Top 23
Prep plan
Updated weekly · Last refresh Oct 17

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 daily.

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~4htotal time
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1
System DesignStart here. 6 questions · ~57 min
Design an Agent for Ingesting People DataHard

Design an agent that ingests, validates, and normalizes people data into Workday HCM at scale.

Workday
Agentic AI System DesignHard

Design an agentic AI system for a Workday enterprise workflow, including orchestration, retrieval, safety, and evaluation.

agent workflowsenterprise architectureprojectsWorkday
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2
Coding3 questions · ~29 min
Impute Missing Contract MetadataMedium
Practice

Compute category averages from observed values and use them to impute missing entries while preserving unavailable values.

missing valuesaggregationpandasWorkday
Parse and Normalize Text InputsMedium
Practice

Normalize Unicode text, escaped whitespace, emails, URLs, and punctuation before tokenization.

clean codepythonAlgorithmsWorkday
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3
Machine Learning4 questions · ~38 min
Gradient Descent and Learning Rate SchedulesHard

Explain gradient descent math and how learning rate schedules change convergence behavior during model training.

model trainingGradient DescentoptimizationWorkday
Class Imbalance for Rare ClausesMedium

Train a classifier for rare Workday contract clauses using imbalance-aware sampling, weighting, and threshold tuning.

Cross-ValidationClassificationFeature EngineeringWorkday
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4
Behavioral & Leadership8 questions · ~77 min
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5
More topics2 questions · ~19 min
RAG Metrics Beyond AccuracyMedium

Identify the right metrics for a RAG system and explain why accuracy alone misses retrieval and generation failures.

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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