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Updated weekly · Last refresh Aug 30

Inetum Data Engineer Interview Questions

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

21questions
~3htotal time
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1
PipelinesStart here. 7 questions · ~58 min
Configuration Consistency Across EnvironmentsMedium

Approach for keeping pipeline configuration aligned across environments while controlling drift, secrets, and release risk.

IdempotencyDependenciesQualityInetum
Kubernetes and Docker in PipelinesEasy

Discuss practical experience using Docker and Kubernetes to package, run, and monitor pipeline workloads.

InfrastructureToolsQualityInetum
Data Integrity During System MigrationHard

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

ETLIdempotencyQualityInetum
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2
Coding4 questions · ~33 min
Parse Nested JSON in ScalaMedium

Tests your ability to implement robust JSON parsing and validation in Scala for cloud data sources.

json parsingfunctionsInetum
Spark DataFrame vs Dataset vs RDDMedium

Tests your Spark API knowledge and decision-making for performance and type safety.

abstractionData StructuressparkInetum
Spark Lazy EvaluationEasy

Tests your understanding of Spark execution semantics and how jobs are triggered.

functionsbasicssparkInetum
Optimizing Skewed Spark JoinsHard

Tests your ability to diagnose and fix performance issues caused by data skew in Spark joins.

Joinssparkperformance analysisInetum

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3
Behavioral & Leadership10 questions · ~83 min
Persuading a Resistant Senior StakeholderMedium

Tests influence without authority in a high-stakes disagreement with a senior stakeholder, including communication, conflict handling, and outcome ownership.

Influence Without AuthorityStakeholder ManagementCommunicationInetum
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The finish line: interview-readyComplete all 21 questions to finish this plan.