Dataford
Top 26
Prep plan
Updated weekly · Last refresh Sep 20

Egen Data Engineer Interview Questions

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

26questions
~4htotal time
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1
SQL & Data ManipulationStart here. 6 questions + 2 drills · ~75 min
SQL vs NoSQL DifferencesEasy
Practice

Query a comparison table to present the key structural and operational differences between SQL and NoSQL databases.

nosqlJoinsData WranglingEgen
Pivot Events with SQL and PythonMedium

Tests your ability to translate event data into analytical shapes using SQL and Python.

Data ManipulationsqlpythonEgen
SQL Join and Filter QueryEasy
Practice
Practice drill

Filter Marketing Evolution campaign records by channel and conversion threshold using SELECT, WHERE, and ORDER BY.

JoinsData WranglingCase WhenKomodo HealthMarketing EvolutionEgen
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
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2
Pipelines10 questions · ~92 min
Design an ETL Pipeline for Large DatasetsMedium

Design an ETL pipeline to process 10TB of data daily from multiple sources into a data warehouse with strict data quality checks.

InfrastructureETLData ModelingEgen
Cloud AI Deployment Pipeline ExperienceMedium

Discuss experience building cloud-based AI pipelines, including orchestration, processing patterns, infrastructure choices, and data quality controls.

InfrastructureToolsQualityEgen
Data Quality and Schema EvolutionMedium

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

schema evolutionData ModelingQualityEgen
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3
Coding5 questions · ~46 min
Code Walkthrough and TestingHard

Evaluates depth of engineering understanding, design reasoning, and testing practices.

oopairflowEgen
Python and SQL FundamentalsMedium

Assesses core Python, SQL, and cloud fundamentals for day-to-day data engineering work.

Data StructuressqlpythonEgen
Python Coding ChallengesEasy

Assesses your ability to solve basic Python coding challenges and explain your approach clearly.

pythonEgen
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4
Behavioral & Leadership5 questions · ~46 min
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The finish line: interview-readyComplete all 26 questions plus 2 hands-on drills to finish this plan.