WASHINGTON–(BUSINESS WIRE)–Epirus, Inc., a Silicon Valley-backed, high growth technology company, today announced that Mark T. Esper, Ph.D. has joined the company’s Board of Directors. Dr. Esper served as the 27th United States Secretary of Defense from 2019 to 2020 and the 23rd Secretary of the Army from 2017 to 2019. “History informs us that those who are first to harness once-in-a-generation technologies have a decisive advantage well into the future. At a time when new, low-cost technolog