Network Administrator

Network Administrator
Our client in Sugarland , TX or Atlanta, GA is seeking a Network Administrator to support, maintain, and improve enterprise network services across campus, branch, cloud, and hybrid environments. This position will provide hands-on operational support for routing, switching, wireless, SD-WAN, VPN, DNS, DHCP, and internet connectivity.
The Network Administrator will work closely with network engineering, cybersecurity, cloud operations, service desk, and business teams to maintain secure, reliable, and highly available network services.
Responsibilities

• Provide Tier I and Tier II support for enterprise LAN, WAN, WLAN, VPN, SD-WAN, DNS, and DHCP services
• Monitor and troubleshoot network performance, availability, latency, and connectivity
• Configure and support Cisco switching, wireless, and / or Meraki infrastructure
• Perform network refreshes, hardware replacements, software upgrades, and lifecycle activities
• Maintain VLANs, routing configurations, wireless services, and IP address assignments
• Support VPN, firewall, network-access control, segmentation, and secure remote-access initiatives
• Partner with cybersecurity teams on vulnerability remediation, incident response, and infrastructure hardening
• Use monitoring, packet-capture, and traffic-analysis tools to investigate network problems
• Maintain network diagrams, configurations, standards, and operating procedures
• Support automation and modernization initiatives
• Participate in scheduled maintenance windows and an on-call rotation

Qualifications

• Approximately 7 or more years of enterprise network administration or network operations experience
• Hands-on experience supporting Cisco enterprise networking environments
• Strong knowledge of routing, switching, LAN, WAN, and wireless networking
• Demonstrated network troubleshooting and root cause analysis experience
• Experience working within an enterprise ticketing or IT service-management environment
• Strong communication, documentation, and customer-service skills
• Bachelor's degree in a technical discipline or equivalent professional experience

Preferred experience

• Cisco Catalyst, Meraki, ISE, Catalyst Center, or ThousandEyes
• SD-WAN and secure remote-access technologies
• Azure, AWS, or Google Cloud networking
• Wireshark, NetFlow, or enterprise monitoring platforms
• Infoblox DNS, DHCP, and IP address management
• Ansible, Terraform, Python, PowerShell, REST APIs, or Git
• CCNA, CCNP, or another Cisco certification

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