Senior Network Engineer – On-Site at Quantico (Secret)

ecsfederal; Virginia (MN); On-site; USD 120,000 - 150,000; Full time

Job summary

Everforth ECS is seeking a Senior Network Engineer to design, implement, maintain, and troubleshoot enterprise network infrastructure at the Quantico, VA office, with a hands-on approach. The role emphasizes networking, switching, firewalls, DNS, and works closely with cybersecurity, development, database, and IT teams to ensure robust, secure connectivity across the enterprise.

Candidates must have 5+ years of experience in network engineering, a Bachelor's degree or equivalent, U.S.

Qualifications

• 5+ years of network engineering experience.
• Bachelor's degree in IT, CS, Engineering, Cybersecurity, or equivalent.
• U.S. citizenship and ability to obtain Secret clearance.
• Must obtain DoD 8140 certification within 90 days.

Responsibilities

• Design, administer, maintain, and troubleshoot enterprise network, server, virtualization, storage, firewall, and supporting infrastructure.
• Manage switching, routing, VLANs, network segmentation, DNS, firewall policies, NAT, VPNs, and related network services.
• Support Windows Server infrastructure and associated enterprise services.
• Diagnose complex infrastructure and connectivity issues across physical, network, virtualization, operating system, and application layers.
• Maintain virtualization, storage, backup/recovery, logging, monitoring, and authentication infrastructure.
• Perform hands-on datacenter work including rack/stack, copper and fiber cabling, optics/transceivers, hardware replacement, firmware upgrades, and physical-layer troubleshooting.
• Support infrastructure upgrades, lifecycle planning, cybersecurity requirements, and vulnerability remediation.
• Maintain and contribute to technical documentation, diagrams, SOPs, and annual system documentation reviews.

Skills

Network engineering

TCP/IP

Subnetting

VLANs

VPNs

DNS

Firewall

Windows Server

Active Directory

Education

Bachelor's degree or equivalent

Job description

Everforth ECS is seeking a Senior Network Engineer to design, implement, maintain, and troubleshoot enterprise network infrastructure at the Quantico, VA office, with a hands-on approach. The role emphasizes networking, switching, firewalls, DNS, and works closely with cybersecurity, development, database, and IT teams to ensure robust, secure connectivity across the enterprise.

Candidates must have 5+ years of experience in network engineering, a Bachelor's degree or equivalent, U.S.