Klaviyo Data Scientist Interview Questions
The questions to prepare for a Klaviyo Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Calculate each customer's seven-day rolling average of daily revenue using PostgreSQL window functions.
KlaviyoCompute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
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Spotify
Meta ITDecide when randomization is infeasible or invalid and when a quasi-experiment is the better causal design.
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Approach for improving a model's accuracy by checking errors, features, and tuning choices.
KlaviyoBuild a classifier for a highly imbalanced dataset and choose metrics, sampling, and thresholds that fit the minority class.
KlaviyoDesign the core pipeline infrastructure for a new project, with attention to orchestration, data quality, idempotency, and future scale.
KlaviyoInvestigate a 15% engagement decline by decomposing the metric, isolating root causes, and proposing actions.
KlaviyoTests probability fundamentals and ability to compute outcomes for repeated trials.
KlaviyoTests how the candidate defines success metrics and evaluation plans for a new feature in Klaviyo's product.
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