Overview Own Your Future. Modern Technology Solutions, Inc. (MTSI) is seeking a Mid-Career Model Based Systems Engineer (MBSE) / Digital Engineer with Cameo modeling experience to join our team in the Dayton, OH area in support of the National Space Intelligence Center. Why is MTSI known as a Great Place to Work? Interesting Work: Our co-workers support some of the most important and critical programs to our national defense and security. Values: Our first core value is that employees come fir