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Updated weekly · Last refresh Oct 17

Boston Consulting Group AI Engineer Interview Questions

The questions to prepare for a Boston Consulting Group AI Engineer interview. Questions from real interview reports rank first. Updated daily.

50questions
~9htotal time
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1
System DesignStart here. 9 questions · ~96 min
2
Coding9 questions · ~96 min
Cumulative Visits IndexEasy
Practice

Find the first index where cumulative website visits exceed a target using a linear scan.

aggregationindexingArraysBoston Consulting Group
Paths With One TurnHard
Practice

Count distinct top-left matrix paths matching listed words while making at most one direction change.

combinatoricsArraysAlgorithmsBoston Consulting Group
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3
Generative AI & LLMs9 questions · ~96 min
LLM Evaluation and Safety GuardrailsHard

Design an evaluation framework that measures answer quality, hallucination, refusal behavior, and safety-guardrail effectiveness.

HallucinationPrompt InjectionLLM EvaluationBoston Consulting Group
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4
Model Evaluation8 questions · ~86 min
Detect Production Drift in ModelsHard

How to detect data drift and concept drift in production using metric shifts, control charts, and calibration checks.

CalibrationAUC-ROCThreshold TuningBoston Consulting Group
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5
Machine Learning9 questions · ~96 min
Supervised vs Unsupervised LearningEasy

Explain how supervised, unsupervised, and reinforcement learning differ in data, objectives, and evaluation.

Unsupervised LearningFeature EngineeringSupervised LearningBoston Consulting Group
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6
More topics6 questions · ~64 min
Explain Word EmbeddingsEasy

Explain how word embeddings represent words as dense vectors and why they help NLP models capture meaning.

Language ModelsText ClassificationFeature EngineeringBoston Consulting Group
Real-Time Data Processing SystemHard

Tests system design for streaming architectures, latency tradeoffs, and reliability for real-time analytics.

InfrastructureStream ProcessingOrchestrationBoston Consulting Group
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