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Top 11
Prep plan
Updated weekly · Last refresh Sep 21
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WTW Software Engineer Interview Questions

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

11questions
~2htotal time
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1
CodingStart here. 3 questions · ~26 min
Maintainable Code Design PracticesEasy

Explain how to write maintainable code using clear abstractions, small functions, tests, and documentation.

RecursionHash TablesArraysWWTW
Object-Oriented Programming BasicsEasy

Tests your understanding of core OOP concepts and how you apply them in software design.

ArraysStringsWWTW
Debugging Production IssuesMedium

Tests your production debugging process, observability use, and incident-style troubleshooting judgment.

production issuesProblem SolvingDebuggingWWTW
2
Behavioral & Leadership6 questions · ~51 min
Making a Hard Decision Under PressureEasy

Tests how a candidate makes a difficult decision, weighs trade-offs, and owns the outcome under pressure.

LeadershipOwnershipDealing With AmbiguityWWTW
Hardest Recent WorkMedium

Tests your ability to describe complexity, tradeoffs, and outcomes from recent engineering work.

challengework experienceWWTW
Stepping Up as a LeaderMedium

Assesses leadership behaviors such as initiative, influence, and ownership under real constraints.

initiativeLeadershipteamworkWWTW
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3
More topics2 questions · ~17 min
Authentication vs AuthorizationEasy

Assesses your core security fundamentals and ability to distinguish auth concepts.

authenticationauthorizationWWTW
Optimizing a Database QueryMedium

Tests SQL reasoning, indexing, query plans, and performance troubleshooting.

Joinsquery optimizationAggregationsWWTW

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Freight Volume YoY GrowthMedium
Practice
Practice drill

Calculate 2024 freight volume growth by Uber Freight region compared with 2023.

Date FunctionsJoinsData AnalysisUber Freight
Optimize Slow Query or PipelineMedium
Practice
Practice drill

Optimize a PostgreSQL aggregation pipeline by filtering early, reducing join volume, and returning the highest-value active accounts.

data pipelinedatabase optimizationJoinsApple
Top User Cohorts by SessionsMedium
Practice
Practice drill

Rank signup-month cohorts by average sessions per user and return the three highest-performing cohorts.

JoinsGroup Byquery optimizationUnity Technologies
The finish line: interview-readyComplete all 11 questions plus 3 hands-on drills to finish this plan.