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Updated weekly · Last refresh Oct 17

Warner Bros. Discovery Data Engineer Interview Questions

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

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1
PipelinesStart here. 6 questions · ~48 min
On-Prem to AWS Migration ChallengesMedium

Assesses your experience with migration risks across data, infrastructure, and operations.

data migrationawsWarner Bros. Discovery
Batch vs Stream with KafkaMedium

Assesses your understanding of streaming versus batch design patterns with Kafka.

Stream ProcessingBatch ProcessingWarner Bros. Discovery
AWS Glue ETL Job ManagementMedium

Tests your ability to operate and optimize serverless ETL workflows in AWS Glue.

data managementWarner Bros. Discovery
PySpark Partitioning and ShufflingMedium

Evaluates your approach to controlling Spark performance and resource usage.

pysparkWarner Bros. Discovery
Choosing Databricks vs AlternativesMedium

Assesses your decision-making for compute frameworks based on workload requirements.

databricksWarner Bros. Discovery
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2
Behavioral & Leadership3 questions · ~24 min
Motivation for Media TechEasy

Assesses your motivation and fit for building data solutions in media and entertainment.

interestmotivationWarner Bros. Discovery
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3
More topics2 questions · ~16 min
SQL Time-Window QueryEasy

Evaluates your ability to write correct SQL for time-based customer behavior analysis.

sql queriesWarner Bros. Discovery
Optimizing SQL for WarehousesMedium

Tests your ability to improve performance and efficiency in large-scale SQL workloads.

Warner Bros. Discovery

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
7-Day Rolling Active UsersMedium
Practice
Recently asked
Practice drill

Compute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.

Window FunctionsDate FunctionsRunning TotalsMetaSpotifyMeta IT
Optimize Database PerformanceMedium
Practice
Practice drill

Aggregate active endpoint traffic and error rates efficiently for high-traffic application monitoring.

database optimizationJoinsperformanceWarner Bros. DiscoveryMicron Technology
Top Genres by DemographicMedium
Practice
Recently asked
Practice drill

Task Warner Bros. Discovery wants to compare viewing preferences across user demographic groups. Write a SQL query to find the three most-watched content ...

Date FunctionsJoinsRankingWarner Bros. Discovery
The finish line: interview-readyComplete all 11 questions plus 3 hands-on drills to finish this plan.