Role: Senior Network Administrator
Remote (CST Time Zone)
Duration: 6+ Months
Pay Rate: $70 to $80
Overview: The Senior Network Administrator is responsible for the design, implementation, administration, and optimization of enterprise network infrastructure across on-premises and cloud environments. This hands-on role involves advanced troubleshooting (L1/L2/L3), ensuring high availability, performance, and security of LAN, WAN, SD-WAN, and Wireless technologies. The ideal candidate will bring deep expertise in enterprise networking, strong problem-solving skills, and the ability to guide network operations with minimal supervision.
Key Responsibilities:
- Manage enterprise-wide network operations with proven expertise in L1/L2/L3 troubleshooting for LAN, WAN, Wireless, and SD-WAN.
- Configure, deploy, and troubleshoot Cisco Catalyst & Nexus switches, Cisco ISR/ASR routers, and wireless controllers/APs.
- Handle wireless deployments (Cisco, Aruba, Extreme, Meraki), including code upgrades, AP onboarding, client authentication, guest access, and WLC troubleshooting.
- Administer Cisco ISE 802.1x, Cisco DNAC, and SD-Access technologies.
- Deploy and manage Aruba/SilverPeak SD-WAN and troubleshoot traffic routing/failover across MPLS, VPLS, P2P, and ISP circuits (ATT, COX, Starlink).
- Support and troubleshoot Infoblox DNS/DHCP and Amazon Route53 DNS services.
- Manage and maintain A10 & F5 load balancers, including VIP troubleshooting and certificate renewals.
- Lead cloud network deployments (AWS, Azure, GCP), including Meraki switch provisioning, templates, and configurations.
- Perform IOS upgrades, VLAN configurations, routing protocol (OSPF, EIGRP, BGP) management, and build device configurations from scratch.
- Monitor and maintain network performance using tools like SolarWinds, Wireshark, Debugging, EEM, Python, Automation.
- Maintain 100% uptime for all critical network devices by developing resilient designs and conducting failover testing.
- Document network topologies, configurations, and create support documentation for systems and applications.
- Ensure compliance with network policies, ITSM, and ITIL best practices.
- Mentor junior staff and provide advanced technical guidance to the network team.
Qualifications & Skills:
- 12+ years’ experience in enterprise network administration with exposure to Datacenter Networking and Software-Defined Networks.
- Proven expertise in network engineering, performance analysis, and troubleshooting.
- Strong working knowledge of LAN/WAN protocols, routing (OSPF, BGP, EIGRP), and modern enterprise security practices.
- Hands-on experience with Extreme, Cisco, Aruba, and Meraki technologies.
- Experience in cloud networking (AWS VPCs, Azure VNets, GCP Networking) and hybrid connectivity.
- Ability to work independently and lead teams in high-pressure environments.
- Excellent critical thinking, problem-solving, and interpersonal skills.
Certifications (Preferred):
- Cisco Certifications: CCNP, CCIE (preferred).
- ITIL V4 / ITSM-related certifications.
- Six Sigma or related process improvement certifications (good to have).
Tech Stack Exposure:
- Extreme Networks: Switches, Cloud/On-Prem Wireless Controllers, Wireless APs.
- Meraki: Switches, APs, Cloud Wireless Controller, Firewall (Managed).
- Cisco: Catalyst/Nexus Switches, ISR Routers, Wireless Controllers/APs, DNAC, ISE/ACS.
- SD-WAN: Aruba SilverPeak.
- DNS/DHCP: Infoblox, Route53, Windows DHCP.
- Load Balancers: A10, F5, Cloud LB.
- Cloud Networking: AWS, Azure, GCP.
- Monitoring & Tools: SolarWinds, Wireshark, Python, Automation, Debugging, EEM.
- ISPs: ATT, COX, Starlink (resiliency & failover management).
