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Adastra Group Data Engineer Interview Questions

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

25questions
~3htotal time
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1
PipelinesStart here. 6 questions · ~48 min
Explain ETL in Data EngineeringEasy

Explain the ETL process, why it matters, and how it fits into a practical data pipeline.

ETLOrchestrationQualityAAdastra Group
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityAAdastra Group
Optimize a Pipeline BottleneckMedium

Explain how you identified and fixed a bottleneck in a data pipeline while preserving correctness and operational visibility.

data processingperformancebottleneck optimizationAAdastra Group
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2
SQL & Data Manipulation3 questions + 3 drills · ~54 min
Fact vs Dimension TablesMedium

Assesses understanding of data warehouse modeling concepts.

sqlData ModelingAAdastra Group
Solve a Data ProblemMedium

Assesses problem-solving approach for data engineering tasks.

Data AnalysissqlAAdastra Group
SQL Join Types and Use CasesMedium

Evaluates ability to write correct SQL joins and reason about query semantics.

Data Manipulationsqldatabase conceptsAAdastra Group
SQL Window FunctionsMedium
Practice
Practice drill

Calculate three-day campaign spend moving averages for active Adastra Group campaigns using a CTE and window function.

AAdastra Group
Contact Center Agent Performance MetricsMedium
Practice
Practice drill

Compute daily agent call KPIs and SLA using joins, aggregations, and window ranking in a contact center model.

ETLAggregationsData ModelingADP
SQL Bookstore Schema PracticeMedium
Practice
Practice drill

Use a CTE, joins, and distinct aggregates to calculate Meta Logistics bookstore payment metrics.

sql queriessqlpythonMeta Logistics

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3
Coding3 questions · ~24 min
Python Fundamentals and Project ExperienceMedium

Evaluates Python fundamentals and ability to describe technical projects.

project experiencepythonAAdastra Group
Walk Through Code for BugsMedium

Tests debugging skills and code review judgment for data engineering code.

pythonAAdastra Group
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4
Behavioral & Leadership13 questions · ~105 min
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The finish line: interview-readyComplete all 25 questions plus 3 hands-on drills to finish this plan.