Proficient with Objective-C or Swift (Preferably) and Cocoa Touch.
Experience with iOS frameworks such as Core Data, Core Animation, etc.
Experience with offline storage, threading, and performance tuning.
Familiarity with RESTful APIs to connect iOS applications to back-end services.
Knowledge of other web technologies and UI/UX standards, and deep understanding of Apple’s design principles and interface guidelines.
Knowledge of low-level C-based libraries is preferred & experience with performance and memory tuning with tools.
Familiarity with cloud message APIs and push notifications & Proficient understanding of code versioning tools