Proficient with Objective-C or Swift {{depending on project requirements}}, and Cocoa TouchExperience with iOS frameworks such as Core Data, Core Animation, etc.Experience with offline storage, threading, and performance tuningFamiliarity with RESTful APIs to connect iOS applications to back-end servicesKnowledge of other web technologies and UI/UX standardsUnderstanding of Apple’s design principles and interface guidelinesFamiliarity with cloud message APIs and push notificationsKnack for benchmarking and optimizationProficient understanding of code versioning tools {{such as Git, Mercurial or SVN}}Familiarity with continuous integration