RMF/Information System Security Officer

This position is contingent upon the award or funding. The essential duties, experience, education requirements, and salary are subject to change.

About the role

The RMF/Information System Security Officer (ISSO) is responsible for supporting the security, compliance, and integrity of information systems by implementing cybersecurity best practices and ensuring adherence to organizational, federal, and customer security requirements. This role collaborates with technical and program teams to identify and mitigate security risks, maintain system compliance, support security assessments, and promote the protection of sensitive information throughout the system lifecycle. This expert is responsible for guiding IT systems through the entire Risk Management Framework (RMF) lifecycle to achieve and maintain the Authority to Operate (ATO).

Chickasaw Nation Industries, Inc. serves as a holding company with multiple subsidiaries engaged in several lines of business (Business Services, Health, Infrastructure and Engineering, Mission Optimization, Technology and Transportation) for the federal government and commercial enterprises. A portion of our profits is used to support Chickasaw citizens.

Responsibilities

• Lead all aspects of the RMF process, from system categorization and security control selection to implementation and assessment.
• Develop, maintain, and update all required RMF documentation, including the System Security Plan (SSP), Security Assessment Report (SAR), and Plan of Action & Milestones (POA&M).
• Manage the system's security posture within the Enterprise Mission Assurance Support System (eMASS), ensuring all data is accurate and up to date.
• Implement and manage a robust continuous monitoring strategy to actively assess security control effectiveness, track vulnerabilities, and manage configuration changes.
• Serve as the primary security advisor to the system owner and liaise with the Authorizing Official (AO) and other key stakeholders to ensure a clear understanding of system risks and compliance status.

Requirements

• The ability to obtain, maintain and access classified information at the Top Secret level.
• CompTIA Security+ certification is required and must be maintained throughout the duration of employment.
• Minimum 5+ years of hands-on experience dedicated to applying RMF to complex DoD IT systems.
• A Bachelor’s degree from an accredited institution in Information Technology, Cybersecurity, Business Management, or a related field; or equivalent experience.

Skills

• Demonstrated mastery of eMASS, vulnerability scanning tools (e.g., ACAS/Nessus), COMSEC, and security compliance checkers (e.g., SCAP).

Benefits

• Medical, Dental, and Vision insurance (eligible on the first day of hire).
• Company Life Insurance.
• Short-Term and Long-Term Disability Insurance.
• 401(K) with immediate vesting.
• Professional Development Assistance.
• Legal Aid Assistance Program.
• Family Planning / Fertility Assistance.
• Personal Time Off.
• Observance of Federal Holidays.
• Employee Assistance Program (EAP).
• Training and Development Opportunities.

Pay

The estimated pay range for this role is $95,000 to $125,000, with the final offer contingent on location, skillset, and experience.

Physical Demands

• Work is primarily performed in an office environment.
• Regularly required to sit.
• Regularly required to use hands to finger, handle, or feel, reach with hands and arms to handle objects and operate tools, computer, and/or controls.
• Required to speak and hear.
• Occasionally required to stand, walk, stoop, kneel, crouch, or crawl.
• Must frequently lift and/or move up to 10 pounds and occasionally lift and/or move up to 25 pounds.
• Specific vision abilities required include close vision, distance vision, depth perception, and ability to adjust focus.
• Exposed to general office noise with computers, printers, and light traffic.

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of this job.