RMF Information System Security Officer (ISSO) with Security Clearance

COLSA is seeking an experienced RMF Information System Security Officer (ISSO) to join our team and play a critical role in supporting cybersecurity and Risk Management Framework (RMF) activities. This position will provide expertise throughout the RMF authorization process, including developing and maintaining RMF Assessment and Authorization (A&A) packages, guiding information owners through RMF requirements, supporting security control assessments, and managing vulnerability and remediation activities.

The RMF ISSO will work closely with ISSMs, Government RMF ISSOs, information owners, validators, and other stakeholders to support system authorization and maintain the security posture of assigned information systems. This position is contingent upon contract award, with work anticipated to begin in March 2027. The selected candidate will be proposed as Key Personnel in accordance with proposal requirements.

• Completes authorization and assessment packages within 120 days of system ATO expiration.
• Ensures stakeholders are kept informed of risk, status, and roles and responsibilities throughout the RMF process
• Guides information owners through completion of Step 0 System Registration in Compliance and Authorization Support Tool
• Guides information owners through Step 1, System Categorization, based on information provided by the information owner
• Guides information owners through Step 2, select security controls, and determining appropriate defense level and appropriate overlays
• Provides information owner with an export of selected security controls and applied overlays to populate the Implementation Details
• Reviews completed security control implementation details and gain validator approval
• Guides information owners in the development of a System Security Plan (SSP) that addresses objectives for the assessment, methods for verifying security control compliance, the schedule for the initial control assessment, and actual assessment procedures
• Works with ISSM and lead Government RMF ISSO to conduct the initial assessment of the effectiveness of the security controls and document the issues, findings, and recommendations in a Security Assessment Report (SAR)
• Develops a project plan and Plan of Action and Milestones (POA&M) for the RMF package that addresses all un-remediated vulnerabilities, failed Security Technical Implementation Guideline (STIG) failures and failed security controls
• Works the POA&M, to include updating the POA&M at least monthly for the life cycle of the IS using the latest vulnerability scans and STIG checklists
• Monitors the network and supporting systems to detect security compromise events (including intrusions and virus incidents).
• Identifies where systems/networks deviate from acceptable configurations, enclave policy, or local policy.
• Conducts audits to ensure information systems security policies and procedures are implemented as defined in security plans and best practices.
• Performs evaluations (compliance audits) and/or active evaluations (vulnerability assessments).
• Leads response teams to ensure any anomalies are corrected in accordance with government or industry standards. At COLSA, people are our most valuable resource and centered at our core value. We invite you to unite your talents with opportunity and be a part of our "Family of Professionals!" Learn about our employee-centric culture and benefits here: https://www.colsa.com/culture_benefits Required Experience
• Bachelor's Degree (or higher) in Cybersecurity, Information Technology, or a related field or equivalent experience
• Minimum of eight (8) years of related work experience, including experience supporting DoD Risk Management Framework (RMF) and Assessment and Authorization (A&A) activities
• Experience developing and maintaining RMF authorization packages, including System Security Plans (SSPs), Security Assessment Reports (SARs), and Plans of Action and Milestones (POA&Ms)
• Experience with security control implementation and assessment, vulnerability management, and Security Technical Implementation Guides (STIGs)
• Ability to clearly present and communicate technical approaches and findings
• Active Secret security clearance; US Citizenship required;

Preferred Qualifications

• DoD 8570/8140-compliant certification such as Security+, CGRC (formerly CAP), or equivalent Applicant selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information. COLSA Corporation is an

Equal Opportunity Employer, Minorities/Females/Veterans/Disabled. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.