Firewall, VPN & DMZ Network Engineer

Leidos · Norfolk, VA · $87,100.00 - $157,450.00 We are seeking a skilled Firewall & VPN Network Engineer to join our Transport Operations team on the ‘Service Management, Integration and Transport’ (SMIT) Contract. As part of the Leidos team, you will play a pivotal role in delivering the Navy-Marine Corps Intranet (NMCI) to customers around the globe. The successful candidate will be responsible for designing, implementing, and maintaining robust & mature global network security solutions. Your expertise in configuring enterprise-grade Juniper firewalls, managing DMZ environments, engineering secure Firewall/VPN solutions, and administering Cisco network appliances will be crucial. Primary Responsibilities Support Current Operations for the United States Navy by providing VPN, DMZ, and Firewall Network Engineering Subject Matter Expertise (SME) for the largest Intranet in the world. Collaborate with the Network Operations Center, Network Administrators, and the Network Engineering Team to define and/or continuously improve: + Network Security Appliances (i.e., DMZ, VPN, Firewalls) + Test and Validate Automation and best practice insertion opportunities. + Lead development of Network SOPs/TTPs + Continuous Service Improvements (CSI) + System performance tuning and enhancements + Create and maintain Engineering Implementation Plans (EIP) Plan and execute network upgrades and maintenance activities with the NMCI Operations Manager, NOC Lead, Release Management team, and other key stakeholders. Tier III escalation support and vendor engagement supporting Incident Management activities. Active participation in Root Cause Analysis for Problem Management activities. Requirements B.S. Degree and 8–12 years of prior relevant experience. U.S. Citizen with an active DoD Secret security clearance. Must currently possess an active DoD 8570.01 IAT Level III Certification, i.e., CCNP Security, CISSP, or CASP+. Must currently possess an active Associate level Network Vendor Certification (from one of the following Vendors): Cisco, Juniper, Palo, F5 Networks. Ability to work or be called in to work during off-hours to meet customer mission support requirements. Participate in on-call rotation for Incident Management responsibilities among the Transport Operations team. Network Subject Matter Expert for operations providing Tier-III support to the NOC watch staff. Perform highly technical maintenance and configuration to firewalls, VPNs, and DMZ appliances. Extensive experience engineering and troubleshooting networks, including routing, switching, MPLS, VPNs, routing protocols (i.e., BGP, OSPF, IS-IS), switching protocols (i.e., Spanning Tree Protocol, VLANs, LLDP, VoIP), Multicast protocols, and emerging network technologies. Strong understanding and in-depth knowledge of IP network/subnet addressing. Extensive knowledge of defense-in-depth principles, Network architecture, Modern Network Topologies, Network appliance integrity, and common networking security elements. Ansible, Python, IaC network automation experience. Benefits Pay Range: $87,100.00 - $157,450.00