Top 28
Prep plan
Updated weekly · Last refresh Aug 30

Expleo Group Data Engineer Interview Questions

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

28questions
~4htotal time
Track your progressSign up free to work through all 28 questions and resume where you left off.
Start practicing free →
1
SQL & Data ManipulationStart here. 6 questions + 2 drills · ~71 min
Top Customers SQL QueryEasy
Practice

Aggregate customer sales volume and return Pyramid Consulting's top 10 customers in descending order.

RankingGroup ByAggregationsExpleo Group
SQL vs NoSQL Trade-offsEasy

Explain SQL vs NoSQL trade-offs, including schema design, consistency, scaling, and query flexibility.

JoinsData WranglingAggregationsExpleo Group
Structured vs Unstructured Data BasicsEasy

Explain how structured and unstructured data differ in format, storage, and how easily they can be queried with SQL.

Data WranglingETLExpleo Group
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
Contact Center Agent Performance MetricsHard
Practice
Practice drill

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

ETLAggregationsData ModelingADP
More SQL & Data Manipulation questions with a free account
2
Pipelines8 questions · ~69 min
Diagnose an Integration Pipeline IssueMedium

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

ToolsDependenciesQualityExpleo Group
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityExpleo Group
Secure DevOps Data PipelinesMedium

Approach for embedding security controls into data pipeline delivery, orchestration, and operations.

InfrastructureOrchestrationQualityExpleo Group
More Pipelines questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
3
Coding5 questions · ~43 min
Time Complexity of Sorting AlgorithmsEasy

Compare common sorting algorithms by best, average, and worst-case time complexity and explain when each is appropriate.

MathArraysSortingExpleo Group
Clean a Dataset in PythonMedium

Tests your ability to write practical data cleaning code with attention to correctness and edge cases.

Hash TablesArraysStringsExpleo Group
More Coding questions with a free account
4
Behavioral & Leadership9 questions · ~77 min
More Behavioral & Leadership questions with a free account
The finish line: interview-readyComplete all 28 questions plus 2 hands-on drills to finish this plan.