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Prep plan
Updated weekly · Last refresh Aug 30

Whoop Software Engineer Interview Questions

The questions to prepare for a Whoop Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

38questions
~5htotal time
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1
System DesignStart here. 9 questions · ~75 min
Design Biometric Data APIHard

Evaluates system design skills for secure, scalable APIs processing sensitive data.

api designWhoop
Document Endpoints for New FeatureMedium

Tests your ability to translate product needs into clear API endpoint documentation.

documentationWhoop
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2
Coding8 questions · ~67 min
Distributed REST API With SQLHard

Evaluates your ability to design distributed APIs and implement correct, efficient SQL.

sqlWhoop
Two-Way vs One-Way Data BindingMedium

Evaluates your understanding of frontend state management and data flow.

reactWhoop
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3
Behavioral & Leadership15 questions · ~125 min
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4
More topics6 questions · ~50 min
LR Circuits Basics and ApplicationsMedium

Evaluates your electrical engineering fundamentals and ability to connect concepts to use cases.

Whoop
Improve User Loading ExperienceMedium

Assesses your approach to performance, UX, and engineering trade-offs for user-facing latency.

performanceuser experienceWhoop
Time vs Frequency Domain FilteringMedium

Assesses core signal processing understanding relevant to data pipelines.

filteringWhoop
Schema Change Impact in ProductionMedium

Assesses your ability to reason about migrations, compatibility, and production risk.

schema designWhoop
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
7-Day Rolling Resting Heart RateMedium
Practice
Practice drill

Calculate each active Whoop member's 7-day rolling resting heart rate average using a window function and date-based frame.

Window FunctionsData AnalysissqlWhoop
Compare Monthly User Retention CohortsMedium
Practice
Practice drill

Calculate month-1 retention for January vs February signup cohorts using joins, date filtering, and aggregation.

Window FunctionsDate FunctionsAggregationsTrideumZulilyeBay
SQL Duplicate Record DetectionEasy
Practice
Practice drill

Find duplicate American Institutes for Research assessment submissions using a CTE, GROUP BY, HAVING, and joins.

deduplicationsqldata integrityAmerican Institutes for ResearchMacy's
The finish line: interview-readyComplete all 38 questions plus 3 hands-on drills to finish this plan.