• Proficient with Objective-C, Swift, and Node JS. • Experience in SQLite, CoreData as database solutions • Experience with Cocoa Touch framework. • Experience in web service integration (SOAP, REST, JSON, XML). • Good understanding of OO programming and design patterns like MVC and MVVM. • Experience with GCD, Multithreading, and Operation Queue. • Experience with offline storage, threading, and performance tuning. • Understanding of Apple’s design principles and interface guidelines. • Knowledge of low-level C-based libraries. • Excellent debugging and optimization skills. • Proficient understanding of code versioning tools.