Top 15
Prep plan
Updated weekly · Last refresh Sep 25
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Zensar Data Engineer Interview Questions

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

15questions
~2htotal time
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1
PipelinesStart here. 8 questions · ~64 min
Data Integrity During System MigrationHard

Approach for preserving correctness during a pipeline migration, including validation, replay safety, and controlled cutover.

ETLIdempotencyQualityZZensar
Troubleshooting EC2 to DatabaseMedium

Assesses diagnostic approach for network, security, and configuration issues connecting EC2 to databases.

cloud servicesTroubleshootingZZensar
Resolving Pipeline BottlenecksMedium

Tests ability to identify performance bottlenecks and drive effective remediation in data pipelines.

data engineeringZZensar
Optimizing PySpark PerformanceMedium

Tests ability to tune PySpark jobs for performance and scalability on large datasets.

pysparkdata processingperformance optimizationZZensar
Partitioning for Athena CostMedium

Tests ability to design partitioning strategies that lower Athena query costs and improve performance.

cost optimizationZZensar
AWS Glue in Data PipelinesMedium

Assesses understanding of AWS Glue components and how they fit into end-to-end pipelines.

data pipelinecloud infrastructureZZensar
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2
Behavioral & Leadership6 questions · ~48 min
Constructive Feedback in Code ReviewsEasy

Tests how you give and receive code review feedback with professionalism, clarity, and a focus on code quality and team growth.

CommunicationfeedbackcollaborationZZensar
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3
More topics1 question · ~8 min
Adding Match Indicator ColumnMedium

Tests your SQL and DataFrame manipulation skills for creating derived match indicators.

Data ManipulationZZensar

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 15 questions plus 3 hands-on drills to finish this plan.