Top 41
Prep plan
Updated weekly · Last refresh Oct 17

Facebook Machine Learning Engineer Interview Questions

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

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1
CodingStart here. 12 questions · ~124 min
Merge Three Sorted ListsEasy
Practice

Merge three sorted Meta Logistics delivery lists into one sorted list using linear-time pointer traversal.

SortingAlgorithmsFacebook
Shortest Path in Weighted GraphHard
Practice

Use Dijkstra’s algorithm with a priority queue to find the shortest path in a weighted graph with non-negative edges.

shortest pathAlgorithmsGraphsFacebook
LeetCode Medium and Hard MixMedium

Evaluates problem-solving strategy and time management for coding rounds.

system designleetcodeAlgorithmsFacebook
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2
System Design8 questions · ~83 min
System Design Pattern for RecommendationHard

Evaluates your ability to structure scalable recommendation system components and data flows.

social mediaFacebook
Design News Feed Recommendation SystemHard

Assesses end-to-end design choices for feed ranking, retrieval, and serving.

Facebook
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3
Machine Learning11 questions · ~114 min
Business Metrics vs LatencyMedium

Tests ability to align ML objectives with production performance constraints.

technical constraintsFacebook
Detecting Model DriftMedium

Tests monitoring and alerting strategies to identify when models degrade over time.

monitoringproductionFacebook
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4
Behavioral & Leadership9 questions · ~93 min
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5
More topics1 question · ~10 min
Sorting Trade-offs Under Memory LimitsMedium

Tests understanding of algorithmic trade-offs between time and space usage.

Facebook
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