Senior ISSO: RMF/NIST Security Lead (TS/SCI)

SAIC; Springfield (VA); On-site; USD 80,000 - 120,000; Full time

Job summary

SAIC is seeking a Senior Information Systems Security Officer (ISSO) to support cybersecurity and compliance activities for mission-critical IT systems on the Joint Program Office (JPO) Team in Springfield, VA. The role emphasizes implementing, managing, and assessing security controls in line with NIST 800-53, RMF, and related federal policies.

The ideal candidate will collaborate with system owners, admins, and security teams to assess risks, maintain security postures, and ensure

Qualifications

• Bachelor’s degree in a related field required.
• Active TS/SCI clearance with poly required.
• CISSP or equivalent certifications preferred.

Responsibilities

• Ensure RMF and NIST 800-53 compliance artifacts.
• Develop SSPs and POA&Ms.
• Coordinate ATO processes and documentation.
• Conduct risk assessments and vulnerability analysis.
• Maintain system hardening per DISA STIGs.
• Monitor systems with SIEM tools and respond to incidents.

Skills

RMF & NIST

SSP & POA&M

Vulnerability tools

SIEM monitoring

Windows security

RHEL security

Network security

Security documentation

Education

Bachelor’s Degree

Tools

Nessus

ACAS

Qualys

Splunk

SolarWinds

Job description

SAIC is seeking a Senior Information Systems Security Officer (ISSO) to support cybersecurity and compliance activities for mission-critical IT systems on the Joint Program Office (JPO) Team in Springfield, VA. The role emphasizes implementing, managing, and assessing security controls in line with NIST 800-53, RMF, and related federal policies.

The ideal candidate will collaborate with system owners, admins, and security teams to assess risks, maintain security postures, and ensure