Overview Own Your Future. Modern Technology Solutions, Inc. (MTSI) is seeking a Cyber Security - Information Systems Security Engineer ( ISSE) in Dayton, OH or Hanscom Air Force Base, MA. As a Cybersecurity Engineer / Information Systems Security Engineer (ISSE) with MTSI you will support a customer operating out of Wright Patterson AFB) in Dayton, OH or Hanscom AFB, MA. Position requires travel up to 20%, as required by the Government. The ISSE serves as the Program Office's information securi