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Updated weekly · Last refresh Oct 17

Medpace Data Engineer Interview Questions

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

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1
SQL & Data ManipulationStart here. 10 questions · ~121 min
SQL High-Level Topic QuizMedium
Practice

Demonstrate query-writing and validation skills by summarizing qualifying study sites and ranking enrollment totals.

Joinsdata validationAggregationsMedpace
SQL Joins and When to Use ThemMedium
Practice

Explain SQL join types and demonstrate how unmatched clinical trial records are preserved in a PostgreSQL query.

null handlingJoinsjoin typesMedpace
Join Types and Clinical ReportingMedium
Practice

Use a LEFT JOIN to preserve active Medpace trials without enrollment records and avoid incomplete clinical reporting.

null handlingJoinsdata integrityMedpace
Second Highest Without AggregatesHard
Practice

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

SubqueriesRankingSelf-JoinsMedpace
Complex SQL across Partitioned TablesHard
Practice

Aggregate visits and laboratory findings across clinical partition tables by site, treatment arm, and month.

aggregationlarge datasetsCTEsMedpace
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2
Behavioral & Leadership17 questions · ~206 min
Clinical Data Coding BackgroundEasy

Tests clinical data coding experience, accuracy, judgment, ownership, and handling of coding discrepancies.

attention managementbehavioralattention to detailMedpace
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3
More topics2 questions · ~24 min
Converting Unstructured Web DataHard

Design an ETL pipeline that extracts unstructured website content, normalizes it, validates quality, and stores structured records for analysis.

Data Qualitydata parsingETLMedpace
Data Warehousing and ETL DesignHard

Explain data warehousing principles and how you design reliable, maintainable ETL pipelines.

Data Qualitypipeline designETLMedpace

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