Quest Global AI Engineer Interview Questions

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

42questions

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CodingStart here. 9 questions · ~80 min

Implement cosine similarity for two numeric vectors using dot product and vector norms.

Frequent Error Patterns From LogsMedium

Practice

Use a hash map and bounded min-heap to return the k most frequent error patterns from Quest Global service logs.

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System Design8 questions · ~71 min

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

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Model Evaluation3 questions · ~27 min

Manage Production Model DriftHard

Approach for detecting, interpreting, and responding to model drift in a production AI system.

CalibrationAUC-ROCThreshold Tuning

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Generative AI & LLMs5 questions · ~44 min

RAG to Minimize HallucinationsMedium

Tests design choices that reduce hallucinations in RAG-based enterprise chatbots.

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NLP6 questions · ~53 min

Vector Search at ScaleMedium

Evaluates scalability considerations for vector search systems as data volume increases.

Vector Search

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