Milliman Data Engineer Interview Questions
The questions to prepare for a Milliman Data Engineer interview. Questions from real interview reports rank first. Updated daily.
Detect cycles with Floyd's algorithm, then reverse an acyclic Kraft Heinz product feed linked list in place.
MillimanCompare generator expressions and list comprehensions by memory usage, execution model, and when each is preferable.
MillimanCalculate the longest consecutive login streak for each user using window functions and date manipulations.
MillimanExplain how FULL OUTER JOIN and LEFT JOIN differ when reconciling customer records across systems.
MillimanExplain normalization, why it improves data integrity, and when denormalization is a practical performance tradeoff.
MillimanExplain a LEFT JOIN, preserve unmatched policies, and optimize claim aggregation for PostgreSQL.
MillimanExplain a SQL query's joins and aggregations, identify logic issues, and produce a corrected PostgreSQL result.
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Approach for detecting and mitigating skew in PySpark pipelines using partitioning, join strategies, and runtime monitoring.
MillimanTests practical ETL experience using Python and SQL in data engineering workflows.
MillimanTests reliability practices for production data pipelines, including error handling and observability.
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