25 Mobile Engineer Domande di colloquio

How do you decide between native iOS/Android and cross-platform development?

Walk me through how you'd optimize a mobile app that's consuming too much battery.

How do you handle offline support and data synchronization in a mobile app?

Describe your approach to managing app state in a large React Native codebase.

How do you handle deep linking and universal links in your mobile apps?

What's your strategy for handling different screen sizes and resolutions?

Describe a performance issue you solved on mobile that was different from the web.

How do you approach push notifications — delivery guarantees, opt-in rates, personalization?

What's your experience with mobile app security — certificate pinning, secure storage?

How do you structure your mobile CI/CD pipeline — from commit to App Store?

Describe how you test mobile apps — unit tests, UI tests, and manual testing.

How do you handle breaking changes in a mobile API when users delay updating?

What's your approach to analytics and crash reporting on mobile?

Describe your experience with animations on mobile — what tools do you use?

How do you manage build flavors or schemes for dev, staging, and production?

What's your strategy for reducing app startup time?

How would you implement biometric authentication in a mobile app?

Describe a time you had to balance mobile UX with backend constraints.

How do you keep up with platform changes from Apple and Google?

What's your approach to accessibility on mobile — VoiceOver, TalkBack?

How do you handle in-app purchases and subscription management?

Describe your experience with native modules or platform channels in cross-platform frameworks.

How do you approach memory management on mobile?

What's your strategy for A/B testing features on mobile?

How do you manage third-party SDK integrations without hurting app performance?