Network Engineer

VTG; Chantilly (VA); On-site; USD 120,000 - 160,000; Full time

Job summary

VTG seeks a skilled Network Engineer with 5+ years of experience to design, implement, and support enterprise network infrastructure in Chantilly, VA. You will configure routers, switches, firewalls, VPNs, and load balancers, monitor performance, and enforce security across the network.

The role requires collaboration with systems, cloud, and security teams, plus strong documentation and adherence to best practices. A Bachelor’s degree is required and TS/SCI is not specified here.

Qualifications

• 5+ years of hands-on network engineering or administration experience.
• Experience designing and supporting enterprise LAN/WAN infrastructure.
• Familiarity with security controls, VPNs, and access management.
• Experience with network monitoring and troubleshooting tools.
• Strong documentation and collaboration skills.

Responsibilities

• Design, implement, and maintain LAN/WAN network infrastructure
• Configure and manage routers, switches, firewalls, and load balancers
• Monitor network performance, availability, and capacity; identify and resolve issues proactively
• Troubleshoot network outages and performance bottlenecks across multiple environments
• Implement and maintain network security controls, including firewalls, VPNs, and access controls
• Support network upgrades, patches, and infrastructure improvements
• Collaborate with systems, cloud, and security teams to support business and technical requirements
• Maintain network documentation, diagrams, and standard operating procedures
• Ensure compliance with organizational policies and industry best practices

Skills

Routing & Switching

Network Security

Troubleshooting

LAN/WAN

TCP/IP

OSPF/BGP

VPN

Python/Bash

Security best practices

Education

Bachelor's degree in Computer Science or related field

Tools

Cisco/Juniper/Arista hardware

Palo Alto/Fortinet/Cort Cisco ASA firewalls

SolarWinds

Wireshark

Job description

Overview

VTG is seeking a skilled Network Engineer with at least 5 years of experience designing, implementing, and supporting enterprise network infrastructure. The ideal candidate will have strong expertise in routing, switching, network security, and troubleshooting, with a focus on ensuring high availability, performance, and security across the organization's network environment.

Overview

VTG is seeking a skilled Network Engineer with at least 5 years of experience designing, implementing, and supporting enterprise network infrastructure. The ideal candidate will have strong expertise in routing, switching, network security, and troubleshooting, with a focus on ensuring high availability, performance, and security across the organization's network environment.

What will you do?

• Design, implement, and maintain LAN/WAN network infrastructure


• Configure and manage routers, switches, firewalls, and load balancers


• Monitor network performance, availability, and capacity; identify and resolve issues proactively


• Troubleshoot network outages and performance bottlenecks across multiple environments


• Implement and maintain network security controls, including firewalls, VPNs, and access controls


• Support network upgrades, patches, and infrastructure improvements


• Collaborate with systems, cloud, and security teams to support business and technical requirements


• Maintain network documentation, diagrams, and standard operating procedures


• Ensure compliance with organizational policies and industry best practices

Do you have what it takes?

• Active TS/SCI with Polygraph required.


• Bachelor's degree in computer science, Software Engineering, or related field.


• 5+ years of experience in network engineering or network administration


• Strong knowledge of networking fundamentals (TCP/IP, DNS, DHCP, VLANs, routing protocols such as OSPF, BGP)


• Hands-on experience with network hardware (e.g., Cisco, Juniper, Arista)


• Experience configuring and managing firewalls (e.g., Palo Alto, Fortinet, Cisco ASA)


• Familiarity with VPN technologies (IPSec, SSL VPN)


• Experience with network monitoring and troubleshooting tools (e.g., SolarWinds, Wireshark)


• Strong understanding of network security principles


• Proficiency with Linux/Unix systems and basic scripting (Python, Bash)