Firewall/Network Security Administrator

Sumaria Systems LLC; San Antonio (TX); On-site; USD 110,000 - 140,000; Full time

Job summary

Sumaria Systems LLC in San Antonio, TX, seeks a Network Security Engineer II (Boundary Protection) to support JBSA and the AFINC III program, focusing on firewall/IDS/IPS, proxies, and enterprise boundary protection of DoD resources.

With 5+ years in enterprise network security and DoD experience, the candidate will operate in a 24x7 environment, maintain DoD cybersecurity standards, and collaborate with Government teams. A TS clearance and CCNA are required, PCNSA/PCNSE preferred.

Qualifications

• Minimum 5+ years of experience in enterprise network security or cybersecurity operations
• Experience supporting DoD boundary protection and/or CSSP operations
• Strong knowledge of firewalls, IDS/IPS, proxies, and load balancers
• Experience with network security monitoring and threat detection
• Experience performing complex analytics to identify and mitigate threats
• Understanding of DoD cybersecurity standards and DoDIN operations

Responsibilities

• Install, configure, monitor, troubleshoot, upgrade, patch, and harden firewalls, IDS/IPS, load balancers, and 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

Skills

Firewall basics

Networking fundamentals

DoD cybersecurity

Troubleshooting

Analytical thinking

Team collaboration

Education

High School Diploma or GED

Tools

Firewalls

IDS/IPS

Proxies

Load balancers

Web proxies

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Firewall/Network Security Administrator

Reg Full Time Salary Exempt Professional San Antonio, TX, US

30+ days ago Requisition ID: 1033

Job Title

Network Security Engineer II (Boundary Protection) – JBSA

Position Description

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.

Key Responsibilities

• 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

Required Certifications

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

Preferred Certifications:

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

Education Requirements

• High School Diploma or GED required

Experience Requirements

• 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

Clearance Requirements

• Active Top Secret clearance required
• SCI eligibility required

Why Join Sumaria Systems

• Supporting critical Air Force missions
• Over 40 years supporting the Department of Defense

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.