Optum Data Scientist Interview Questions
The questions to prepare for a Optum Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Validate an SQL function that summarizes each customer's order count, total amount, and most recent order date.
OptumExplain and implement a complete supervised ML workflow from feature engineering and tuning through validation and production monitoring.
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Explain which model accuracy metrics to use for different prediction tasks and business error trade-offs.
OptumExplain LLM fundamentals and connect tokenization, pretraining, prompting, and fine-tuning to practical NLP projects.
OptumDesign a robust Python function to detect and treat outliers in highly skewed clinical measurements without distorting valid observations.
OptumIdentify and mitigate interference, metric contamination, SRM, peeking, and multiple-testing risks across concurrent experiments.
OptumWalk through scoping, building, deploying, and evaluating a new data science project under realistic uncertainty.
OptumDefine a meaningful engagement metric for a retail analytics mobile application and explain how to validate it.
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