Demo

Information System Security Officer (ISSO) Level III (Senior)

OneZero Solutions
Elizabeth, NC Full Time
POSTED ON 1/4/2026
AVAILABLE BEFORE 2/3/2026
Position Title: Information System Security Officer (ISSO) - Level III (Senior)

Clearance: Secret

Location: Elizabeth City, NC (Hybrid - 2-3 days onsite per week)

Position Overview

The ISSO Level III serves as a senior cybersecurity SME supporting USCG avionics systems, mission electronics, test equipment, and aviation maintenance platforms. This role provides critical senior level cybersecurity expertise and knowledge to projects and tasks related to execution of USCG avionics engineering mission area. Some positions will also provide strategic cybersecurity leadership, and supervision of junior ISSOs and teams

Key Responsibilities

  • Lead and perform DOD RMF AandA lifecycle for multiple aviation systems
  • Serve as senior cybersecurity advisor to government and engineering leadership
  • Plan, execute, and manage cybersecurity Security Assessment and Authorization
  • Supervise and mentor Level I/II ISSOs; assign tasks and review deliverables
  • Participate in STIG implementation, vulnerability remediation, and compliance validation efforts
  • Oversee and perform ISCM activities, audit preparation, and continuous monitoring improvements
  • Support evaluations of avionics software, firmware, and maintenance systems

Required Qualifications

7 years of cybersecurity engineering and RMF AandA experience

Expert knowledge of DoD RMF, and related standards and policies

Proven experience leading and performing cybersecurity Assessment and Authorization projects through ATO achievement.

Strong background in in the use of cybersecurity tools including eMASS, NESSUS, ACAS, HBSS/ESS etc.

Experience With Aviation Systems, Avionics, Or OT Environments Preferred

Strong communication and leadership skills

Required Certifications (one or more)

  • CISSP
  • CISM
  • CISSP-ISSMP
  • GSLC

Education

Bachelor's degree or higher in Cybersecurity, Engineering, or related technical field preferred

OneZero Solutions, LLC is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, pregnancy, genetic information, disability, status as a protected veteran, or any other protected category under applicable federal, state, and local laws.

To request an accommodation, please contact us at recruiting@onezerollc.com or call (202) 987-2580.

Salary.com Estimation for Information System Security Officer (ISSO) Level III (Senior) in Elizabeth, NC
$97,682 to $116,318
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