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Prep plan
Updated weekly · Last refresh Oct 17

Guild Data Scientist Interview Questions

The questions to prepare for a Guild Data Scientist interview. Questions from real interview reports rank first. Updated daily.

50questions
~7htotal time
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1
A/B Testing & ExperimentationStart here. 5 questions · ~42 min
2
Model Evaluation6 questions · ~51 min
Accuracy vs F1 ScoreMedium

Explain how accuracy differs from F1 score and when each metric is appropriate for classification evaluation.

ClassificationF1 ScorePrecisionGuild
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3
Machine Learning7 questions · ~59 min
Optimizing ML Model PerformanceMedium

Explain how to improve a supervised ML model using feature engineering, regularization, validation, and tuning.

Hyperparameter TuningCross-ValidationBias-Variance TradeoffGuild
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4
Product Sense6 questions · ~51 min
Define Financial Product Value PropositionEasy

Framework for defining a financial product's value proposition based on user needs, segments, and the job the product solves.

User SegmentsValue PropositionProduct VisionGuild
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5
Metrics6 questions · ~51 min
Diagnose Engagement DropHard

Identify the causes of a quarterly engagement decline through metric validation, decomposition, segmentation, and trend analysis.

MetricsDiagnosisuser engagementGuild
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6
Statistics & Probability6 questions · ~51 min
Power Analysis for Experiment PlanningMedium

Reason about power analysis when planning an experiment and choosing sample size.

ExperimentationPower AnalysisSample SizeGuild
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7
More topics14 questions · ~119 min
Structure Retention Cohort AnalysisMedium

Explain how to structure a cohort retention query using cohort assignment, period offsets, and aggregation in PostgreSQL.

Date FunctionsCTEsGroup ByGuild
Production Pipeline Quality MonitoringMedium

Approach for adding data quality checks, observability, and production monitoring to a data pipeline.

Data QualitymonitoringobservabilityGuild
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.