What are the responsibilities and job description for the Information System Security Officer (ISSO) – Level III (Senior) position at OneZero Solutions?
OneZero Solutions is an employee‑centric cybersecurity and engineering firm supporting federal and defense missions. We value our people and provide competitive benefits, including health coverage, 401(k) match, PTO, paid holidays, referral bonuses, and educational assistance.
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 A&A 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 A&A 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.