Mr. Sobieski is responsible for integrating the core components of TerreStar's emerging communications network - satellite, wireless, and terrestrial - for service. Additionally, he leads business development and attracting strategic partnerships with manufacturers and consultants in alternate sales channels. Mr. Sobieski was formerly with XO Communications, serving in various senior positions most recently as National Senior Vice President Broadband Wireless. Other positions at XO included Senior Vice President Commercial Sales, Pacific Region; Vice President Carrier and Enterprise Sales; National Vice President Operations and Engineering; Regional Vice President Operations and Engineering; Regional Vice President New Market Development and Engineering; and Vice President / General Manager Market Sales. Prior to his XO tenure, he was Director of Telecommunications at Questar Corporation in Salt Lake City, Utah. Mr. Sobieski completed graduate studies in Business and Engineering at the University of Utah, from which he also received a B.S. in Electrical Engineering.