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Updated weekly · Last refresh Aug 30

Ipsos Data Engineer Interview Questions

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

22questions
~3htotal time
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1
PipelinesStart here. 9 questions · ~72 min
Cloud Storage in Data PipelinesEasy

Discuss how cloud storage fits into ETL pipelines, including staging, data quality, and operational monitoring.

InfrastructureETLIpsos
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityIpsos
Consistency Across Data SourcesMedium

Approach for keeping records aligned and trustworthy when multiple source systems feed the same pipeline.

InfrastructureQualityIpsos
Design Real-Time Feature PipelineHard

Design a real-time feature pipeline processing 120K events/sec into low-latency feature tables and warehouse models with replay and quality controls.

InfrastructureStream ProcessingOrchestrationIpsos
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2
SQL & Data Manipulation5 questions + 3 drills · ~70 min
Pyspark and SQL Scenario QuestionsHard

Evaluates advanced PySpark and SQL problem-solving in realistic scenarios.

pysparksqlIpsos
Optimizing Slow SQL QueriesMedium

Evaluates performance tuning skills for production-grade SQL workloads.

Data ManipulationIpsos
Databricks, PySpark, and SQL BasicsEasy

Assesses foundational knowledge of Databricks, PySpark, and SQL concepts.

pysparksqldatabricksIpsos
Second Highest Without AggregatesHard
Practice
Practice drill

Find the second highest salary in each department without using aggregate functions.

SubqueriesRankingSelf-JoinsCredit GenieDevoteamCisco Restaurant + Bar
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
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3
Behavioral & Leadership8 questions · ~64 min
Resolving Technical Conflict on ApproachMedium

Tests conflict resolution in technical disagreements, including communication, influence without authority, and ownership of the final outcome.

Conflict ResolutionStakeholder ManagementCommunicationIpsos
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The finish line: interview-readyComplete all 22 questions plus 3 hands-on drills to finish this plan.