Jonathan Lehr

Jonathan is an expert in Swift, Objective-C, and Java programming, with more than a decade's experience in Apple's Cocoa frameworks. He has led numerous software projects for Fortune 500 and Federal Government customers on a variety of platforms, including NEXTSTEP, OpenStep, OS X, and iOS, in addition to WebObjects and other Java EE web frameworks.

Jonathan has personally trained and mentored hundreds of Objective-C and Java developers, and has written more than a dozen courses on relevant topics. His classes have garnered rave reviews from such notable organizations as Apple, Wells Fargo, NASA, Verisign, eBay, Lockheed Martin, and IBM. He's also an author of books on software development, and a sought-after speaker at industry conferences and user group meetings.