Information Systems Security Officer

The Information System Security Officer IV (ISSO) provides senior-level cybersecurity support for complex information systems and programs. Demonstrates advanced knowledge of cybersecurity risk management, control implementation, and compliance frameworks. Helps lead security compliance efforts, advises stakeholders on risk and control implementation, and supports authorization and continuous monitoring activities across multiple systems or high-impact environments. 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.

• The ability to obtain, maintain and access classified information at the Top Secret/SCI level, which requires U.S. Citizenship Required Certification at the DoD 8570 IAT
  - Level II Advanced knowledge of cybersecurity risk management, control implementation, and compliance frameworks.
• Significant experience supporting authorization, assessment, and continuous monitoring activities.
• Ability to evaluate complex technical environments and communicate risk clearly.

• RMF Execution:
  Lead all aspects of the RMF process, from system categorization and security control selection to implementation and assessment.
• Security Documentation:
  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).
• eMASS Management:
  Manage the system's security posture within the Enterprise Mission Assurance Support System (eMASS), ensuring all data is accurate and up to date.
• Continuous Monitoring:
  Implement and manage a robust continuous monitoring strategy to actively assess security control effectiveness, track vulnerabilities, and manage configuration changes.
• Stakeholder Coordination:
  Serve as the primary security advisor to the system owner and liaise with the Authorizing Official (AO) and other key stakeholders.

Bachelor’sdegree and a minimum ofseven or more (5+) years related experience, or equivalent combination of education/experience.

Work is primarily performed in an office environment. Regularly required to sit. Regularly required 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 and 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 by this job 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.

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