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Senior Network Engineer

Location

Aberdeen, MD, USA

Job Type

Full-Time

Clearance Level

TS/SCI

About the Role

The Opportunity

Join a mission-focused team supporting secure, classified network environments for national security programs. This role is hands-on and focused on CSfC implementations, VPN architectures, and enterprise network engineering across complex, high-assurance environments.

What You’ll Do
Design, configure, and troubleshoot secure network infrastructures (LAN/WAN)
Implement and support CSfC solutions and secure communications
Build and maintain VPNs (IPSec, IKEv2, site-to-site, client VPN)
Configure Cisco routers/switches, Palo Alto & SonicWall firewalls
Support Aruba wireless (ClearPass, controllers, APs)
Work within VMware environments (ESXi, vSphere)
Enforce STIG compliance and system hardening
Utilize tools like SolarWinds, NetFlow, SEM for monitoring
Maintain network documentation, diagrams, and configs

What You Bring
Active TS/SCI
8+ years of network engineering experience (DoD or enterprise)
Strong experience with:
Cisco (ASR, ISR, Catalyst, Nexus)
Firewalls/VPNs (Palo Alto, Cisco ASA, SonicWall)
Routing: BGP, OSPF, EIGRP
Hands-on experience with IPSec VPNs & secure network design
Solid understanding of network security & STIGs

Nice to Have
CSfC experience
F5 Load Balancers
PKI / certificates (EJBCA, RHCS)
TACLANE or encryption devices
RHEL / Windows Server exposure
Certs (Preferred)
CCNP (Enterprise) or higher
Security+ CE
CCNA

Why Join
Direct impact on national security missions
Work on cutting-edge secure network systems
High-visibility role with strong technical ownership
Apply Today

If you're a hands-on engineer who thrives in secure, high-performance environments, we’d love to connect.

Requirements

This role is hands-on and focused on CSfC implementations, VPN architectures, and enterprise network engineering across complex, high-assurance environments.

About the Company

LCS Defense is Based in Maryland 

Info@lcsdefense.com

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