Uber Mobile Engineer Interview Questions

1300+ verified questions, indexed by team and level. Real questions submitted by candidates who completed Uber loops in the last 24 months.

About the Uber Mobile Engineer hiring loop

Uber's system design is the headline round — real-time location services, surge pricing, dispatch algorithms. Coding rounds are LeetCode-medium. Behavioural rounds anchor on the "Uber values" (refreshed in 2022) — Customer Obsession, Build with Heart, Stand for Safety.

Mobile rounds score on platform-native fluency, offline-first architecture, performance awareness, and security posture. iOS vs Android role-specific depth is expected; cross-platform breadth is a plus.

Topics covered in Uber Mobile Engineer interviews

  • 01iOS internals (Swift / Objective-C, ARC, GCD, SwiftUI vs UIKit, Core Data)
  • 02Android internals (Kotlin / Java, Coroutines, Jetpack Compose, Room, WorkManager)
  • 03Cross-platform (React Native, Flutter — when to pick vs native)
  • 04Mobile system design (offline-first, sync conflict resolution, push, background tasks)
  • 05App performance (cold-start time, frame rendering, battery, memory)
  • 06Mobile security (keychain / keystore, certificate pinning, jailbreak detection)

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