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Updated weekly · Last refresh Aug 30

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 weekly.

11questions
~1htotal time
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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
Choosing Databricks vs AlternativesMedium

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

databricksWarner Bros. Discovery
PySpark Partitioning and ShufflingMedium

Evaluates your approach to controlling Spark performance and resource usage.

pysparkWarner Bros. Discovery
AWS Glue ETL Job ManagementMedium

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

data managementWarner Bros. Discovery
Batch vs Stream with KafkaMedium

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

Stream ProcessingBatch ProcessingWarner Bros. Discovery
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2
Behavioral & Leadership3 questions · ~24 min
Troubleshooting Pipeline FailuresMedium

Evaluates your incident response, debugging process, and communication during production issues.

data pipelineproduction issuesTroubleshootingWarner Bros. Discovery
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3
More topics2 questions · ~16 min
Optimizing SQL for WarehousesMedium

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

Warner Bros. Discovery
SQL Time-Window QueryEasy

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

sql queriesWarner 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
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
SQL Second Value and OOP ConceptsMedium
Practice
Practice drill

Find each eligible AVEVA asset's second valid temperature reading using CTEs, joins, and deterministic window ordering.

sql queriesAveva
Time From Trial to First PaidMedium
Practice
Practice drill

Use CTEs and joins to calculate the time from each user's first trial signup to first paid transaction.

sql queriesAdobe
The finish line: interview-readyComplete all 11 questions plus 3 hands-on drills to finish this plan.