Have been working extensively on the following technologies: - Mac OS X Development - Cocoa/Carbon Application Development - Cocoa Framework development (Frameworks for 3rd party apps) - Swift - Objective C/ Objective C 2.0/ C++ - iPhone/iPad Application Development - Delivered Cocoa/Objective C Training and discussions with different audiences. I also have experience in on-device sqllite library, high end encryption, xml parsing etc.