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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Network Firewall Engineer - **Company:** Feditc Llc - **Location:** Springfield, VA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Access Control List, Virtual Private Networks (VPN), Information Systems Security Architecture Professional, Network Security, Wide Area Networks, Computer Networking Systems, System Availability, Firewalls (Computer Science), Cybercrime, Firewall Services Module - **Published:** July 28, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9061112/senior-network-firewall-engineer ## About the Role 15 years' experience providing network security support on programs related to network systems and infrastructure with over 5,500 field sites, 2+ datacenters/colocation facilities, and 250,000+ users., 15+ years supporting DHS Wide Area Network 10+ years supporting DHS System ATO and C&A activities Experience supporting network modernization projects Certifications: Palo Alto Certified Network Security Engineer (PCNSE) - Active CCNP certification - Active Clearance: Must be a United States Citizen and pass a background check. Maintain applicable security clearance(s) at the level required by the client and/or applicable certification(s) as requested by FEDITC and/or required by FEDITC'S Client(s)/Customer(s)/Prime contractor(s). ## Description The Senior Network Firewall Engineer serves as the expert responsible for designing, implementing, and securing the enterprise firewall and network security infrastructure across large, complex environments. This role leads the development and integration of advanced security controls, manages enterprise firewall policies, and ensures that security architectures meet mission, compliance, and performance requirements. The engineer conducts firewall audits, risk assessments, and security evaluations to safeguard network assets across thousands of field sites and multiple datacenters. Working closely with cross-functional IT and security teams, the Senior Network Firewall Engineer ensures seamless integration of protective technologies while maintaining high availability and optimal network performance. With deep expertise in firewall engineering, security policy design, and threat mitigation, this position plays a critical role in protecting DHS and federal systems from evolving cyber threats., Infrastructure Security Stack, Development, Implementation, Integration Implement and maintain network security policies, including access control lists (ACLs), VPN configurations, NAT policies, and firewall rule sets. Keep up-to-date with the latest security threats, technologies, and best practices. Maintain documentation related to firewall configurations, policies, and procedures. Work with other IT teams to ensure seamless integration of security measures. Perform regular firewall rule audits and security assessments to ensure compliance with industry standards and best practices. 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