John Shubin is Director of Business Development at ADRF, in charge of driving sales revenue from carriers, enterprises, and third-party operator customers in the west region of the United States. He has nearly 20 years of experience on the front lines of the wireless industry and expert knowledge on both commercial and public safety in-building wireless systems. Prior to joining ADRF, John was a business development manager at Kastle Systems, a global managed security and access control provider. He previously held leadership roles at Notora, PCTEL, and AT&T Mobility. John holds a Bachelor's degree from the University of Phoenix.