Matthew Stewart is a Senior Director at DSI since July 2022, previously holding various leadership roles at AT&T from February 2000 to July 2022. At AT&T, Matthew served as a Senior Account Manager for Authorized Retail, overseeing vendor call center relationships and driving sales and service operations across multiple states. Their extensive career encompasses positions such as Strategic Partner Manager, Area Sales Vendor Manager, Center Sales Manager, Sales Manager, Sales Coach Manager, and Sales Agent. Matthew holds a Bachelor's degree in Marketing from Southeast Missouri State University, and earlier attended Saint Louis University.