Top 43
Prep plan
Updated weekly · Last refresh Aug 30

LinkedIn AI Engineer Interview Questions

The questions to prepare for a LinkedIn AI Engineer interview. Questions from real interview reports rank first. Updated weekly.

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~6htotal time
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1
CodingStart here. 8 questions · ~72 min
Reverse a Linked ListEasy
Practice

Reverse a singly linked list in place using pointer manipulation.

RecursionLinked ListsLinkedIn
Find Two Sum IndicesEasy
Practice

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysSortingLinkedIn
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2
System Design10 questions · ~90 min
Design a Cold Start RankerMedium

Design a recommendation and ranking system that handles cold start for both new users and new items without hurting feed quality.

Cold StartTwo-Tower ModelsRecommendation SystemsLinkedIn
Design Feature Drift Monitoring SystemHard

Design a production ranking system with robust feature drift monitoring across batch and real-time features at high QPS.

Feature StoreFeature DriftModel ServingLinkedIn
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3
Model Evaluation4 questions · ~36 min
Common Model Evaluation MetricsEasy

Explain common machine learning evaluation metrics and when each is useful.

PrecisionAccuracyRecallLinkedIn
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4
Generative AI & LLMs7 questions · ~63 min
Fix Hallucinations in RAG AnswersEasy

Reduce hallucinations in a RAG system even when retrieval is already correct, using grounding, verification, and evaluation.

LinkedIn
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5
Behavioral & Leadership10 questions · ~90 min
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6
More topics4 questions · ~36 min
Handling Missing Values in MLEasy

Explain practical strategies for handling missing values in a supervised learning workflow, from diagnosis to modeling and validation.

Cross-ValidationFeature EngineeringRegularizationLinkedIn
Data Quality in ML PipelinesMedium

Practical approach for maintaining data quality across ML ETL pipelines, orchestration, and repeatable data processing.

Data QualityETLData ModelingLinkedIn
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