Mark joins Goodman Networks with years of telecom and home solutions experience. Mark spent 30 years in a variety of operational and support positions at AT&T. He began his AT&T career in Oklahoma City as an Engineer with Southwestern Bell Telephone Company in 1982. As Mark moved through the ranks at AT&T, he held several key Executive positions across the AT&T portfolio. He has served as President and CEO of AT&T Southwest, where he was responsible for operations in the Southwest region, including network, consumer, and business sales. He also held senior positions as Executive Vice President-Enterprise Business Sales, Chief Marketing Officer-Business and President-Home Solutions. Most recently, Mark served as Chairman of Keiffer Holdings. Mark holds a Bachelor of Science in Mathematics from East Central University in Ada, OK and a Master’s Degree in Business Management from Webster University in St. Louis, Missouri.