Top 44
Prep plan
Updated weekly · Last refresh Aug 30

Rokt Data Scientist Interview Questions

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

44questions
~6htotal time
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1
SQL & Data ManipulationStart here. 6 questions + 2 drills · ~71 min
2
A/B Testing & Experimentation5 questions · ~42 min
Choose Randomization for Marketplace TestHard

Design a marketplace experiment by choosing the right randomization unit and protecting against interference and bad inference.

Network InterferenceExperimentationCausal InferenceRokt
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3
Machine Learning7 questions · ~59 min
Supervised vs Unsupervised LearningEasy

Explain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.

Unsupervised LearningFeature EngineeringBias-Variance TradeoffRokt
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4
Product Sense3 questions · ~25 min
Prioritize Features for AI ProductsMedium

A framework for prioritizing AI product features based on user value, feasibility, evaluation quality, and trade-offs.

Feature PrioritizationValue PropositionRokt
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5
Metrics6 questions · ~51 min
Diagnose KPI Drop After ReleaseMedium

Diagnose a post-release KPI drop by separating instrumentation issues from real behavior changes and tracing the problem through the metric hierarchy.

KPILeading IndicatorsDiagnosisRokt
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6
Behavioral & Leadership10 questions · ~85 min
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7
More topics7 questions · ~59 min
Design a Cold Start RankerMedium

Design a recommendation and ranking system that handles cold start for both new users and new items without hurting feed quality.

Cold StartTwo-Tower ModelsRecommendation SystemsRokt
Batch vs Streaming Data ProcessingEasy

Compare batch and streaming data processing, including when each fits best in a pipeline.

Stream ProcessingETLBatch ProcessingRokt
Statistical Significance and Confidence IntervalsEasy

Explain how statistical significance and confidence intervals are interpreted in a product experiment.

Confidence IntervalsHypothesis TestingStatistical SignificanceRokt
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The finish line: interview-readyComplete all 44 questions plus 2 hands-on drills to finish this plan.