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Updated weekly · Last refresh Aug 30

Headspace Interview Questions

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

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1
SQL & Data ManipulationStart here. 4 questions + 2 drills · ~56 min
2
Coding5 questions · ~45 min
Merge Overlapping Time IntervalsMedium
Practice

Merge overlapping intervals by sorting on start time, then scanning once to combine intersecting ranges.

time complexityAlgorithmsperformance analysisHeadspace
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3
Metrics5 questions · ~45 min
Diagnose a Sudden DAU DropHard

Investigate whether an 8.2% DAU decline is driven by product breakage, logging issues, or normal seasonal patterns.

DAU/MAUDiagnosisTime SeriesHeadspace
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4
Execution5 questions · ~45 min
Clarify Ambiguous Project RequirementsMedium

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

ClarityDealing With AmbiguityProject ManagementHeadspace
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5
Product Sense4 questions · ~36 min
Approach a User Research ProjectEasy

A structured approach to planning and running a user research project that identifies user needs and drives product decisions.

User ResearchUser NeedsPain PointsHeadspace
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6
Pipelines5 questions · ~45 min
Data Quality and Schema EvolutionMedium

Approach for handling schema changes and data quality checks in a high-volume data lake pipeline.

schema evolutionData ModelingQualityHeadspace
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7
More topics22 questions · ~200 min
Design Feature Drift Monitoring SystemHard

Design a production ranking system with robust feature drift monitoring across batch and real-time features at high QPS.

Feature StoreFeature DriftModel ServingHeadspace
Evaluating Observed Lift SignificanceMedium

Explain how to test whether an observed experiment lift is real using hypothesis testing, p-values, and confidence intervals.

Confidence IntervalsStatistical SignificanceP-ValuesHeadspace
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The finish line: interview-readyComplete all 50 questions plus 2 hands-on drills to finish this plan.