Network Engineer, Lead - Cisco ISE / Firepower

Experteer Overview In this role you lead secure network engineering to support critical national security missions in a highly classified setting. You will work closely with cross-functional cybersecurity and mission teams to design, implement, and maintain resilient network infrastructure. You’ll tackle complex security challenges and drive improvements in performance, security, and reliability. This is a hands-on, impact-focused position at a respected defense contractor. Compensation / Benefits * Lead secure network engineering and operational support in a highly classified environment * Configure, administer, and troubleshoot Cisco ISE for authentication, authorization, accounting, network access control, and policy enforcement * Administer and optimize Cisco Firepower and FMC, including policy administration, rule management, and troubleshooting * Design, implement, and maintain secure network infrastructure (routers, switches, firewalls, VLANs, ACLs, VPNs, segmentation) * Troubleshoot Layer 2/Layer 3, firewall, authentication, and access control issues * Support AAA, 802.1X, VPN, RMF, STIG, and secure configuration requirements * Develop and maintain network diagrams, implementation plans, SOPs, and technical documentation * Partner with cybersecurity, systems administration, and mission teams to deliver secure, resilient infrastructure solutions * Support incident response, outage resolution, root cause analysis, and network remediation efforts * Recommend improvements to strengthen network performance, security, and reliability Tasks * U.S. citizenship required * Active TS/SCI clearance required with SAP eligibility * Bachelor’s degree in a related technical field, or additional relevant experience in lieu of a degree * 8+ years of network engineering experience in enterprise, defense, intelligence, or other highly regulated environments * Strong experience with Cisco ISE and Cisco Firepower/FMC * Experience supporting AAA, 802.1X, VPN, RMF, and STIG requirements * Active DoD 8140/8570 IAT II certification required (e.g., Security+ CE, CySA+, SSCP) * Strong knowledge of Layer 2/Layer 3 networking, routing, switching, VLANs, ACLs, subnetting, and segmentation * Experience troubleshooting Cisco routers, switches, firewalls, and enterprise networks * Ability to work independently and solve complex technical problems * Strong written and verbal communication skills Key requirements * healthcare benefits * paid leave * retirement plans * insurance programs * education and training assistance

FULL_TIME Layer 2/Layer 3, firewall, authentication, and access control issues * Support AAA, 802.1X, VPN, RMF, STIG, and secure configuration requirements * Develop and maintain network diagrams, implementation plans, SOPs, and technical documentation * Partner with cybersecurity, systems administration, and mission teams to deliver secure, resilient infrastructure solutions * Support incident response, outage resolution, root cause analysis, and network remediation efforts * Recommend improvements to strengthen network performance, security, and reliability Tasks * U.S. citizenship required * Active TS/SCI clearance required with SAP eligibility * Bachelor’s degree in a related technical field, or additional relevant experience in lieu of a degree * 8+ years of network engineering experience in enterprise, defense, intelligence, or other highly regulated environments * Strong experience with Cisco ISE and Cisco Firepower/FMC * Experience supporting AAA, 802.1X, VPN, RMF, and STIG aaaa Benefits * Active DoD 8140/8570 IAT II certification required (e.g., Security+ CE, CySA+, SSCP) * Strong knowledge of Layer 2/Layer 3 networking, routing, switching, VLANs, ACLs, subnetting, and segmentation * Experience troubleshooting Cisco routers, switches, firewalls, and enterprise networks * Ability to work independently and solve complex technical problems * Strong written and verbal communication skills Key requirements * healthcare benefits * paid leave * retirement plans * insurance programs * education and training assistance