Firewall​/Network Security Administrator

Job Title

Network Security Engineer II (Boundary Protection) JBSA

The qualified candidate will support the Air Force Intranet Control (AFINC) III program supporting the 26th Network Operations Squadron (26 NOS) and enterprise Air Force network boundary operations at Joint Base San Antonio (JBSA), TX. This position supports the defense, monitoring, maintenance, and operational sustainment of Air Force enterprise boundary protection systems in support of mission‑critical Department of Defense (DoD) network operations.

The candidate will provide operational support for enterprise boundary security infrastructure, including firewalls, intrusion detection/prevention systems, proxy services, and related network security technologies protecting Air Force network resources from internal and external threats. The position operates within a highly dynamic enterprise environment supporting Department of Defense Information Network (DODIN) operations and Defensive Cyber Operations (DCO).

This role is ideal for candidates with a strong networking foundation and an interest in advancing into enterprise network security and boundary protection operations. The environment is operationally focused and requires strong troubleshooting ability, accountability, critical thinking, and collaboration within a highly integrated technical team.

This position operates within a 24x7x365 mission environment and requires adherence to established cybersecurity policies, procedures, and operational standards.

• Install, configure, monitor, troubleshoot, upgrade, patch, and harden:
  • Firewalls
  • IDS/IPS systems
  • Load balancers
  • Web proxies
• Protect AFNet resources from internal and external threats in accordance with DoD standards
• Perform advanced analytics on boundary protection systems to detect and mitigate threats
• Conduct Defensive Cyberspace Operations (DCO) and support DoDIN operations
• Monitor system health and respond to anomalous activity and cyber incidents
• Ensure systems comply with DoD cybersecurity requirements and security configurations
• Document system changes, troubleshooting actions, and incident response activities
• Coordinate with Government stakeholders and other technical teams to maintain mission readiness

• IAT Level II compliant certification (e.g., CompTIA Security+)

• Palo Alto Networks Certified Network Security Administrator (PCNSA)
• Palo Alto Networks Certified Network Security Engineer (PCNSE)

• High School Diploma or GED required

• Minimum 5+ years of experience in enterprise network security or cybersecurity operations
• At least 5+ years of experience supporting DoD boundary protection and/or Cybersecurity Service Provider (CSSP) operations
• Demonstrated experience with:
  • Firewalls, IDS/IPS, proxies, and load balancers
  • Network security monitoring and threat detection
  • Performing complex analytics to identify and mitigate threats
• Experience supporting Defensive Cyberspace Operations (DCO) and DoDIN operations
• Strong understanding of DoD cybersecurity standards and enterprise network security architecture

• Active Top Secret clearance required
• SCI eligibility required

Sumaria Systems is an Equal Opportunity Employer and considers all qualified applicants without regard to race, color, religion, sex, national origin, age, disability, or veteran status.