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Updated weekly · Last refresh Aug 30

Grainger Applied Scientist Interview Questions

The questions to prepare for a Grainger Applied Scientist interview. Questions from real interview reports rank first. Updated weekly.

20questions
~3htotal time
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1
System DesignStart here. 5 questions · ~40 min
Design Feature Drift Monitoring SystemHard

Design a production ranking system with robust feature drift monitoring across batch and real-time features at high QPS.

Feature StoreFeature DriftModel ServingGrainger
Minimize Latency for Model ServingHard

Tests performance engineering for ML inference in production systems.

latencyDeep LearningModel ServingGrainger
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2
SQL & Data Manipulation3 questions + 3 drills · ~54 min
3
Machine Learning3 questions · ~24 min
Handle Imbalanced Product CategoriesMedium

Tests ML techniques for imbalanced multi-class classification with sparse labels.

Feature EngineeringSupervised LearningClass ImbalanceGrainger
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4
Behavioral & Leadership6 questions · ~48 min
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5
More topics3 questions · ~24 min
Transformer Architecture and Fine-TuningHard

Tests deep NLP architecture understanding and practical fine-tuning for ranking relevance.

transformerssearch relevanceFine-TuningGrainger
Evaluate Ranking With Sparse FeedbackHard

Tests evaluation design for ranking under limited labels and reliance on proxies.

Evaluation TechniquesRankingModel MetricsGrainger
Embeddings vs Transformer RepresentationsMedium

Tests understanding of NLP representation methods for domain text.

Language ModelstransformersWord EmbeddingsGrainger

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