Network Security Engineer II — Firewall, VPN & WAF (On-Site)

The Intersect Group; Irving (TX); On-site; USD 90,000 - 130,000; Full time

Job summary

The Intersect Group in Irving, TX is seeking a Network Security Engineer II to maintain and secure enterprise network security solutions, including firewalls, VPNs, and web application security controls. This on-site contract role focuses on optimizing security operations and supporting complex environments.

You will implement security standards, assist with audits, and drive improvements in automation and incident response.

Qualifications

• Bachelor’s degree or equivalent in IT/cybersecurity.
• 3–5 years in network security engineering or cybersecurity operations.
• Hands-on with enterprise firewall, VPNs, and WAF.
• Strong documentation and troubleshooting skills.

Responsibilities

• Manage enterprise firewall environments and enforce network security policies.
• Configure and maintain site-to-site and remote VPNs.
• Administer Web Application Firewall and tune policies.
• Provide remote access support and incident response participation.
• Develop security standards and runbooks; support audits.

Skills

Firewall management

VPN technologies

Web application security

Networking concepts

Troubleshooting

Technical documentation

Security governance

Incident response

Vulnerability management

Cross-functional collaboration

Education

Bachelor's degree in IT/CS/C cybersecurity

Security+ or CISSP (preferred)

Tools

WAF

VPN technologies

Threat monitoring tools

Job description

The Intersect Group in Irving, TX is seeking a Network Security Engineer II to maintain and secure enterprise network security solutions, including firewalls, VPNs, and web application security controls. This on-site contract role focuses on optimizing security operations and supporting complex environments.

You will implement security standards, assist with audits, and drive improvements in automation and incident response.