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Updated weekly · Last refresh Aug 30

Unisys QA Engineer Interview Questions

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

30questions
~4htotal time
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1
SQL & Data ManipulationStart here. 3 questions + 2 drills · ~45 min
Second Highest Trader SalaryEasy
Practice
Recently asked

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

SubqueriesRankingSortingUnisys
Customer Orders: LEFT vs INNER JOINEasy

Explain how INNER JOIN and LEFT JOIN differ, and when to use each for matched-only versus all-left-row analysis.

JoinsData WranglingGroup ByUnisys
SQL Indexes and PerformanceMedium

Tests your ability to explain indexing strategies and performance tradeoffs in SQL queries.

performanceindexessqlUnisys
7-Day Rolling Active UsersMedium
Practice
Practice drill

Compute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.

Window FunctionsDate FunctionsRunning TotalsMetaSpotifyMeta IT
Top Customers by Net SalesMedium
Practice
Practice drill

Compute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.

SubqueriesJoinsData WranglingGain DigitalTCSZest AI
2
Coding4 questions · ~34 min
Manual Testing and OOPMedium

Evaluates your breadth of QA skills across manual testing and Java-based automation fundamentals.

manual testingjavaUnisys
Python String and Leap YearMedium

Evaluates your ability to implement core programming tasks relevant to QA automation and tooling.

TestingpythonUnisys
Find Repeated ElementsMedium

Tests your problem-solving skills and ability to implement common QA-related data checks.

string manipulationAlgorithmsUnisys
Java and C++ for QAMedium

Assesses your coding background and how you use Java and C++ in QA activities.

LanguagesProgrammingUnisys

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3
Behavioral & Leadership23 questions · ~193 min
Prioritizing Critical QA CoverageEasy

Tests prioritization and ownership in QA when release timelines are tight and full test coverage is not possible.

self assessmentinterview preparationbasicsUnisys
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The finish line: interview-readyComplete all 30 questions plus 2 hands-on drills to finish this plan.