DoD Network Engineer | Secure, Scalable Network Specialist

Peraton; Linthicum (MD); On-site; USD 110,000 - 140,000; Full time

Job summary

Peraton in Linthicum, MD is seeking a Network Engineer to join a DoD-focused team responsible for secure, scalable network infrastructure. You will design and maintain LAN/WAN, implement security controls, and support mission-critical systems in a DISA environment.

The role requires DoD experience, active TS clearance with SCI eligibility, CCNA or Security+ certification, and strong skills in routing, switching, and firewall technologies.

Qualifications

• Active administration of COMSEC and secure data transfer devices.
• Experience implementing AFMAN 17-1302-O in DoD environments.
• Troubleshooting circuits and network issues in a DISA environment.
• Experience providing engineering and operation services on DoD supported networks.
• Familiarity with MPLS, VPNs, BGP, Spanning Tree, VLANs, LLDP, VoIP.
• Knowledge of multicast protocols and emerging network technologies.
• Ability to design and manage network access control with Cisco ISE and identity management.
• Implementing security policies and segmentation on Palo Alto firewalls.
• Perform firewall upgrades and ensure firewall availability.
• Conduct security assessments and STIG-based audits.
• Configure systems per STIG requirements for classified/unclassified environments.

Responsibilities

• Design, implement, and maintain a robust LAN/WAN infrastructure with security tools.
• Proactively monitor performance, uptime, and capacity; resolve bottlenecks.
• Lead root cause analysis for complex network issues and provide permanent fixes.
• Document network configurations, diagrams, and security policies.
• Stay updated on new networking technologies and evaluate benefits.
• Collaborate with other IT teams for seamless integration.
• Mentor junior engineers and support on-call rotations for critical incidents.

Skills

COMSEC background

DISA network troubleshooting

DoD networks experience

Routing & switching (MPLS, VPNs, BGP)

Multicast protocols & emerging tech

Cisco ISE administration

Network access policies by roles

Palo Alto firewall management

Firewall upgrades & patching

DISA STIGs assessments & compliance

Security clearance (TS SCI)

CCNA / Security+ certifications

Education

Associates degree + 10+ years experience

Bachelor's degree + 8+ years experience

Master's degree + 6+ years experience

PhD + 3 years experience

Tools

Cisco ISE

Palo Alto firewalls

Job description

Peraton in Linthicum, MD is seeking a Network Engineer to join a DoD-focused team responsible for secure, scalable network infrastructure. You will design and maintain LAN/WAN, implement security controls, and support mission-critical systems in a DISA environment.

The role requires DoD experience, active TS clearance with SCI eligibility, CCNA or Security+ certification, and strong skills in routing, switching, and firewall technologies.