Learned HTML in late 90ies, added PHP, MySQL, JavaScript and CSS, became a web-development-freelancer, like soooooo many others during that time.
Tried iOS tentatively in 2009, switched completely to iOS in 2011. Since 2012 iOS-developer for NEXT Munich GmbH - The App Agency (www.next-munich.com).
Mid 2013 3 months of development with Unity 3d. Late 2013 until late 2014 I developed a Mac OS X-based export-framework for a proprietary, epub-based format for interactive childrens-books, as well as a JavaScript-based engine to display those exported books in iBooks v2, later v3.
Planning to develop cross-platform applications with Xamarin for iOS, Android and Windows Phone.