Senior Network Engineer (Firewall)

CACI International • Ashburn, VA

1d • $103,800 - $218,100

About The Position

CACI is seeking a Senior Network Engineer (Firewall) for the Global Mission Operations Support (GMOS) contract supporting the Department of State. The role supports a program of national importance by modernizing and maintaining applications and infrastructure through an integrated IT Service Management approach. The engineer will lead a high-performing team and advance secure IT solutions for mission-critical diplomatic operations across more than 350 global facilities.

Requirements

• Bachelor's degree and 8 years of experience in a related field, such as network engineering, network security, firewall administration, cybersecurity, or infrastructure engineering; equivalencies are considered.
• Active Secret clearance.
• Proven experience implementing and managing NGFWs, web application firewalls, and enterprise firewall architectures in large-scale environments.
• Demonstrated expertise in firewall rule design, high-availability configurations, load balancing, and denial-of-service mitigation strategies.
• Leadership experience planning and leading firewall infrastructure projects, serving as a subject matter expert, and supervising network security teams.

Nice To Haves

• Prior experience supporting federal agencies, especially the Department of State.
• Professional certifications such as Palo Alto Networks Certified Network Security Engineer (PCNSE), Cisco CCNP Security, F5 Certified Technology Specialist (F5-CTS), or CISSP.
• Knowledge of Software-Defined Networking (SDN) and network segmentation strategies, and experience supporting more than 300 geographically distributed facilities.
• Demonstrated experience building and managing micro-segmentation platforms such as Illumio and VMware NSX-T.
• Experience with Firewall Advisory Boards, security policy development, and compliance with federal security frameworks such as NIST and FISMA.

Responsibilities

• Lead implementation and management of micro-segmentation platforms, web application firewalls, and Next-Generation Firewalls (NGFWs) across more than 350 global facilities.
• Lead troubleshooting of complex firewall issues, coordinate with DT teams, and facilitate secure connectivity with Government agencies and partner organizations.
• Lead the design, creation, implementation, and troubleshooting of firewall rules for networking devices and application communications, balancing security with business operations.
• Design and implement high-availability solutions, including load balancing and denial-of-service detection and remediation.
• Coordinate with the DT Firewall Advisory Board on rule submissions and ensure compliance with Department of State firewall policies and security standards.
• Lead network component tuning to maintain performance and security in accordance with change-management procedures and best practices.
• Develop firewall standards, procedure manuals, and performance-management procedures that meet DT/EA/CST requirements and federal compliance frameworks.
• Conduct firewall security assessments, vulnerability analysis, and threat modeling to identify and mitigate security risks.
• Serve as a technical expert across project assignments, plan and lead major firewall infrastructure initiatives, mentor team members, and supervise network security operations.

Benefits

• Flexible time off benefit.
• Learning resources and learning and development opportunities.
• Healthcare, wellness, financial, retirement, family support, continuing education, and time-off benefits.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior