Founder and Senior Vice President Product Management Charles serves as Founder and Senior Vice President Product Management, leading the product management organization. Prior to developing the initial vision for Tangoe, Charlie gained twenty years of experience serving as president and COO for a large consumer electronics Internet retailer distributing telecom equipment and satellite TV systems online. Earlier, Charlie launched the ISP division for Progressive Concepts, Inc., the largest independent cellular reseller in the United States. He also created and launched prepaid cellular and prepaid long distance product lines and engineered a B2B ecommerce strategy for the company's wholesale division. Charlie's telecommunication background goes back to 1984 when, following the AT&T divestiture, he created, built, and eventually sold a data communications company. Charlie earned his MBA from the Wharton Business School.