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Updated weekly · Last refresh Aug 30

Wurl Software Engineer Interview Questions

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

18questions
~3htotal time
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1
CodingStart here. 5 questions · ~55 min
First Non-Repeating ElementEasy
Practice

Find the first non-repeating integer in an array using frequency counting and a second scan.

Hash TablesArraysSearchingWurl
Reverse String Without Built-insEasy
Practice

Reverse a string using basic iteration and swapping, without built-in reverse helpers.

Basic Algorithmsfunction implementationStringsWurl
Merge Overlapping Time IntervalsMedium
Practice

Merge overlapping intervals by sorting on start time, then scanning once to combine intersecting ranges.

time complexityAlgorithmsperformance analysisWurl
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2
Behavioral & Leadership9 questions · ~99 min
Resolving Technical Conflict on ApproachMedium

Tests conflict resolution in technical disagreements, including communication, influence without authority, and ownership of the final outcome.

Conflict ResolutionStakeholder ManagementCommunicationWurl
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3
More topics4 questions · ~44 min
Caching Layer for DB ReadsMedium

Tests caching design choices, invalidation strategy, and performance tradeoffs.

InfrastructureperformanceQualityWurl
Estimation and Deadline RiskMedium

Tests planning discipline, communication, and mitigation strategies under schedule pressure.

Success CriteriaRoadmappingRisk AssessmentWurl
SQL and Excel ProficiencyMedium

Assesses practical data skills relevant to analytics and operational reporting.

sqlExcelWurl
Scale Backend for Traffic SpikesMedium

Tests system design knowledge for elasticity, reliability, and performance under load.

Trade-offsRisk AssessmentScope ManagementWurl

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
Top-Performing Products QueryMedium
Practice
Practice drill

Rank Tesco products by Q2 revenue using a date-filtered join, aggregation, and RANK window function.

sqlperformance analysisTTesco
Basic SQL and String ReverseEasy
Practice
Practice drill

Reverse Costar property search strings with PostgreSQL and flag rows whose stored expected value does not match.

sql queriesstring manipulationCostar
The finish line: interview-readyComplete all 18 questions plus 3 hands-on drills to finish this plan.