Top 18
Prep plan
Updated weekly · Last refresh Aug 30

Workday Machine Learning Engineer Interview Questions

The questions to prepare for a Workday Machine Learning Engineer interview. Questions from real interview reports rank first. Updated weekly.

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1
Machine LearningStart here. 3 questions · ~24 min
Gradient Descent and Learning Rate SchedulesMedium

Tests your conceptual and mathematical understanding of optimization in training deep models.

Gradient DescentoptimizationWorkday
Class Imbalance for Rare ClausesMedium

Tests your ability to handle imbalanced classification with appropriate techniques and evaluation.

Classificationmodel trainingClass ImbalanceWorkday
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2
System Design6 questions · ~49 min
Design a Real-Time ML Feature StoreHard

Design a shared feature store for training and low-latency inference across many ML systems with strict freshness and consistency needs.

Feature StoreFeature DriftModel ServingWorkday
Feature Store for Offline and OnlineHard

Tests your ability to build reliable feature serving for training and inference at scale.

Feature StoreWorkday
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3
Behavioral & Leadership5 questions · ~41 min
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4
More topics4 questions · ~32 min
Explain Transformer Self-AttentionHard

Explain how transformer self-attention works, including its role in sequence modeling and why it scales better than RNNs.

Neural NetworksLanguage ModelsDeep LearningWorkday
Optimize Pandas Loading MemoryMedium

Tests practical data engineering skills for handling large datasets efficiently.

pandascsv parsingWorkday
RAG Metrics Beyond AccuracyMedium

Tests your ability to design evaluation plans for RAG quality, retrieval, and faithfulness.

Evaluation TechniquesRetrievalModel MetricsWorkday
Transformers vs RNNs Self-AttentionMedium

Tests your understanding of core sequence modeling mechanics and architectural tradeoffs.

Neural NetworksLanguage ModelstransformersWorkday

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