Senior ISSM: DoD RMF/Cyber Lead (On-Site)

Via Logic LLC; Oklahoma City (OK); On-site; USD 108,000 - 195,000; Full time

Job summary

Leidos is seeking an Information System Security Manager (ISSM) to oversee the cybersecurity posture of DoD information systems for a fast-paced Air Force Life Cycle Management Center program. This on-site role requires strong RMF, NIST, and DoD policy expertise.

You will develop security controls, conduct risk and vulnerability assessments, manage ATO processes, and coordinate with cross-functional teams to ensure compliance and continuous monitoring.

Qualifications

• Active TS clearance with SCI eligibility prior to start date.
• Bachelor’s degree with 8+ years or Master’s with 6+ years experience.
• CISSP or CISM or equivalent certification.
• In-depth knowledge of DoD cybersecurity policies and RMF/NIST/FISMA/ICD 503/JSIG.
• Experience building and maintaining an ATO for cloud-based systems.
• Experience with risk management and vulnerability assessments.

Responsibilities

• Act as SME on cybersecurity compliance / information assurance.
• Collaborate with ISSOs and Cyber Security Engineers to execute continuous monitoring.
• Manage operational cybersecurity posture of networks with NOC/SOC and Cloud Teams.
• Facilitate ATO/ATE/ATC/ISA processes with customer to secure endorsements.
• Develop, implement, and maintain security policies and documentation per DoD standards.
• Oversee security posture to meet confidentiality, integrity, and availability requirements.
• Perform risk and vulnerability assessments and remediation planning.
• Manage continuous monitoring of security controls for data protection.

Skills

Cybersecurity expertise

RMF/NIST compliance

Security policy development

Risk assessment

Vulnerability assessment

Cross-functional collaboration

Security reporting

Strong communication

Education

Bachelor’s degree

Master’s degree

Tools

SIEM

Firewalls

IDS/IPS

Vulnerability scanners

Job description

Leidos is seeking an Information System Security Manager (ISSM) to oversee the cybersecurity posture of DoD information systems for a fast-paced Air Force Life Cycle Management Center program. This on-site role requires strong RMF, NIST, and DoD policy expertise.

You will develop security controls, conduct risk and vulnerability assessments, manage ATO processes, and coordinate with cross-functional teams to ensure compliance and continuous monitoring.