ISSO - TS/SCI Cleared RMF Security Lead

General Dynamics - IT; Corridor North (MD); On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

401K with company match

Competitive pay

Paid time off

Comprehensive benefits

Wellness program

Job summary

General Dynamics - IT is seeking an Information Systems Security Officer (ISSO) to safeguard enterprise infrastructure across classified domains. You will manage the security lifecycle for assigned systems, ensure RMF compliance, and maintain ongoing ATO readiness.

The role requires TS/SCI with CI Poly, a DoD 8140 certification, experience with RMF, NIST standards, and familiarity with Splunk. You’ll collaborate with engineers and operators to validate controls and support accreditation updates.

Qualifications

• Active RMF experience and ability to manage security lifecycle for systems.
• Familiarity with DoD 8140 Information Assurance Workforce certification requirements (e.g. Security+ CE).
• Strong understanding of NIST SP 800-37, 800-53, CNSSI 1253, and FISMA-aligned security practices.

Responsibilities

• Serve as the primary cybersecurity advisor on system security posture, threats, vulnerabilities, and compliance requirements.
• Maintain and update security authorization packages, documentation, and baseline artifacts throughout the system lifecycle.
• Ensure systems retain active Authority to Operate (ATO) through continuous monitoring, updates, and alignment with security policies.
• Develop and manage POA&Ms, risk acceptance requests, waivers, and exceptions for identified vulnerabilities.
• Perform periodic system reviews, update security controls, and coordinate required security-driven configuration changes.
• Audit system logs and monitors outputs to identify compliance issues or abnormal activity and coordinate remediation.
• Oversee secure system recovery, validating restoration of approved security configurations.
• Manage system decommissioning activities, ensuring secure sanitization and proper documentation.
• Collaborate with engineers, system owners, and technical teams to validate controls and support accreditation updates.

Skills

RMF experience

NIST knowledge

Security+ CE

Vulnerability management

Threat analysis

Communication

Education

Bachelor’s degree in IT-related field

Tools

Splunk

STIG tooling

Job description

General Dynamics - IT is seeking an Information Systems Security Officer (ISSO) to safeguard enterprise infrastructure across classified domains. You will manage the security lifecycle for assigned systems, ensure RMF compliance, and maintain ongoing ATO readiness.

The role requires TS/SCI with CI Poly, a DoD 8140 certification, experience with RMF, NIST standards, and familiarity with Splunk. You’ll collaborate with engineers and operators to validate controls and support accreditation updates.