Senior ISSO - RMF & A&A Expert (Remote)

GovCIO; Atlanta (GA); Remote; USD 143,000 - 175,000; Full time

Benefits offered by this job

Employee Assistance Program (EAP)

Corporate Discounts

Learning & Development

Training, Certification Assistance

Referral Bonus Program

Internal Mobility Program

Pet Insurance

Flexible Work Environment

Job summary

GovCIO is seeking a Senior Information Systems Security Officer (ISSO) to lead RMF activities for a client, overseeing A&A across multiple systems and emerging AI/ML platforms in a fully remote role. This position is based in Washington, DC and requires oversight of NIST SP 800-53 Rev 5 and CNSSI 1253, with mentoring responsibilities for junior ISSO staff.

The ISSO will conduct assessments, maintain documentation, and drive continuous monitoring while ensuring compliance with FISMA and related

Qualifications

• Bachelor's degree and 12+ years information security experience.
• 8–10+ years in ISSO or cybersecurity compliance roles.
• Experience with RMF assessments across multiple networks.
• Proficient with GRC platforms for A&A documentation.
• Active security certifications and DoD compliance required.

Responsibilities

• Lead RMF lifecycle activities across concurrent systems and environments.
• Develop and maintain SSPs, SARs, SAPs, POA&Ms, and related docs.
• Perform continuous monitoring and remediate POA&Ms to closure.
• Assess emerging technologies and adapt control baselines.
• Provide security reporting and dashboards to stakeholders.
• Mentor junior ISSO staff and develop SOPs and process docs.

Skills

RMF lifecycle

A&A management

NIST SP 800-53 Rev 5

Mentoring juniors

Security governance

Security metrics

Cross-functional collaboration

Education

Bachelor's degree in information security

DoD 8570.01-M / DoD 8140 IAM Level II/III

Tools

JIRA

Tenable Security Center

JCAM/CSAM

Xacta

Job description

GovCIO is seeking a Senior Information Systems Security Officer (ISSO) to lead RMF activities for a client, overseeing A&A across multiple systems and emerging AI/ML platforms in a fully remote role. This position is based in Washington, DC and requires oversight of NIST SP 800-53 Rev 5 and CNSSI 1253, with mentoring responsibilities for junior ISSO staff.

The ISSO will conduct assessments, maintain documentation, and drive continuous monitoring while ensuring compliance with FISMA and related