Kotak Data Scientist Interview Questions
The questions to prepare for a Kotak Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Calculate each user's running order total over time using a window function.
Use CTEs, date filtering, aggregation, and a LEFT JOIN to find Kotak customers who purchased in January but not February.
Calculate each user's seven-day rolling average of daily events using PostgreSQL window functions.
BounteousFFreelancerBBoston Tech IndiaDesign an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.
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Use training, validation, and cross-validation behavior to distinguish underfitting from overfitting in supervised models.
Explain how to validate data quality and statistical reliability before trusting analysis results.
Define a success metric for a new feature that captures real user value, not just raw usage.
Tests ability to choose appropriate metrics and statistical evaluation methods.
Investigate whether a performance decline is seasonal or a real product issue.