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Updated weekly · Last refresh Nov 11

Programming Data Engineer Interview Questions

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

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1
PipelinesStart here. 4 questions · ~32 min
Batch vs Streaming ArchitecturesHard

Explain batch and streaming architectures and select the appropriate approach for Barclays data workloads.

Stream Processingdata pipelinesdata latencyProgramming
Production Monitoring for PipelinesHard

Explain how to monitor a production data pipeline for availability, performance, failures, and data quality.

Data Qualitygrafanadata pipelinesProgramming
Secure DevOps Data PipelinesMedium

Approach for embedding security controls into data pipeline delivery, orchestration, and operations.

InfrastructureOrchestrationQualityProgramming
Data Quality and Schema EvolutionMedium

Approach for handling schema changes and data quality checks in a high-volume data lake pipeline.

schema evolutionData ModelingQualityProgramming
2
Behavioral & Leadership3 questions · ~24 min
Debugging a Critical Production IssueMedium

Tests debugging judgment, prioritization, communication, and ownership during a high-impact production incident.

behavior under pressureDebuggingaccountabilityProgramming
Balancing Technical Debt and DeliveryMedium

Tests prioritization under pressure: balancing technical debt, delivery commitments, and stakeholder alignment with clear ownership.

Stakeholder ManagementOwnershipPrioritizationProgramming
Explaining Technical Trade-offs ClearlyMedium

Tests whether you can translate complex engineering trade-offs into clear business decisions for non-technical stakeholders.

technical communicationTrade-offsStakeholder ManagementProgramming
3
More topics1 question · ~8 min
High-Throughput Real-Time IngestionHard

Design a fault-tolerant, low-latency ingestion pipeline with real-time validation, ML quality checks, and replayable processing.

system architecturedistributed systemsdata ingestionProgramming

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