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Updated weekly · Last refresh Oct 17

athenahealth Data Engineer Interview Questions

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

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1
PipelinesStart here. 11 questions · ~91 min
ETL End-to-End DesignHard

Evaluates your ability to design and explain an end-to-end ETL pipeline.

pysparksqlpythonathenahealth
Anomaly Detection for Pipeline FailuresHard

Evaluates your approach to detecting pipeline anomalies and turning signals into actionable alerts.

data pipelinealertinganomaly detectionathenahealth
PySpark Window and Explode OperationsMedium

Evaluates your ability to combine common PySpark transformations to produce correct results.

Window FunctionspysparkData Manipulationathenahealth
Debugging Spark Out-of-MemoryHard

Evaluates your ability to troubleshoot OOM issues using metrics, logs, and tuning levers.

memory managementpysparkDebuggingathenahealth
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2
More topics4 questions · ~33 min
Generators vs Iterators for Large DataMedium

Explain how generators differ from iterators in Python and why they help process large datasets with lower memory usage.

iteratorsData Structurespythonathenahealth
Window Ranking in Ticket QueuesMedium

Explain SQL window functions and when to use ROW_NUMBER() versus DENSE_RANK() for ranked ticket analysis.

Window FunctionsRankingrow_numberathenahealth
Deep Copy vs Shallow CopyEasy

Explain shallow vs deep copy in Python, how nested objects behave, and when each approach is appropriate.

memory managementbasicspythonathenahealth
Long-Running Ingestion RobustnessMedium

Assesses your approach to reliability, failure handling, and safe cleanup in ingestion jobs.

data ingestionresource managementathenahealth

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 15 questions plus 3 hands-on drills to finish this plan.