Top 21
Prep plan
Updated weekly · Last refresh Aug 30

Adentis Portugal Data Engineer Interview Questions

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

21questions
~3htotal time
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1
SQL & Data ManipulationStart here. 3 questions + 2 drills · ~46 min
2
Pipelines14 questions · ~123 min
Model Analytics Warehouse for RetailEasy

Design an ELT pipeline and warehouse data model in Snowflake for retail analytics, including dimensional modeling, orchestration, and data quality.

InfrastructureData ModelingQualityAdentis Portugal
Complex ETL Pipeline ArchitectureHard

Explain the architecture of a complex ETL pipeline built from scratch, including orchestration, data quality, idempotency, and backfill strategy.

InfrastructureETLData ModelingAdentis Portugal
Diagnose an Integration Pipeline IssueMedium

Structured approach to diagnose failures in an ETL integration, from source extraction through orchestration, data quality, and idempotent recovery.

ToolsDependenciesQualityAdentis Portugal
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3
Coding3 questions · ~26 min
Optimizing Sorting for Large DatasetsMedium

Explain how to choose and optimize sorting approaches for large datasets based on memory, data distribution, and stability requirements.

ArraysSortingGreedyAdentis Portugal
Deduplicating Records FunctionMedium

Tests algorithmic thinking and practical handling of duplicates for reliable datasets.

Hash TablesArraysSortingAdentis Portugal
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4
More topics1 question · ~9 min
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The finish line: interview-readyComplete all 21 questions plus 2 hands-on drills to finish this plan.