eBay Mobile Engineer Interview Questions

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

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CodingStart here. 12 questions · ~127 min

Use a hash set to mark product items whose IDs appear in the favorites table.

State Persistence After RotationMedium

Practice

Simulate Android activity lifecycle events and restore the eBay banner visibility after orientation changes.

androidactivity lifecycledata persistence

eBay

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Software Architecture7 questions · ~74 min

Tests performance engineering skills for scrolling lists, caching strategy, and rendering efficiency.

Client Architecture for eBay LiveHard

Tests system design for real-time media and commerce UX on the client, including scalability and reliability.

system designarchitecture

eBay

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Technical Fundamentals12 questions · ~127 min

SwiftUI State Across NestingMedium

Tests SwiftUI data flow knowledge and correct state ownership in complex view trees.

backgroundCommunicationtechnical experience

eBay

GCD vs Swift ConcurrencyMedium

Tests concurrency model selection, correctness, and understanding of isolation with Swift concurrency.

backgroundCommunicationtechnical experience

eBay

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System Design3 questions · ~32 min

Design Real-Time Live FeatureHard

Evaluates system thinking for real-time features and architecture choices.

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Behavioral & Leadership12 questions · ~127 min

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