Network Engineer L3- TS/SCI Poly required with Security Clearance

Network Engineer  Location: Annapolis Junction, MD Clearance: TS/SCI with Polygraph Experience Level: L3 We are seeking a Network Engineer to support the full lifecycle of enterprise network operations—from design and implementation to maintenance, troubleshooting, and modernization. The ideal candidate brings strong analytical skills, hands‑on network administration experience, and the ability to translate mission needs into reliable, scalable network solutions. Key Responsibilities * Perform network services across the full lifecycle, including design, implementation, maintenance, and upgrades of existing networks. * Analyze network designs, specifications, engineering documents, and related technical materials. * Conduct general LAN/CAN/WAN administration, ensuring stable and secure network operations. * Schedule and execute network conversions, migrations, and cutovers. * Coordinate with users, sites, and stakeholders to resolve network and system incidents. * Translate business and mission requirements into telecommunications solutions, including LAN, CAN, WAN, voice, and video architectures. * Perform engineering analysis of telecommunications alternatives to support strategic modernization initiatives and technology refresh efforts. Required Education & Experience •     BS + 12 years of relevant experience, or •     ND + 16 years of relevant experience Desired Skills & Expertise •     Experience or working knowledge of Arista EOS (Extensible Operating System) as well as Cisco IOS or NX‑OS •     Demonstrated experience hardening network devices to meet strict security standards and implementing secure network protocols •     Hands‑on experience configuring and managing L2 and L3 network services, including VPN, QoS, network slicing, and segmentation •     Proficiency using network troubleshooting and analysis tools such as Wireshark, Tcpdump, and NetFlow to diagnose and optimize network performance