Network Engineer

Arthur Grand Technologies Inc•Richmond, VA

2h•Onsite

About The Position

Network Engineer supporting hybrid infrastructure. Manages routing, switching, firewalls, VPN, SD-WAN, and network security; supports monitoring, troubleshooting, resiliency, and secure connectivity. Network Engineer to support and maintain a secure, stable, and high-performing enterprise network environment. This role is responsible for administering and troubleshooting core networking infrastructure across multiple office locations, data centers, and remote access environments. The Network Engineer is a hands-on technical role responsible for routing, switching, firewalls, VPN connectivity, wireless infrastructure, and network resiliency. The position works under the direction of the Director of Infrastructure & Operations and collaborates with Infrastructure, Information Security, End User Services, Application/Data Services, vendors, and service providers. This role emphasizes operational discipline, secure network design, structured change management, and reliable service delivery within a government environment.

Requirements

Routing and switching – Required – 5 Years
TCP/IP networking – Required – 5 Years
VLAN configuration – Required – 3 Years
VPN administration – Required – 3 Years
Firewall administration – Required – 4 Years
Wireless networking administration – Required – 3 Years
Network troubleshooting – Required – 5 Years
LAN/WAN support – Required – 4 Years
SD-WAN support – Required – 2 Years
Network monitoring tools – Required – 3 Years
DNS fundamentals – Required – 3 Years
Network performance analysis - Required – 3 Years
Cisco networking technologies – Required – 4 Years
Remote access technologies – Required – 3 Years
Circuit troubleshooting – Required – 3 Years
Carrier/vendor coordination – Required – 2 Years
Network resiliency concepts – Required – 2 Years
High availability concepts – Required – 2 Years
Network documentation/diagramming – Required – 2 Years
Network segmentation – Required – 2 Years
Firewall rule management – Required – 3 Years
Secure remote connectivity – Required – 3 Years
Access control concepts – Required – 2 Years
Vulnerability remediation support – Required – 2 Years
Security incident support – Required – 1 Years
Change management execution – Required – 2 Years
Maintenance window coordination – Required – 2 Years
Incident response participation – Required – 2 Years
Root cause analysis – Required – 2 Years
Structured troubleshooting methodology – Required – 4 Years
Communication and collaboration – Required – 3 Years
Operational discipline – Required – 3 Years
Independent work capability – Required – 3 Years
Prioritization under pressure – Required – 3 Years
Experience administering enterprise network environments
Strong knowledge of routing and switching concepts
Experience with firewalls, VPNs, and secure remote access
Experience troubleshooting network connectivity and performance issues
Familiarity with wireless networking technologies
Understanding of structured operational and change management processes

Nice To Haves

BGP – Desired – 2 Years
Dynamic routing protocols – Desired – 3 Years
Advanced firewall administration – Desired – 3 Years
Cisco ASA or NGFW experience – Desired – 2 Years
SD-WAN design/optimization – Desired - 2Years
QoS configuration – Desired – 2 Years
Azure networking – Desired – 1 Years
Hybrid cloud networking – Desired – 1 Years
Zero Trust networking concepts – Desired – 1 Years
SIEM/network logging integration – Desired - 1Years
IDS/IPS familiarity – Desired - 1Years
Government IT experience – Desired – 2 Years
Multi-site enterprise experience – Desired – 3 Years
Experience with Cisco networking technologies
Experience with SD-WAN and hybrid network environments
Experience in government or regulated environments
Familiarity with network monitoring and logging tools
Knowledge of security frameworks such as NIST
Relevant certifications such as CCNA or CCNP

Responsibilities

Administer enterprise routing and switching infrastructure
Configure and maintain LAN, WAN, wireless, and remote access environments
Support hybrid MPLS and SD-WAN connectivity across multiple locations
Maintain network availability, resiliency, and performance
Administer firewalls, VPN solutions, and secure remote connectivity
Implement and maintain network segmentation and access controls
Support secure connectivity for cloud and hybrid environments
Coordinate firewall rule changes and network security updates
Monitor network health, utilization, and performance
Respond to outages, connectivity issues, and infrastructure incidents
Perform network troubleshooting across routing, switching, wireless, and VPN environments
Conduct root cause analysis and implement corrective actions
Support implementation of network security controls and standards
Collaborate with the Information Security Office on vulnerability remediation and risk reduction
Assist with logging, monitoring, and audit activities
Support secure configuration and hardening practices
Execute network changes through defined change management processes
Validate planned changes and maintain rollback procedures
Participate in maintenance windows and operational planning
Maintain network documentation and diagrams
Coordinate with telecommunications providers and vendors
Support circuit provisioning, troubleshooting, and escalations
Assist with hardware lifecycle and support renewals
Partner with Systems Administration on infrastructure dependencies
Coordinate with End User Services regarding user-impacting network issues
Support Application/Data teams with connectivity and performance needs
Communicate operational risks and system impacts to leadership