Top 31
Prep plan
Updated weekly · Last refresh Aug 30

GitLab AI Engineer Interview Questions

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

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1
System DesignStart here. 5 questions · ~41 min
Design an LLM Serving PlatformHard

Design an LLM serving system that balances latency, cost, scalability, and safety for production traffic.

Cold StartFeature StoreModel ServingGitLab
Deploy a Cloud ML Inference SystemMedium

Design a cloud ML deployment system for a security product, covering training, serving, updates, and production monitoring.

InfrastructureFeature DriftModel ServingGitLab
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2
Machine Learning5 questions · ~41 min
Data Preprocessing for Reliable ModelsEasy

Explain why data preprocessing matters, using a concrete supervised learning example with missing values, outliers, and mixed feature types.

Cross-ValidationFeature EngineeringSupervised LearningGitLab
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3
Model Evaluation4 questions · ~33 min
Define Model Success MetricsEasy

Explain how you would evaluate whether an AI model is successful using core classification metrics.

PrecisionAccuracyRecallGitLab
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4
Generative AI & LLMs4 questions · ~33 min
Evaluate an LLM SystemMedium

Explain how to evaluate a generative model using offline and online methods, with attention to hallucination, product metrics, and experiment design.

HallucinationPrompt EngineeringLLM EvaluationGitLab
Explain Vector Search in RAGMedium

Design a grounded document Q&A system and explain how vector search improves retrieval quality, latency, and hallucination control in RAG.

Vector SearchPrompt EngineeringRAGGitLab
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5
Coding3 questions · ~24 min
Coding a Basic ML AlgorithmMedium

Tests your coding fundamentals and your ability to justify algorithm selection.

MathArraysSortingGitLab
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6
Behavioral & Leadership8 questions · ~65 min
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7
More topics2 questions · ~16 min
Large Dataset Analysis PipelineEasy

Discuss a large-scale data analysis project with focus on the pipeline, tooling, and data quality approach.

ToolsData ModelingQualityGitLab
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