New manager at U.S. Cellular March 19, 2017 on Business, News U.S. Cellular has named Andrew Sullivan retail sales manager for its Ellsworth store located at 225 High St. Sullivan leads store associates to help customers get the exact plan and device to meet their needs and show them how wireless technology can simplify and enhance their life or business. Sullivan has more than three years of wireless/sales experience. Sullivan has been with U.S. Cellular for more than three years, starting out as a retail wireless consultant at the company’s Brewer location. Prior to U.S. Cellular, Sullivan worked at Best Buy, Bank of America and Unicel. He resides in Brewer with his wife, Angela, and children, Brooklyn and John.