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Updated weekly · Last refresh Aug 30

TransCore Software Engineer Interview Questions

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

27questions
~4htotal time
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1
SQL & Data ManipulationStart here. 6 questions + 2 drills · ~71 min
Second-Highest Transaction Amount QueryMedium
Practice

Find the second-highest distinct transaction amount using a subquery in PostgreSQL without LIMIT.

SubqueriesRankingsalaryTransCore
Clustered vs Non-Clustered IndexesMedium

Explain how clustered and non-clustered indexes differ in storage, lookup behavior, and query performance.

JoinsData WranglingTransCore
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
Resolve Conflicting Customer AttributesMedium
Practice
Practice drill

Use joins, CTEs, and row ranking to resolve conflicting customer profile values across ACME House systems.

JoinsData WranglingQualityRamsey SolutionsACME House
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2
Coding5 questions · ~43 min
Thread-Safe Singleton in C#Medium

Tests ability to implement correct concurrency-safe patterns in C#.

thread safetyTransCore
Async/Await vs Multi-ThreadingMedium

Tests understanding of concurrency models in C# and choosing the right approach for throughput and responsiveness.

multithreadingTransCore
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3
Pipelines4 questions · ~34 min
Microservices for Roadside SensorsHard

Tests distributed systems design for high ingestion scale, partitioning, and resilience.

InfrastructureStream ProcessingscalabilityTransCore
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4
Security & Infrastructure3 questions · ~26 min
Present a New LUN to UCS BladeMedium

Tests infrastructure and storage provisioning knowledge in a data center environment.

TransCore
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5
Behavioral & Leadership7 questions · ~60 min
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6
More topics2 questions · ~17 min
Timeline Estimation and RecoveryMedium

Tests planning discipline, risk management, and communication during schedule slippage.

RoadmappingRisk AssessmentScope ManagementTransCore
Traffic Signal Design and InstallationMedium

Evaluates system thinking from requirements through deployment for fielded infrastructure.

design processTransCore
The finish line: interview-readyComplete all 27 questions plus 2 hands-on drills to finish this plan.