Mainframe Top Secret Security Administrator (Software Engineer ) Remote / Telework (Work From Home) Duration February 2, 2026 - August 31, 2026 Up to 600 total hours Potential for renewal (up to three one-year extensions) May require occasional after-hours or weekend support with prior approval Role Overview We are seeking a senior-level Mainframe Top Secret Security Administrator to support legacy systems and mainframe modernization initiatives. This role serves as a subject matter exper