Nextdoor Interview Questions
The questions to prepare for Nextdoor interviews, across all roles. Questions from real interview reports rank first. Updated weekly.
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NextdoorUse CTEs, joins, and date filtering to calculate 30-day retention by signup cohort from login and feature usage data.
NextdoorCalculate month-1 retention for January vs February signup cohorts using joins, date filtering, and aggregation.
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Explain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.
NextdoorInvestigate a 15% engagement decline by decomposing the metric, isolating root causes, and proposing actions.
NextdoorApproach for handling schema changes and data quality checks in a high-volume data lake pipeline.
NextdoorExplain how you would balance technical debt work against new feature delivery without losing roadmap credibility or increasing risk.
NextdoorIdentify major online experiment pitfalls and explain how they can bias results in a streaming product A/B test.
NextdoorDesign a URL shortening service that routes, ranks, and monitors links at scale.
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