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Updated weekly · Last refresh Oct 17

Fanduel Data Engineer Interview Questions

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

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CodingStart here. 6 questions · ~55 min

Word Count With TestsMedium

Tests your ability to implement a data transformation and validate it with test-driven development.

Fanduel

Parse JSON Into a DatabaseMedium

Tests Python data parsing and practical loading into relational storage.

json parsingpython

Fanduel

Join Large Datasets With Python/SparkMedium

Tests distributed join understanding and practical implementation choices.

pythonspark

Fanduel

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SQL & Data Manipulation7 questions + 2 drills · ~84 min

Fix a Timeout on Multi-TB TableHard

Tests deep debugging of query plans, indexing/partitioning, and execution bottlenecks.

performancequery optimization

Fanduel

Database FundamentalsMedium

Evaluates your understanding of core database concepts relevant to data engineering.

databasestechnical knowledge

Fanduel

Optimizing Poorly Performing SQLHard

Practice

Practice drill

Optimize a PostgreSQL reporting query by reducing scanned rows, preserving unmatched records, and selecting the latest related review efficiently.

database optimizationlarge datasetsperformancePPriority Technology Holdings, LLC

Zillow

One

SQL for Bet Customer SegmentsMedium

Practice

Practice drill

Calculate settled bet win rates and find FanDuel customers winning at least 60% of three or more bets.

sql

Fanduel

Union Bank

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Pipelines14 questions · ~127 min

Redshift ExperienceMedium

Assesses your hands-on knowledge of Redshift for analytics workloads.

Fanduel

Ingestion Errors and RetriesMedium

Tests resilience patterns like retries, dead-letter handling, and idempotency.

error handlingdata ingestion

Fanduel

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Behavioral & Leadership19 questions · ~173 min

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