Senior Firewall Engineer (Contract) – Information Security Engineering

Locations: Irving, TX (Las Colinas) / Charlotte, NC / Chandler, AZ
Employment Type: Contingent (No conversion)

About the Role

We are seeking a skilled and motivated Senior Firewall Engineer to design, implement, and support secure, scalable network infrastructures. In this role, you will work on moderately complex security engineering initiatives, contribute to enterprise-scale planning, and collaborate with cross-functional teams to strengthen network security capabilities.

This position is ideal for candidates with strong expertise in enterprise firewall platforms (Palo Alto, Fortinet) and experience operating in large, multi-vendor environments, particularly within financial services.

What You’ll Do

• Design, implement, and maintain secure network infrastructure using Palo Alto, Fortinet, and Cisco technologies.
• Lead and support firewall migration initiatives, including:
  • Policy analysis
  • Configuration translation
  • Deployment using tools such as Expedition, FortiConverter, SmartMove
• Build and deploy new (greenfield) and existing network security environments.
• Optimize firewall policies and rulebases to align with best practices and compliance standards.
• Troubleshoot complex network security issues across multi-vendor environments.
• Collaborate with network, cloud, infrastructure, and application teams to integrate security controls.
• Monitor and respond to security events, alerts, and incidents, contributing to root cause analysis and remediation.
• Maintain documentation (network diagrams, standards, procedures).
• Participate in on-call rotation for critical incidents and maintenance support.
• Stay current on emerging threats, vulnerabilities, and security technologies.

Minimum Qualifications

• 4+ years of experience in Information Security Engineering (or equivalent experience through work, education, military, or training).
• 2+ years of hands-on experience in network security engineering, with a focus on enterprise firewall platforms.
• 2+ years of experience configuring and managing Palo Alto Networks firewalls.
• 2+ years of experience in:
  • Security policy design
  • Rulebase optimization
  • Firewall hardening in multi-vendor environments
• 2+ years of experience with Palo Alto Panorama, including:
  • Template stacks
  • Device groups
  • Policy management hierarchy
  • Logging and reporting
  • Role-based access control

Preferred Qualifications

• Experience with Fortinet firewall technologies.
• Familiarity with Cisco routing and switching.
• Experience in large financial services environments.
• Experience with firewall migration tools and automation utilities.
• Strong understanding of compliance and regulatory security requirements.

Work Environment

• Flexible working hours (no overtime expected)
• Collaborative, cross-functional team environment
• Exposure to enterprise-scale security infrastructure

Apply now