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Dataford
Top 25
Prep plan
Updated weekly · Last refresh Oct 17

Spot & Tango Software Engineer Interview Questions

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

25questions
~3htotal time
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1
System DesignStart here. 10 questions · ~82 min
Mobile-Responsive Web OptimizationMedium

Assesses practical performance and UX optimization for mobile web experiences.

performanceweb optimizationSpot & Tango
Simple Shopping Cart DesignHard

Evaluates your ability to design a cart system with clear data flow and interfaces.

Spot & Tango
REST API Integration for UIMedium

Evaluates how you connect frontend requirements to backend REST APIs.

api integrationSpot & Tango
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2
Coding3 questions · ~24 min
Reusable React ComponentsMedium

Tests your component design skills for reuse, performance, and maintainability.

reactperformanceSpot & Tango
Unit and Integration TestingMedium

Tests your testing strategy for reliability and maintainability.

TestingSpot & Tango
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3
Behavioral & Leadership9 questions · ~73 min
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4
More topics3 questions · ~24 min
SQL Query PerformanceMedium

Tests your SQL performance tuning and query design skills.

query optimizationsqlSpot & Tango
Web Vulnerability ProtectionMedium

Tests your knowledge of web security risks and practical mitigation techniques.

security best practicesSpot & Tango
Managing React StateMedium

Evaluates your React state management approach and trade-offs.

reactstate managementSpot & Tango

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Optimizing Poorly Performing SQLHard
Practice
Practice drill

Optimize a PostgreSQL reporting query by reducing scanned rows, preserving unmatched records, and selecting the latest related review efficiently.

database optimizationlarge datasetsperformancePPriority Technology Holdings, LLCZillowOne
Optimize SQL QueriesMedium
Practice
Practice drill

Optimize a PostgreSQL aggregation query by filtering early, reducing rows before joins, and returning qualifying active customers.

database optimizationperformanceindexesSofteamSSoftware Medical InformaticsGlassdoor
Optimize Database PerformanceMedium
Practice
Practice drill

Aggregate active endpoint traffic and error rates efficiently for high-traffic application monitoring.

database optimizationJoinsperformanceWarner Bros. DiscoveryMicron Technology
The finish line: interview-readyComplete all 25 questions plus 3 hands-on drills to finish this plan.