Network Engineer L3- TS/SCI Poly required

Emtakllc; Annapolis (MD); On-site; USD 120,000 - 180,000; Full time

Job summary

Emtakllc in Annapolis Junction, MD seeks a Network Engineer to support the full lifecycle of enterprise networks—from design and implementation to maintenance and modernization. The role requires hands-on administration and the ability to translate mission needs into reliable, scalable network solutions.

Candidate must hold TS/SCI with Polygraph clearance and have experience with LAN/CAN/WAN, VPN, QoS, and network security hardening. Knowledge of Arista EOS and Cisco IOS/NX-OS is a plus.

Qualifications

• BS with 12+ years of relevant experience, or ND with 16+ years.
• Active TS/SCI clearance with Polygraph.
• Experience across LAN/CAN/WAN and VPN, QoS.

Responsibilities

• Design, implement, and maintain enterprise networks.
• Perform network upgrades and migrations across L2/L3 services.
• Coordinate with stakeholders to resolve incidents and outages.
• Translate mission needs into secure telecommunications solutions.
• Hardening of devices to meet security standards.

Skills

L2/L3 networking

VPN

QoS

Network troubleshooting

Network security

LAN/WAN

Education

BS + 12 years experience

ND + 16 years experience

Tools

Arista EOS

Cisco IOS/NX-OS

Wireshark

Tcpdump

NetFlow

Job description

Network Engineer L3- TS/SCI Poly required

• Annapolis Junction, MD

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+ 12years of relevant experience, or
• ND+ 16years 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