As an iOS developer, one should possess the below skills:
Programming Languages such as Swift and Objective-C, the primary programming languages for iOS development.
iOS SDK to build, test, and debug applications with familiarity in UIKit, Foundation, Core Data, Core Animation, and other frameworks that facilitate app development.
Xcode is Apple’s integrated development environment (IDE). This tool is used for coding, debugging, and deploying iOS applications.
Interface Design, ability to design user interfaces using Interface Builder and SwiftUI. Knowledge of designing layouts, views, and interactions that provide a smooth and intuitive user experience.
Skill in using Auto Layout and constraints to create adaptive and responsive interfaces that work across various device sizes and orientations.
Knowledge of Core Data framework for implementing data persistence and storage in iOS applications.
Additionally, knowledge of cloud, security, and performance optimisation would help.