TikTok USDS JV Data Scientist Interview Questions
The questions to prepare for a TikTok USDS JV Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Estimate the sample size needed to detect a meaningful change in customer satisfaction with a pre-registered experiment plan.
Design an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.
Define a success metric for a new feature that captures real user value, not just raw usage.
Assesses structured debugging of product metrics using data and causal reasoning.
Calculate each Hinge user's 30-day rolling average of daily interactions using CTEs and window functions.
Outline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.
Tests ability to translate fraud objectives into measurable, operational model metrics and evaluation criteria.
Assesses ability to communicate A/B testing validity using statistical significance.
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