Top 28
Prep plan
Updated weekly · Last refresh Oct 17

CGI GenAI Engineer Interview Questions

The questions to prepare for a CGI GenAI Engineer interview. Questions from real interview reports rank first. Updated daily.

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~4htotal time
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1
System DesignStart here. 3 questions · ~24 min
Deploy Production LLM ArchitecturesMedium

Compare production LLM deployment architectures and explain trade-offs across latency, cost, quality, reliability, and operations.

llm deploymentproduction systemsarchitectureCGI
Design a Low Latency RAG PlatformHard

Design a low latency RAG system over millions of documents, with scalable retrieval, ranking, generation, and production monitoring.

low latencyscalabilityRAG architectureCGI
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2
Generative AI & LLMs9 questions · ~73 min
Discuss a GenAI ProjectMedium

Talk through a real generative AI project, focusing on architecture, evaluation, hallucination risk, and how you handled safety issues in practice.

Prompt EngineeringRAGLLM EvaluationCGI
Ethics in Generative AI DeploymentMedium

Discuss the main ethical risks in deploying generative AI, including hallucination, misuse, privacy, and governance.

HallucinationPrompt InjectionLLM EvaluationCGI
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3
Machine Learning4 questions · ~33 min
Explain Random ForestsEasy

Explain how random forests work, why they reduce variance, and when they are a good choice.

Cross-ValidationEnsemble MethodsDecision TreesCGI
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4
Model Evaluation3 questions · ~24 min
Monitor Model Performance Over TimeMedium

Approach for continuously monitoring a deployed model and keeping performance stable as data changes.

CalibrationAccuracyThreshold TuningCGI
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5
Coding3 questions · ~24 min
Preprocess Missing Values FunctionEasy

Tests practical coding skills for data cleaning and handling missing data correctly.

Hash TablesArraysMatrixCGI
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6
Behavioral & Leadership5 questions · ~41 min
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7
More topics1 question · ~8 min
End-to-End ML PipelineHard

Tests your ability to design production-ready ML pipelines across data, training, and deployment.

ETLBatch ProcessingOrchestrationCGI
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