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Patreon Interview Questions

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

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1
CodingStart here. 6 questions · ~64 min
Sliding Window API Rate LimiterMedium
Practice

Implement a per-user sliding window rate limiter that accepts or rejects requests in O(1) amortized time.

Hash TablesQueueGreedyPatreon
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2
SQL & Data Manipulation5 questions + 1 drill · ~63 min
Conversion Rate by Channel SegmentMedium
Practice

Use joins, a CTE, and aggregation to compute 30-day conversion rate by acquisition channel and customer segment.

JoinsGroup ByCase WhenPatreon
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
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3
Execution5 questions · ~53 min
Handle Scope Creep Mid-ProjectMedium

Explain how you would manage scope creep without damaging stakeholder trust or putting delivery at risk.

Trade-offsRisk AssessmentScope ManagementPatreon
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4
Metrics5 questions · ~53 min
Investigate User Engagement DeclineMedium

Investigate a 15% engagement decline by decomposing the metric, isolating root causes, and proposing actions.

RetentionDiagnosisEngagement MetricsPatreon
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5
Product Sense5 questions · ~53 min
Designing for Accessibility at ScaleMedium

Approach for building accessibility into product design through user needs, research, use cases, and measurable outcomes.

User NeedsPain PointsUse CasesPatreon
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6
Pipelines5 questions · ~53 min
Data Quality and Schema EvolutionMedium

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

schema evolutionData ModelingQualityPatreon
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7
More topics19 questions · ~201 min
Primary vs Guardrail MetricsEasy

Explain how a primary metric differs from a guardrail metric and how both are used in A/B test decisions.

ExperimentationGuardrail MetricsA/B TestingPatreon
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-ValuesPatreon
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