Senior Network Engineer

ECS Corporate Services; Quantico (VA); On-site; USD 120,000 - 150,000; Full time

Job summary

Everforth ECS seeks a Senior Network Engineer to design, implement, and troubleshoot the enterprise network, server, virtualization, and supporting infrastructure at the Quantico, VA office.

This hands-on role emphasizes switching, firewalls, DNS, VPNs, and performance monitoring, and requires collaboration with cybersecurity, development, and database teams.

Salary ranges from $120,000 to $150,000 and on-site work at MCB Quantico is expected.

Qualifications

• 5+ years in network or infrastructure engineering.
• Strong enterprise networking knowledge (TCP/IP, VPNs, DNS, VLANs).
• Bachelor's degree in IT/CS/Engineering or equivalent.
• US citizenship and ability to obtain Secret clearance; DoD 8140 cert within 90 days.

Responsibilities

• Design, administer, maintain, and troubleshoot enterprise network and infrastructure.
• Manage switching, routing, VLANs, DNS, NAT, VPNs, and firewall policies.
• Support Windows Server infrastructure and AD services.
• Diagnose complex issues across physical, network, virtualization, OS, and application layers.
• Maintain virtualization, storage, backup, logging, monitoring.
• Perform datacenter rack/stack, cabling, firmware upgrades, and hardware replacement.
• Contribute to documentation and SOPs; support cybersecurity requirements.

Skills

TCP/IP

Routing & Switching

VPNs

DNS

Network Troubleshooting

Windows Server

Education

Bachelor's degree in IT/CS/Engineering

Tools

Active Directory

Windows Server

Job description

Everforth ECS is looking for a Senior Network Engineer to support work in its Quantico, VA office.

Position Overview

This is a hands-on position responsible for the design, implementation, maintenance, and troubleshooting of network, server, virtualization, storage, and supporting infrastructure. The role has a strong emphasis on networking, switching, firewalls, DNS, and infrastructure troubleshooting and works closely with the technical team lead, development, database, and cybersecurity personnel.

Primary 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.

Required Qualifications

• 5+ years of relevant experience in network engineering, infrastructure engineering, or a related discipline.
• Bachelor's degree in IT, Computer Science, Engineering, Cybersecurity, or related field, or equivalent education, certifications, and experience.
• Strong enterprise networking knowledge including TCP/IP, subnetting, switching, routing, VLANs, ACLs, NAT, VPNs, DNS, and network segmentation.
• Strong understanding of physical network infrastructure including Ethernet, copper/fiber, optics/transceivers, and link troubleshooting.
• Working knowledge of Windows Server, Active Directory, Group Policy, virtualization, enterprise storage, backup/recovery, and infrastructure monitoring.
• Strong cross-platform troubleshooting skills and the ability to independently research, diagnose, and resolve complex technical problems.
• Working knowledge of cybersecurity hardening principles and secure enterprise environments.
• U.S. citizenship and ability to obtain and maintain a Secret security clearance.
• Must possess or obtain an applicable DoD 8140 certification, such as CompTIA Security+ CE, within 90 days of employment.
• Ability to work primarily on-site at MCB Quantico.

Salary: $120,000 - $150,000