Network Engineer 3

About the role

This role supports and maintains a secure, stable, and high-performing enterprise network environment. The Network Engineer is a hands-on technical role responsible for administering and troubleshooting core networking infrastructure.

Responsibilities

• Network Infrastructure Administration
• 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
• Firewall & Secure Connectivity Management
• Administer firewalls, VPN solutions, and secure remote connectivity
• Implement and maintain network segmentation and access controls
• Support secure connectivity for cloud and hybrid environments
• Cookfire firewall rule changes and network security updates
• Monitoring & Troubleshooting
• 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
• Security & Compliance Support
• 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
• Change Management & Operations
• 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
• Vendor & Carrier Coordination
• Coordinate with telecommunications providers and vendors
• Support circuit provisioning, troubleshooting, and escalations
• Aid in hardware lifecycle and support renewals
• Cross-Team Collaboration
• 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

Qualifications

• Experience administering enterprise network environments
• Strong knowledge of routing and switching concepts
• Experience with firewalls, VPNs, and secure remote access
• Familiarity with wireless networking technologies
• Understanding of structured operational and change management processes

Preferred Qualifications

• 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