Top 20
Prep plan
Updated weekly · Last refresh Sep 22
C

Company Product & Technology Data Scientist Interview Questions

The questions to prepare for a Company Product & Technology Data Scientist interview. Questions from real interview reports rank first. Updated daily.

20questions
~3htotal time
Track your progressSign up free to work through all 20 questions and resume where you left off.
Start practicing free →
1
Product SenseStart here. 4 questions · ~34 min
Define Metrics for New FeaturesMedium

Define a success metric for a new feature that captures real user value, not just raw usage.

MetricsFeature Prioritizationuser valueCCompany Product & Technology
More Product Sense questions with a free account
2
A/B Testing & Experimentation6 questions · ~52 min
Design Test for New FeatureMedium

Design an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.

experiment designfeature evaluationA/B TestingCCompany Product & Technology
More A/B Testing & Experimentation questions with a free account
3
Behavioral & Leadership4 questions · ~34 min
More Behavioral & Leadership questions with a free account
4
More topics6 questions · ~52 min
Window Functions Rolling ComparisonHard
Practice

Compute each user's seven-day activity average and compare it with the corresponding rolling average from the prior week.

Window FunctionsLag/LeadData ManipulationCCompany Product & Technology
Diagnose Engagement DropHard

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

MetricsDiagnosisuser engagementCCompany Product & Technology
Foundations of Core AlgorithmsMedium

Evaluates ML fundamentals and model evaluation concepts.

evaluation metricslinear regressionCCompany Product & Technology
Alternative Relationship MetricsMedium

Evaluates understanding of relational metrics beyond distance.

Data AnalysisCCompany Product & Technology
Separate Retention From Short Term EngagementHard

Assess whether a feature drives durable retention gains or only a temporary spike in usage.

RetentionEngagement MetricsCCompany Product & Technology
Handling Missing and Dirty SQL DataMedium

Explain how to profile, clean, and standardize missing or dirty data before analysis.

Data WranglingCase WhenQualityCCompany Product & Technology

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

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