Sr. Network Security Engineer III (6852)

Senior network security engineer on MetroStar's USG Eagle task order in Washington, DC, securing mission-critical federal networks as a hands-on expert expected to contribute from day one. The engineer designs and runs next-generation firewalls, VPNs, intrusion prevention and network access control, secures perimeters and internal segments with layered defences, responds quickly to incidents and vulnerabilities, keeps hardening the infrastructure, supports Zero Trust and identity-centric patterns, and explains risks and fixes to technical and non-technical stakeholders.

MetroStar requires an active Top Secret clearance, Security+ plus a platform certification such as PCNSE or a Cisco security credential, DoD 8140 alignment, ten or more years in network security engineering, and deep Palo Alto, Cisco ISE and ASA experience. The role is designated essential personnel.