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Wish Interview Questions

The questions to prepare for Wish interviews, across all roles. Questions from real interview reports rank first. Updated weekly.

50questions
~9htotal time
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1
CodingStart here. 5 questions · ~52 min
2
SQL & Data Manipulation4 questions + 1 drill · ~51 min
3
Machine Learning3 questions · ~31 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 TradeoffWish
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4
A/B Testing & Experimentation3 questions · ~31 min
Marketing Campaign A/B Test DesignMedium

Design a marketing campaign experiment with a pre-registered metric plan, power calculation, and ship rule that respects guardrails.

ExperimentationHypothesis TestingA/B TestingWish
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5
System Design3 questions · ~31 min
Design a Personalized Product RecommenderHard

Design an end-to-end product recommendation system for a large e-commerce marketplace with strict latency and freshness needs.

Feature StoreFeature DriftModel ServingWish
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6
Pipelines4 questions · ~41 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityWish
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7
More topics28 questions · ~290 min
Using Metrics to Drive DecisionsEasy

Explain how you used a KPI and supporting metrics to diagnose a product issue and make a concrete product decision.

Funnel AnalysisKPIsLeading IndicatorsWish
Clarify Ambiguous Project RequirementsMedium

Explain how you turn vague requirements into aligned scope, clear decisions, and shared understanding for the team.

ClarityDealing With AmbiguityProject ManagementWish
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The finish line: interview-readyComplete all 50 questions plus 1 hands-on drill to finish this plan.