Senior Information Security Officer — RMF/ATO Lead

Base-2 Solutions seeks an Information System Security Officer to ensure security compliance across applications, systems, and databases. You will manage RMF processes, maintain ATO, and update Xacta documentation including SSPs, SCTMs, STPs, and POAMs while coordinating with PAT, ISSMs, and SCAs. The ideal candidate has a strong background in risk assessments, vulnerability management, and incident response, with experience in mitigating findings and enforcing security policies.