Citi Data Scientist Interview Questions
The questions to prepare for a Citi Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Rank valid transactions by amount within each department and month, returning the three highest-value rows per group.
CitiDiagnose a sharp banking KPI decline after a Citi model deployment by separating data, population, model, and operational causes.
CitiExplain a production RAG pipeline from query processing and retrieval through reranking, generation, grounding, and evaluation.
CitiDesign a statistically defensible process for detecting, imputing, and validating missing or corrupted financial data without adding bias.
CitiIdentify major online experimentation pitfalls and explain practical mitigations for SRM, network effects, peeking, and novelty.
CitiTests whether the candidate understands APIs as contracts between software components, including endpoints, inputs, outputs, and errors.
CitiHow to evaluate a finance classification model on an imbalanced dataset using the right metrics and threshold.
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