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Prep plan
Updated weekly · Last refresh Aug 30

Harnham Product Manager Interview Questions

The questions to prepare for a Harnham Product Manager interview. Questions from real interview reports rank first. Updated weekly.

23questions
~3htotal time
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1
StrategyStart here. 3 questions · ~24 min
Build Versus Buy Service CapabilityMedium

Framework for deciding whether to build, buy, or hybridize a new service capability in an engineering organization.

EstimationTrade-offsCompetitive AnalysisHarnham
Balancing Delivery and Platform HealthHard

Framework for balancing near-term feature delivery against long-term platform health and engineering sustainability.

Trade-offsRoadmappingPrioritizationHarnham
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2
Metrics4 questions · ~32 min
Diagnose Conversion Drop Post LaunchMedium

Diagnose why conversion fell from 4.8% to 3.1% after a launch by breaking the metric across funnel steps, cohorts, and segments.

Funnel AnalysisConversion RateDiagnosisHarnham
Diagnose a Conversion DropHard

Investigate whether a conversion drop came from product friction, traffic mix, or an experiment artifact.

Funnel AnalysisConversion RateDiagnosisHarnham
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3
Execution4 questions · ~32 min
Prioritize Conflicting Engineering DeadlinesMedium

Explain how you would prioritize competing engineering deadlines when stakeholders, business impact, and delivery risk are all in tension.

Trade-offsRoadmappingRisk AssessmentHarnham
Short-Term Delivery vs ScalabilityMedium

Tests prioritization and planning tradeoffs between delivery speed and scalable platform outcomes.

Trade-offsRoadmappingfeature deliveryHarnham
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4
Product Sense5 questions · ~40 min
Build an Engagement FeatureMedium

Approach for identifying, prioritizing, and launching a new feature that increases user engagement.

Feature PrioritizationUser NeedsUse CasesHarnham
Integrating AI Into User JourneyMedium

Tests product thinking for introducing AI into Harnham user workflows and value creation.

innovationHarnham
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5
Behavioral & Leadership7 questions · ~56 min
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The finish line: interview-readyComplete all 23 questions to finish this plan.