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Updated weekly · Last refresh Aug 30

CVS Health Data Engineer Interview Questions

The questions to prepare for a CVS Health Data Engineer interview. Questions from real interview reports rank first. Updated weekly.

31questions
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1
SQL & Data ManipulationStart here. 4 questions + 2 drills · ~54 min
Top Paid Per DepartmentEasy
Practice

Find the top 3 highest-paid employees in each department using window functions.

Window FunctionsRankingCVS Health
Ranking Trial Results with Window FunctionsEasy

Explain how RANK(), DENSE_RANK(), and ROW_NUMBER() differ when ordering tied clinical trial results.

Window FunctionsRankingData WranglingCVS Health
SQL: 7-Day Rolling AverageMedium
Practice
Practice drill

Calculate each CVS store's 7-day rolling sales average using a CTE, aggregation, join, and window function.

Window FunctionsDate FunctionsRunning TotalsCVS Health
SQL: Store Performance and MarginHard
Practice
Practice drill

Join CVS store, sales, and inventory data to calculate margin, rank stores, and flag underperforming locations.

JoinsGroup ByAggregationsCVS Health
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2
Pipelines7 questions · ~60 min
API Ingestion With Rate LimitsEasy

Discuss integrating a third party API into a pipeline and handling rate limits without duplicating or losing data.

ToolsIdempotencyDependenciesCVS Health
Data Governance in PipelinesMedium

Describe a practical approach to data governance across shared data pipelines, including quality, ownership, lineage, and controlled data access.

InfrastructureQualityCVS Health
End-to-End Streaming ETL DesignHard

Tests end-to-end pipeline design for streaming ingestion, transformation, and warehouse storage.

Stream ProcessingAPIsETLCVS Health
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3
Coding5 questions · ~43 min
Python List vs Tuple UsageEasy

Compare Python lists and tuples, including mutability, performance, and when each should be used.

tupleslistsData StructuresCVS Health
String or Array Coding ChallengeMedium

Tests coding fundamentals and ability to implement standard algorithms correctly and efficiently.

Hash TablesArraysStringsCVS Health
Pandas Merge With FilteringMedium

Tests practical data wrangling skills with Pandas, including joins, NA handling, and date filters.

pandasData WranglingpythonCVS Health
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4
Behavioral & Leadership15 questions · ~129 min
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The finish line: interview-readyComplete all 31 questions plus 2 hands-on drills to finish this plan.