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Updated weekly · Last refresh Aug 30

Aetna Software Engineer Interview Questions

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

33questions
~5htotal time
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1
CodingStart here. 11 questions · ~101 min
Reverse String In PlaceEasy
Practice

Reverse a string using a two-pointer approach by converting it to a mutable character list in Python.

CodingStringsProgrammingAetna
Parse Large Files With PythonMedium

Tests practical Python skills for efficient text processing and pattern extraction.

data parsingpythonperformance analysisAetna
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2
SQL & Data Manipulation5 questions + 2 drills · ~66 min
Second Highest Trader SalaryEasy
Practice

Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.

SubqueriesRankingSortingAetna
SQL Tuning for MillionsHard

Tests performance engineering skills for large-scale SQL workloads.

Performance TuningindexessqlAetna
SQL Join ScenariosMedium

Tests understanding of SQL join semantics and practical data modeling choices.

JoinssqlData ModelingAetna
Rolling 30-Day Claim Totals SQLMedium
Practice
Practice drill

Use a date-based window function to calculate each active member's rolling 30-day paid claim total.

Window FunctionsData ManipulationsqlAetna
Rolling Member Claim Totals SQLMedium
Practice
Practice drill

Use PostgreSQL window functions to calculate cumulative and rolling three-month claim metrics for Aetna members.

Window FunctionsData AnalysissqlAetna
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3
Behavioral & Leadership14 questions · ~129 min
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4
More topics3 questions · ~28 min
Pipeline to Tableau DashboardsMedium

Tests your ability to design end-to-end data flows for analytics consumption.

Data QualityETLAetna
JVM Memory and CachesHard

Evaluates understanding of JVM memory behavior and low-level performance considerations.

performanceAetna
Hadoop and MapReduce BasicsMedium

Tests understanding of distributed data processing concepts and Hadoop architecture.

data integrationBatch ProcessinghadoopAetna
The finish line: interview-readyComplete all 33 questions plus 2 hands-on drills to finish this plan.