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# Senior Network Administrator

- **Company:** MANAGED STAFFING, INC.
- **Location:** Jacksonville, FL, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** LTE (Telecommunication), Microsoft Azure, Border Gateway Protocol, Data Centers, Dynamic Host Configuration Protocol, Linux, Network Address Translation, Distributed Systems, Domain Name System (DNS), Ethernet, Enhanced Interior Gateway Routing Protocol, Failover, Networking Hardware, Internet Protocol Security (IP SEC), Intrusion Detection and Prevention, Virtual Private Networks (VPN), Network Security, Network Troubleshooting, NetFlow, Network Architecture, Network Planning and Design, Network Monitoring, Routing, Network Administration, Open Shortest Path First (OSPF), Performance Tuning, Windows PowerShell, Remote Access Technology, Simple Network Management Protocols, Wireshark, Virtualization Technology, Wide Area Networks, Transport Layer Security, Load Balancing, Data Center Networking, Information Technology, SolarWinds (Software), Cisco
- **Published:** November 4, 2026
- **Apply:** https://www.thejobnetwork.com/job/36c03245-2e61-4d11-8ab6-8cc1faa89f35/senior-network-administrator

## About the Role

* Advanced knowledge of network architecture, design principles, routing, and hybrid environments.
 * Strong hands-on experience with Cisco and Palo Alto (EIGRP, OSPF, BGP, IPsec, NAT, DNS, DHCP, Panorama, GlobalProtect, SSL Decryption, Threat Prevention).
 * Experience with Cradlepoint/cellular networking (LTE/5G, WAN failover).
 * Familiar with NAC, load balancing (F5, Azure App Gateway), and SD-WAN solutions.
 * Understanding of voice/UC protocols: UDP, RTP, RTCP, QoS.
 * Knowledge of fiber/carrier Ethernet services and vendor coordination.
 * Strong troubleshooting skills using CLI, Linux, and/or PowerShell.
 * Experience with distributed computing environments and network security.

Qualifications

 * Bachelor's degree in Computer Science or related field and
 * 4+ years of professional network administration experience in a large enterprise environment.

OR

 * 8+ years of combined education, training, and hands-on experience installing, maintaining, and supporting enterprise network systems.

## Description

Seeking a Senior Network Administrator to lead the design, implementation, and support of enterprise network infrastructure across data centers and remote locations. This is a senior-level engineering role requiring deep expertise in Cisco, Palo Alto, and Cradlepoint technologies, with responsibility for architecture, troubleshooting, and Tier-3 escalation support., * Lead the design and deployment of enterprise network infrastructure across data centers, remote sites, and hybrid environments.

 * Architect secure and scalable network solutions using Cisco, Palo Alto, and Cradlepoint platforms.
 * Troubleshoot complex multi-layer network issues; perform root cause analysis and implement corrective actions.
 * Manage and optimize VPN, IPsec, SD-WAN, remote access, and WAN failover solutions.
 * Perform configuration reviews, audits, and performance optimization using network monitoring tools (SolarWinds, NetFlow, SNMP, Wireshark).
 * Support high-availability data center networking, including virtualization, interconnects, and redundancy.
 * Coordinate with carriers and vendors for provisioning fiber/Ethernet services and managing SLAs.
 * Validate and test network hardware/software for upgrades, deployments, and security enhancements.
 * Develop scripts or automation tools for monitoring, configuration, and reporting.
 * Participate in structured change management processes and compliance activities.
 * Provide Tier-3 support and mentor junior team members.
 * Document network designs, procedures, and troubleshooting steps.
 * Communicate technical issues and project updates clearly to both technical and non-technical audiences.