Requisition #: 1925 Job Title: Information System Security Engineer (ISSE) Senior Location: Huntsville, AL Clearance Level: TS with SCI eligibility required to start job Required Certification(s): One of the following: CCISO, CISA, CISM, CISSO, CISSP, CISSP-ISSEP, CPTE, CySA+, FITSP-A, GCSA, GSLC, or GSNA Job Description. This role supports the technical analysis needed to differentiate systems by risk, technology stack, overlays, and operational dependencies, and to ensure those categorizations effectively inform labor allocation, reporting, and cost recovery.