
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3
Behavioral & Leadership6 questions · ~63 min
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4
More topics3 questions · ~32 min
Supervised vs Self-Supervised + Contrastive LossMedium

Tests ML fundamentals and ability to implement contrastive learning components.

Supervised LearningMeta Platforms
Psychoacoustics in Audio CompressionMedium

Tests understanding of psychoacoustic models and how they drive compression design choices.

technical explanationMeta Platforms
Production Logging and Evaluation PipelineHard

Tests system design for ML observability, evaluation, and continuous monitoring in production.

monitoringMeta Platforms

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