Hiring iOS Developers: The SwiftUI Skills That Matter
Great iOS apps feel effortless. Here are the Swift and SwiftUI skills that separate polished iOS developers from the rest.
When you hire an iOS developer, test modern Swift and SwiftUI skills — state management, Swift concurrency, architecture and accessibility — along with UIKit knowledge for existing code and real experience shipping through App Store review. Polished iOS apps come from developers who care about Apple's Human Interface Guidelines as much as the code.
Essential skills
- Swift language — optionals, protocols, generics, value types.
- SwiftUI — state, bindings, observable models, navigation stacks.
- Swift concurrency — async/await, actors and task cancellation.
- UIKit — still needed for many existing apps and some advanced UI.
- Persistence — SwiftData or Core Data.
- Apple frameworks — StoreKit 2, push notifications, widgets, HealthKit where relevant.
- Accessibility — Dynamic Type, VoiceOver labels and contrast.
Release experience
Ask candidates to describe their release process: TestFlight testing, phased releases, crash monitoring and how they handled App Store rejections. Developers who have done this repeatedly save you weeks.
Interview questions
- How do you structure state in a SwiftUI screen with network data?
- When would you still use UIKit today?
- How do you avoid retain cycles with closures?
- How would you add a home screen widget to an existing app?
Practical test
A small SwiftUI app that fetches a list from an API, shows loading and error states, supports pull-to-refresh and includes a unit test. Review the architecture, naming and accessibility.
Pair for success
iOS developers work best with a UI/UX designer who designs for Apple conventions. If you also need Android, add an Android developer or consider cross-platform. Explore our iOS developers.
