Google Cloud Data Engineer Interview Questions

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

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PipelinesStart here. 5 questions · ~53 min

Cloud Pipeline Data SecurityMedium

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

InfrastructureGovernanceETL

Google Cloud

Handling Missing Data in PipelinesMedium

Approach for handling missing data in an ML data pipeline, including validation, imputation, and safe downstream consumption.

InfrastructureETLBatch Processing

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Coding5 questions · ~53 min

Palindrome Coding ApproachMedium

Assesses your algorithm design and complexity awareness for coding tasks.

Algorithms

Google Cloud

Modular Python ETL TransformationsMedium

Practice

Normalize, validate, deduplicate, and sort semi-structured records using a modular Python ETL function.

deduplicationclean codeETL

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Behavioral & Leadership7 questions · ~74 min

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More topics4 questions · ~42 min

Handling Architectural Stakeholder ConflictMedium

Tests conflict resolution and influence when a stakeholder challenges an architectural decision with meaningful business or technical stakes.

Conflict ResolutionStakeholder ManagementCommunication

Google Cloud

What Is Google Cloud PlatformMedium

Evaluates your understanding of Google Cloud services and their purpose.

cloud services

Google Cloud

BigQuery vs Cloud SQLMedium

Tests your ability to choose the right Google Cloud data platform and reason about performance tradeoffs.

Google Cloud

Optimize a Slow BigQuery QueryMedium

Tests your approach to diagnosing bottlenecks and improving query performance on Google Cloud.

Performance Tuningquery optimization

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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 Totals