Lead Information System Security Manager (ISSM) - DoD RMF/CMMC

Liberty Alliance, LLC; Bay St. Louis (MS); On-site; USD 110,000 - 180,000; Full time

Job summary

Liberty Alliance, Inc. seeks an experienced Information System Security Manager (ISSM) to lead cybersecurity and RMF activities across DoW programs in Mississippi. The role includes security posture management, RMF documentation, and ATO readiness for classified systems.

Responsibilities cover vulnerability assessments, continuous monitoring, incident response coordination, and coordination with government security authorities. A TS/SCI eligibility background and DoD experience are preferred.

Qualifications

• Bachelor's degree in Cybersecurity, IT, CS, IS or equivalent experience.
• Minimum 5 years in information system security, cybersecurity compliance, RMF, or DoW ops.
• Active Top Secret clearance with SCI eligibility and ability to obtain program accesses.
• Experience with DoW DoD DoW/CIOC security requirements and RMF processes.
• Knowledge of NIST SP 800-53, RMF, STIGs, and security authorization processes.

Responsibilities

• Oversee cybersecurity, security administration, and compliance of classified information systems.
• Develop and maintain SSPs, POA&Ms, and RMF documentation.
• Support system authorization, continuous monitoring, and compliance activities.
• Conduct vulnerability assessments, audits, log reviews, and remediation.
• Coordinate with Government representatives and security authorities.

Skills

Cybersecurity

RMF knowledge

Security compliance

Communication skills

Education

Bachelor's degree in Cybersecurity

Tools

eMASS

DISA STIGs

ACAS

Splunk

Job description

Liberty Alliance, Inc. seeks an experienced Information System Security Manager (ISSM) to lead cybersecurity and RMF activities across DoW programs in Mississippi. The role includes security posture management, RMF documentation, and ATO readiness for classified systems.

Responsibilities cover vulnerability assessments, continuous monitoring, incident response coordination, and coordination with government security authorities. A TS/SCI eligibility background and DoD experience are preferred.