TS/SCI Network Engineer - Secure, Scale & Optimize

Adaptic LLC; Annapolis (MD); On-site; USD 95,000 - 140,000; Full time

Job summary

Adaptic LLC in Maryland seeks a Network Engineer to design, secure, and operate high‑assurance networks supporting DoD and Intelligence Community missions. You’ll configure routers, switches, and firewalls, design VLANs/VRFs, and implement robust security controls in fast‑paced environments.

The role offers opportunities across design, implementation, and operations, with collaboration across systems, security, and customer teams to ensure reliable, resilient connectivity.

Qualifications

• Active TS/SCI with polygraph is required.
• Experience with routing, switching, and network security.
• Experience with Cisco IOS, PAN-OS or similar platforms.
• Familiarity with VLANs, VRFs, segmentation and traffic management.
• Strong troubleshooting skills across network infrastructure and connectivity.
• Experience in fast-paced, operational environments.
• A degree in Network Engineering, Information Technology, or a related field (or equivalent experience).

Responsibilities

• Configure and optimize network devices, including routers, switches, and firewalls.
• Design and support network segmentation (VLANs, VRFs) and virtualization.
• Implement and manage network security controls (IDS/IPS, NextGen firewalls).
• Monitor network performance, capacity, and availability across distributed systems.
• Troubleshoot connectivity issues and resolve complex network problems.
• Support network operating system installation, upgrades, and patching.
• Develop and maintain network backup and recovery procedures.
• Identify and mitigate network vulnerabilities to enhance system security.
• Support virtualized network environments, including VMware-based infrastructure.
• Collaborate with system administrators, engineers, and security teams to support mission needs.

Skills

Network engineering

Routing & Switching

Network security

VMware ESXi

Cisco IOS / PAN-OS

Troubleshooting

Virtualized networks

IDS/IPS

VM/network monitoring

DoD IC environment

Security certifications

Education

Bachelor's degree in Network Engineering, IT, or related field

Tools

Cisco IOS

PAN-OS

VMware ESXi

IDS/IPS tools

Network monitoring tools

Job description

Adaptic LLC in Maryland seeks a Network Engineer to design, secure, and operate high‑assurance networks supporting DoD and Intelligence Community missions. You’ll configure routers, switches, and firewalls, design VLANs/VRFs, and implement robust security controls in fast‑paced environments.

The role offers opportunities across design, implementation, and operations, with collaboration across systems, security, and customer teams to ensure reliable, resilient connectivity.