Top 27
Prep plan
Updated weekly · Last refresh Oct 17

Empower Data Engineer Interview Questions

The questions to prepare for a Empower Data Engineer interview. Questions from real interview reports rank first. Updated daily.

27questions
~4htotal time
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1
PipelinesStart here. 16 questions · ~136 min
Handling Pipeline Errors at ScaleHard

Approach for stabilizing an automated workflow that is failing broadly, with focus on orchestration, data quality, idempotency, and rollback.

IdempotencyBackfillingQualityEmpower
Cloud Pipeline Data SecurityMedium

Key security considerations for a cloud data pipeline, from ingestion through storage, orchestration, and monitoring.

InfrastructureGovernanceETLEmpower
Production Pipeline Quality MonitoringMedium

Approach for adding data quality checks, observability, and production monitoring to a data pipeline.

Data QualitymonitoringobservabilityEmpower
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2
SQL & Data Manipulation7 questions + 2 drills · ~80 min
Deep SQL QuestionHard

Evaluates advanced SQL reasoning and correctness checks under interview conditions.

sqlEmpower
Top 10 Customers SQLEasy
Practice

Use SUM, GROUP BY, ORDER BY, and LIMIT to find the top 10 Healthfirst Marketplace customers by purchase total.

RankingGroup ByAggregationsEmpower
Normalization vs DenormalizationEasy

Tests data modeling tradeoffs for performance, integrity, and analytics at Empower.

JoinsData WranglingGroup ByEmpower
Inner Join vs Outer JoinEasy
Practice
Practice drill

Demonstrate how INNER JOIN and FULL OUTER JOIN handle matching and unmatched rows.

JoinsData Wranglingnull valuesRocketNeenOpaleBay
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
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3
Coding3 questions · ~26 min
Coding a ProgramMedium

Tests your practical coding approach and ability to implement a working solution.

ProgrammingEmpower
Implement an Algorithm on DataMedium

Tests ability to translate algorithmic logic into working code for data processing tasks.

Hash TablesArraysSortingEmpower
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4
More topics1 question · ~9 min
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The finish line: interview-readyComplete all 27 questions plus 2 hands-on drills to finish this plan.