Network Security Administrator w​/Top Secret Clearance

Responsibilities & Qualifications

We are seeking a Network Security Administrator to join ITSS supporting the Department of Navy.

The Network Security Administrator is responsible for network boundary protection, cybersecurity posture, and accreditation oversight of IT systems across the Navy Medicine Operational Training Command (NMOTC) Enterprise. This role ensures compliance with DoD cybersecurity policies, oversees network security operations, and supports system accreditation processes under DISA, DoN, and DHA frameworks.

• 5+ years of DoD IT or 7+ years of general IT experience.

• Must be trained and certified on the specific Operating System or Computing Environment they maintain (e.g., Windows Server, Linux, Cisco)
• IAT LVL III (e.g., GIAC, CISSP, CASP, CISM)

• Must have Top Secret clearance

• Network Security & Architecture
• Cybersecurity & Compliance
• System Accreditation & ATO Support
• Incident Response
• Communications & Documentation
• Technical Toolsets (e.g., ACAS, HBSS, Splunk, etc.)

• Manage and maintain perimeter defense systems (e.g., firewalls, IDS/IPS, VPNs).
• Monitor network activity for signs of unauthorized access or anomalous behavior.
• Implement and manage network segmentation and access control policies.
• Oversee system security authorization efforts, including support for RMF (Risk Management Framework).
• Coordinate with Information System Security Officers (ISSOs) and Information System Security Managers (ISSMs) to maintain Authority to Operate (ATO) status.
• Ensure compliance with DISA STIGs, DoD 8500.01, DoDI 8510.01, and other applicable regulations.
• Conduct vulnerability scans and ensure remediation of findings using tools such as ACAS (Tenable/Nessus).
• Track, document, and report open security findings and POA&Ms (Plans of Action and Milestones).
• Maintain configuration baselines and patch management across systems and devices.
• Detect and respond to security incidents and breaches in accordance with NMOTC protocols.
• Conduct incident analysis, reporting, and mitigation.
• Work with cyber defense teams and respond to escalations.
• Maintain detailed security documentation for system configurations, incidents, and compliance audits.
• Support development of security plans, SOPs, and accreditation artifacts.
• Submit reports to the Contracting Officer Representative (COR) and Security Manager as required.
• Collaborate with network administrators, system engineers, and application developers to implement secure architectures.
• Provide cybersecurity input during system design, integration, and upgrades.
• Serve as SME (subject matter expert) on cybersecurity policies and procedures.
• Support PKI, CAC, and multi-factor authentication integration.
• Review and audit system access requests and ensure users meet appropriate clearance levels.
• Ensure implementation of least privilege and separation of duties.
• Ensure team members complete annual Cyber Awareness, CUI, and OPSEC training.
• Promote cybersecurity best practices across the contract team.

• Location:
  
  Onsite coverage at NMOTC HQs Pensacola, FL
• Type of environment:
  Office
• Noise level:
  Medium
• Work schedule:
  
  Schedule is day shift Monday – Friday during core business hours
• Amount of Travel: 20 % - The Contractor will be required to do site visits throughout the Continental United States (CONUS) during the performance of this contractor

• U.S. Citizen
• Top Secret clearance

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. While performing the duties of this job, the employee is regularly required to use hands to handle, feel, touch; reach with hands and arms;

talk and hear. The employee is regularly required to stand; walk; sit; climb or balance; and stoop, kneel, crouch, or crawl. The employee is regularly required to lift up to 10 pounds. The employee is frequently required to lift up to 25 pounds; and up to 50 pounds. The vision…