Senior Firewall & NGFW Engineer — Global Ops

CACI International Inc; Ashburn (VA); On-site; USD 104,000 - 218,000; Full time

Job summary

CACl International Inc. is seeking a Senior Network Engineer (Firewall) to lead NGFW/WAF initiatives across 350+ global facilities and ensure secure connectivity for diplomatic operations.

The role emphasizes creating robust firewall rules, high-availability designs, and DoS mitigation, while mentoring the network security team. Ideal candidates hold an active Secret clearance with 8+ years in related fields and hands-on experience with NGFWs, web application firewalls, and enterprise firewall

Qualifications

• Bachelor's degree plus 8+ years in network engineering or security.
• Active Secret clearance.
• Experience with NGFWs and firewall architecture at scale.

Responsibilities

• Lead implementation and management of NGFWs and WAFs across global facilities.
• Troubleshoot firewall issues and coordinate with DT teams.
• Design and implement firewall rules and high-availability solutions.
• Ensure DoS mitigation and change-management compliance.
• Mentor team members and supervise network security operations.

Skills

NGFW expertise

Firewall rule design

High availability configurations

Load balancing

DoS mitigation

Leadership

Project leadership

Education

Bachelor's degree or equivalent in networking

Tools

Illumio

VMware NSX-T

Job description

CACl International Inc. is seeking a Senior Network Engineer (Firewall) to lead NGFW/WAF initiatives across 350+ global facilities and ensure secure connectivity for diplomatic operations.

The role emphasizes creating robust firewall rules, high-availability designs, and DoS mitigation, while mentoring the network security team. Ideal candidates hold an active Secret clearance with 8+ years in related fields and hands-on experience with NGFWs, web application firewalls, and enterprise firewall