Klaviyo Data Scientist Interview Questions
The questions to prepare for a Klaviyo Data Scientist interview. Questions from real interview reports rank first. Updated weekly.
Use SUM, GROUP BY, ORDER BY, and LIMIT to find the top 10 Healthfirst Marketplace customers by purchase total.
KlaviyoCompute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
Meta
Spotify
Meta ITAggregate monthly sales by product category and use LAG to calculate month-over-month changes.
Total Wine & More
Inc.
Benjamin MooreInvestigate a 15% engagement decline by decomposing the metric, isolating root causes, and proposing actions.
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Design an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.
KlaviyoDesign the core pipeline infrastructure for a new project, with attention to orchestration, data quality, idempotency, and future scale.
KlaviyoExplain how to reduce overfitting using regularization, validation, and model selection.
KlaviyoApproach for improving a model's accuracy by checking errors, features, and tuning choices.
KlaviyoTests hypothesis testing, confidence intervals, and correct interpretation of metric changes.
KlaviyoTests production readiness across monitoring, reliability, and operational constraints.
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