RMF/Information System Security Officer

Chickasaw Nation Industries, Inc.•IL Home Office, IL

6d•$95,000 - $125,000•Onsite

About The Position

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. We are proud to support the economic development and long-term viability of the Chickasaw Nation and its people. CNI offers premium benefits eligible on the first day of hire to full time employees; (Medical - Dental – Vision), Company Life Insurance, Short-Term and Long-Term Disability Insurance, 401(K) Immediate Vesting, Professional Development Assistance, Legal Aid Assistance Program, Family Planning / Fertility Assistance, Personal Time Off, and Observance of Federal Holidays. As a federal contractor, CNI is a drug-free workplace and adheres to the Federal Controlled Substance Act.

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

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.