MSCI Data Engineer Interview Questions
The questions to prepare for a MSCI Data Engineer interview. Questions from real interview reports rank first. Updated weekly.
Merge two sorted arrays into one sorted array using a two-pointer linear scan.
MSCITests your ability to implement an efficient top-N solution under coding interview constraints.
MSCITests your coding ability for data manipulation tasks in a typical platform-style prompt.
MSCIApproach for validating ETL data with schema, business rule, and pipeline-level checks.
MSCICompare ETL and ELT, and explain when ELT is the better pipeline pattern.
MSCIApproach for maintaining data quality and integrity across ETL pipelines.
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Explain SQL vs NoSQL trade-offs, including schema design, consistency, scaling, and query flexibility.
MSCITests your understanding of data modeling and system trade-offs for pipeline design.
MSCICalculate each customer's 7-day rolling transaction average using PostgreSQL window frames and a customer lookup join.
MSCICalculate the monthly spending trends for customers using window functions and joins.
The Home Depot
Aviso
World Wide TechnologyAggregate monthly sales by product category and use LAG to calculate month-over-month changes.
Total Wine & More
Inc.
Benjamin Moore