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Updated weekly · Last refresh Sep 29

Realtor Backend Engineer Interview Questions

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

24questions
~3htotal time
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1
System DesignStart here. 17 questions · ~136 min
Messaging Queue Trade-OffsMedium

Evaluates your ability to compare queue options and choose the right approach for reliability and throughput.

Trade-offssystem architectureRealtor
Queue vs Direct CallsMedium

Assesses decision-making for async messaging and failure handling.

Realtor
Microservices Consistency Across ServicesMedium

Evaluates your consistency strategy across service boundaries in distributed systems.

data consistencyarchitecturemicroservicesRealtor
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2
More topics7 questions · ~56 min
High Availability DeploymentsHard

Tests your deployment practices to minimize downtime and user impact.

high availabilitystrategyRealtor
Service-to-Service AuthZ and AuthNMedium

Tests your security approach for identity, access control, and trust boundaries in services.

authenticationauthorizationRealtor
Database Sharding StrategyHard

Tests your approach to partitioning data for scale and performance.

scalabilitypartitioningRealtor
Maintainability vs Delivery SpeedMedium

Assesses how you manage engineering trade-offs between velocity and quality.

Trade-offscode maintainabilityfeature deliveryRealtor
Optimize a Slow Database QueryMedium

Tests your debugging and performance tuning skills for database queries.

database optimizationsqlRealtor
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL for Last Lead by DateEasy
Practice
Practice drill

Use ROW_NUMBER and a LEFT JOIN to find each Realtor agent's most recently generated lead.

sqlRealtor
Rank Properties by CityMedium
Practice
Practice drill

Rank properties by price within each city and return the three highest-priced properties per city.

Window FunctionsData ManipulationRankingRealtor
SQL Deduping Latest RecordsMedium
Practice
Practice drill

Identify duplicate property records and return only the latest row from each duplicate group.

Window Functionsdata cleaningRankingRealtor
The finish line: interview-readyComplete all 24 questions plus 3 hands-on drills to finish this plan.