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Updated weekly · Last refresh Aug 30

Integral Ad Science Software Engineer Interview Questions

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

38questions
~5htotal time
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1
ExecutionStart here. 5 questions · ~41 min
OOP for Scalable CodebasesMedium

Tests design principles for extensible engineering practices in IAS software systems.

software designscalabilityoopIntegral Ad Science
Extensible Class and Interface DesignMedium

Tests object-oriented design for maintainability and extension in evolving IAS product code.

Integral Ad Science
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2
Coding9 questions · ~73 min
Sorting Algorithms ProblemMedium

Tests algorithmic problem-solving and correctness under typical interview constraints.

SortingAlgorithmsIntegral Ad Science
Concurrent API EndpointHard

Tests backend engineering skills for concurrency, throughput, and correctness in IAS services.

apiperformanceconcurrencyIntegral Ad Science
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3
Security & Infrastructure3 questions · ~24 min
What Happens on an HTTP RequestMedium

Tests understanding of HTTP request flow and the components involved from client to server.

WebhttpIntegral Ad Science
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4
System Design3 questions · ~24 min
Anagrams Grouping and System DesignHard

Tests algorithmic implementation and system design reasoning under interview constraints.

system designIntegral Ad Science
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5
Behavioral & Leadership14 questions · ~114 min
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6
More topics4 questions · ~33 min
Optimize Slow SQL on Large DataHard

Tests query optimization skills, performance reasoning, and practical tuning approaches.

Performance Tuningquery optimizationsqlIntegral Ad Science
Metrics and Monitoring StrategyMedium

Evaluates how you instrument pipelines and use metrics to monitor reliability and performance.

monitoringMetricsIntegral Ad Science
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL Average Selling PriceMedium
Practice
Practice drill

Calculate weighted average selling prices by product using a date-range join, aggregation, and NULL handling.

leetcodesqlCostarCostar Group
Top Models Per Asset ClassEasy
Practice
Practice drill

Rank Balyasny research models by average return within each asset class using DENSE_RANK and aggregation.

performancesqlBalyasny Asset Management
Rank Top Service CategoriesEasy
Practice
Practice drill

Use RANK() and grouped revenue to find ServiceTitan's top three service categories in each region.

RankingperformancesqlServiceTitan
The finish line: interview-readyComplete all 38 questions plus 3 hands-on drills to finish this plan.