Network Systems Administrator

The client is seeking an experienced Network Systems Administrator to support the design, implementation, and maintenance of IT/OT network infrastructure for a new demonstration facility, serving as a key technical resource for hands on implementation, commissioning, and escalation support., * Design, implement, and maintain network infrastructure including LANs, WANs, VPNs, and wireless networks across IT and OT environments

• Configure and troubleshoot network devices including routers, switches, firewalls, and load balancers, with a focus on Palo Alto, Cisco, Siemens, and Meraki platforms
• Develop and support OT network segmentation and DMZ design, including connectivity for SCADA, Ignition adjacent systems, and PLC controllers
• Manage and administer server infrastructure including physical servers, virtual machines, and storage systems, supporting Proxmox VM migration and Scale Computing/Windows Server environments
• Monitor network performance and security, identifying and resolving issues promptly, including extended hours or occasional after hours escalations
• Review existing OT documentation and perform hands on implementation to support commissioning activities at the demonstration facility
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• 7 years of progressive experience in network administration with demonstrated IT/OT networking expertise
• Hands on experience with Palo Alto firewalls, including configuration, troubleshooting, and OT segmentation/DMZ design
• Proficiency with Cisco switching and Meraki networking and wireless solutions
• Experience with Siemens networking switches in a manufacturing, plant, or operational technology environment
• Solid understanding of OT network concepts including PLC controllers, plant networks, and OT vs traditional IT network architecture
• Strong knowledge of networking protocols and technologies including TCP/IP, DNS, DHCP, VLANs, routing, and switching, * Experience with virtualization platforms such as Proxmox, VMware, or Hyper-V, including VM migration
• Familiarity with Scale Computing or Windows Server infrastructure administration
• Experience supporting SCADA systems or Ignition adjacent connectivity in an OT environment
• Knowledge of secure remote access solutions in industrial or manufacturing environments
• Scripting or automation experience using Python, PowerShell, or similar tools
• Relevant certifications such as CCNP, CompTIA Network , Security , or equivalent