Zalando Data Scientist Interview Questions
The questions to prepare for a Zalando 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.
Explain how to profile, clean, and standardize missing or dirty data before analysis.
Calculate each user's seven-day rolling average of daily events using PostgreSQL window functions.
BounteousFFreelancerBBoston Tech IndiaIdentify each user's consecutive website activity streaks using date arithmetic and SQL window functions.
Intuit Management Consultancy
Chewy
AllstateTests your ability to design and interpret product experiments for conversion outcomes.
Diagnose why a high traffic commerce product has weak add-to-cart conversion, and outline hypotheses and tests.
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Design a landing-page A/B test with clear metrics, power, and significance criteria while guarding against common experiment pitfalls.
Tests your statistical knowledge and terminology clarity.
Tests foundational knowledge of classification models and their assumptions.
Evaluates your metric design for longitudinal user behavior measurement.