Citigroup Data Scientist Interview Questions
The questions to prepare for a Citigroup Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Use CTEs and ROW_NUMBER to return each customer's top three posted Citi card transactions per month.
CitigroupFind the top 3 customers in each region by transaction volume using joins, aggregation, and window ranking.
JPMorganChase
Silicon Valley Bank
Banco SantanderDesign an ML system that ranks banking offers for online customers using retrieval, ranking, and re-ranking.
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Size an A/B test for a new Asana onboarding flow using a 2pp activation MDE, explicit guardrails, and a pre-registered launch rule.
CitigroupExplain practical strategies for handling missing data and how to validate that the chosen approach improves model performance.
CitigroupInvestigate whether a conversion drop came from product friction, traffic mix, or an experiment artifact.
CitigroupPick the right metrics to evaluate a machine learning model and explain why they fit the problem.
CitigroupDefine a success metric for a new feature that captures real user value, not just raw usage.
CitigroupTests statistical reasoning for deciding whether a model improvement is reliable enough to deploy.
Citigroup