About John McMahon
John is a serial entrepreneur and full-stack developer. John is currently CEO of Starter Inc. a mobile and web development company, and is the founder of Humor Me Inc. maker of the Chukles consumer mobile humor app. John also currently serves as the CTO for MatanzasGroup, a Global Pharma Consulting Firm. John founded Extentech in 1998, growing it into a leading Web 2.0 spreadsheet tools vendor. In 2012, John sold his 100% stake of Extentech to Infoteria Corporation -- a publicly listed Japanese company. John has recognized expertise in startups, mobile and web development, open source, and cloud computing. John has been a contributor to Accounting World and has been interviewed and featured in stories on PandoDaily and Forbes.com.