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Updated weekly · Last refresh Aug 30

General Motors (GM) Machine Learning Engineer Interview Questions

The questions to prepare for a General Motors (GM) Machine Learning Engineer interview. Questions from real interview reports rank first. Updated weekly.

38questions
~6htotal time
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1
CodingStart here. 7 questions · ~62 min
Writing a Machine Learning FunctionHard
Practice

Use dynamic programming and backpointers to find the most likely hidden-state sequence in a Hidden Markov Model.

RecursionMathArraysGeneral Motors (GM)
Streaming Out-of-Bounds Anomaly DetectionHard
Practice

Detect multivariate sensor anomalies with rolling mean and standard deviation bounds in one pass.

anomaly detectionGeneral Motors (GM)
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2
Pipelines4 questions · ~36 min
ML Model Deployment ConsiderationsMedium

Key pipeline considerations for deploying an ML model into production, including orchestration, reproducibility, data quality, and monitoring.

InfrastructuremonitoringQualityGeneral Motors (GM)
Production ML Deployment PipelineMedium

Key production pipeline considerations for deploying, validating, and monitoring an ML model.

InfrastructureIdempotencyQualityGeneral Motors (GM)
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3
Machine Learning13 questions · ~116 min
Supervised vs Unsupervised LearningEasy

Explain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.

Unsupervised LearningFeature EngineeringBias-Variance TradeoffGeneral Motors (GM)
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4
Model Evaluation5 questions · ~44 min
Improve Predictive Model AccuracyMedium

Assess why a predictive model is missing accuracy targets and identify changes that would improve it.

Cross-ValidationAccuracyThreshold TuningGeneral Motors (GM)
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5
System Design3 questions · ~27 min
Low-Latency Inference for ControlHard

Tests your system design skills for meeting strict latency requirements in real-time inference.

General Motors (GM)
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6
Behavioral & Leadership5 questions · ~44 min
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7
More topics1 question · ~9 min
Trend Discovery ApproachMedium

Tests your ability to derive actionable insights from data using sound statistical reasoning.

RegressionCorrelationGeneral Motors (GM)
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