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Updated weekly · Last refresh Aug 30

Adtalem Global Education Data Engineer Interview Questions

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

22questions
~3htotal time
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1
SQL & Data ManipulationStart here. 6 questions + 2 drills · ~72 min
SQL Duplicate DetectionEasy
Practice

Find duplicate customer profiles by grouping on identifying fields and returning only repeated records.

Group ByHavingAggregationsAdtalem Global Education
Handling Missing and Dirty SQL DataMedium

Explain how to profile, clean, and standardize missing or dirty data before analysis.

Data WranglingCase WhenQualityAdtalem Global Education
Optimize SQL Query PerformanceHard

Tests ability to diagnose bottlenecks and apply indexing, query rewriting, and execution-plan driven tuning.

database managementAdtalem Global Education
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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2
Pipelines13 questions · ~112 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityAdtalem Global Education
Optimize Multi-Terabyte ETL PipelineMedium

Explain how you improved a slow ETL pipeline on multi-terabyte data, including bottleneck analysis, tuning choices, and validation.

ETL optimizationdata processingperformanceAdtalem Global Education
Describe a Complex Transformation PipelineMedium

Explain a complex ETL transformation you built, including the main challenges and how you handled them.

ETLData ModelingQualityAdtalem Global Education
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3
Coding3 questions · ~26 min
Test Performance of Data ProcessingHard

Tests ability to design benchmarks, measure throughput and latency, and validate performance improvements.

ArraysSearchingSortingAdtalem Global Education
CSV to Structured Database ScriptHard

Tests ability to implement data transformation code and load results into a structured store.

Hash TablesArraysStringsAdtalem Global Education
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The finish line: interview-readyComplete all 22 questions plus 2 hands-on drills to finish this plan.