Top 19
Prep plan
Updated weekly · Last refresh Sep 24

Shoptaki Data Scientist Interview Questions

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

19questions
~3htotal time
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1
Machine LearningStart here. 7 questions · ~62 min
Describe an ML Project You BuiltMedium

Describe a machine learning project, from problem framing and feature work to model training and evaluation.

Cross-ValidationFeature EngineeringSupervised LearningShoptaki
Feature Engineering and Model PerformanceEasy

Explain how feature engineering improves supervised model performance and how to validate its impact with proper evaluation.

Feature EngineeringBias-Variance TradeoffSupervised LearningShoptaki
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2
Product Sense3 questions · ~27 min
Motivation for Data Engineering WorkEasy

Explain what drives your interest in data engineering, grounded in user needs and the value created by reliable data systems.

Jobs to Be DoneUser NeedsValue PropositionShoptaki
Shoptaki Culture and Working StyleEasy

Tests candidate fit and understanding of how Shoptaki expects people to work together.

User NeedsValue PropositionProduct VisionShoptaki
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3
More topics9 questions · ~80 min
Handling Missing DataMedium
Practice

Standardize missing observation fields with fallback values, missingness flags, and ordered output.

Window Functionsmissing valuesdata cleaningShoptaki
Diagnose Churn by Customer SegmentMedium

Investigate why one customer segment drives most churn and what actions to take.

User SegmentsChurnDiagnosisShoptaki
A/B Testing for Product FeaturesMedium

Explain how to design and evaluate an A/B test for a product feature, including metrics, MDE, sample size, and guardrails.

Hypothesis TestingStatistical SignificanceA/B TestingShoptaki
Model Performance MetricsEasy

Tests your understanding of evaluation metrics and how you choose them for ML success criteria.

PrecisionAccuracyRecallShoptaki
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
The finish line: interview-readyComplete all 19 questions plus 2 hands-on drills to finish this plan.