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McKinsey & Company Interview Questions

The questions to prepare for McKinsey & Company interviews, across all roles. Questions from real interview reports rank first. Updated daily.

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1
CodingStart here. 4 questions · ~34 min
Closest Points to OriginMedium
Practice

Return the k points nearest the origin using squared distance and a bounded max heap.

CodingArraysAlgorithmsMcKinsey & Company
Dynamic Programming State LogicHard

Tests your ability to derive DP states and transitions for complex optimization problems.

Dynamic ProgrammingAlgorithmsMcKinsey & Company
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2
System Design7 questions · ~60 min
Design a URL Shortening ServiceHard

Design a URL shortening service that routes, ranks, and monitors links at scale.

Feature StoreModel ServingMcKinsey & Company
Evaluate Alternative Design ChoicesHard

Explain why you selected an ML method, compare credible alternatives, and justify the tradeoffs using evidence from your project.

challengesml inferencefailure modesMcKinsey & Company
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3
Generative AI & LLMs3 questions · ~26 min
Handle Failed Agent Tool CallsHard
Recently asked

Approach for making LLM agents resilient to failed or timed out tool calls without increasing hallucinations or unsafe actions.

McKinsey & Company
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4
Machine Learning4 questions · ~34 min
Random Forest vs XGBoost on Imbalanced DataMedium
Recently asked

Tests model selection and tuning on imbalanced data.

Hyperparameter TuningMcKinsey & Company
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5
Pipelines3 questions · ~26 min
Advanced SQL for Feature ExtractionHard
Recently asked

Evaluates SQL prowess for feature engineering in data pipelines.

Window Functionsdata extractionMcKinsey & Company
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6
Behavioral & Leadership7 questions · ~60 min
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7
More topics1 question · ~9 min
Concurrency With Shared ResourcesMedium

Tests your approach to thread safety, synchronization, and correctness under concurrency.

multithreadingresource managementconcurrencyMcKinsey & Company
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