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Updated weekly · Last refresh Sep 22

Expedia Group Backend Engineer Interview Questions

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

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1
System DesignStart here. 4 questions · ~32 min
Caching Travel Itinerary DataMedium

Assesses caching design choices to improve latency and throughput for travel itinerary reads.

performance optimizationcachingExpedia Group
Fault Tolerance in MicroservicesHard

Tests fault-tolerance design using patterns like retries, timeouts, and graceful degradation.

fault tolerancemicroservicesExpedia Group
High-Scale Hotel Booking SystemHard

Evaluates system design for Expedia Group booking reliability, scalability, and concurrency control.

scalabilityExpedia Group
Real-Time Travel Data AggregationHard

Tests system design skills for real-time stream processing and scalable aggregation for travel data.

data processingdistributed systemsExpedia Group
2
Execution4 questions · ~32 min
Relational vs NoSQL for ProfilesMedium

Assesses database selection tradeoffs for Expedia Group user profile workloads.

Trade-offsdatabase designdata storageExpedia Group
Handling Downstream API LatencyMedium

Tests incident response and resilience patterns for dependent services in production systems.

TroubleshootingExpedia Group
Monitoring and Debugging BottlenecksMedium

Evaluates observability practices for diagnosing latency and throughput issues across services.

DebuggingExpedia Group
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3
Behavioral & Leadership3 questions · ~24 min
Leading Cross-Team Platform AlignmentMedium

Tests cross-team technical leadership, stakeholder alignment, influence without authority, and ownership on a complex project.

Stakeholder ManagementLeadershipcross-functional collaborationExpedia Group
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