Network System Administrator

About the role

Volumetric Building Companies (VBC) seeks a skilled and dependable System Administrator to join our IT team at our manufacturing facility in Berwick, PA. The role involves managing the on-premises network and server infrastructure, supporting a fast-paced manufacturing operation, and maintaining secure connections between IT and operational technology (OT) networks.

Responsibilities

• Design, configure, and maintain Palo Alto next-generation firewalls including security policies, NAT, VPN, and Panorama management
• Administer and troubleshoot Cisco Catalyst switches across access, distribution, and core layers; manage VLANs, STP, port security, and QoS
• Manage Cisco wireless infrastructure including access point deployment, WLC administration, SSID configuration, and RF troubleshooting
• Maintain and optimize VMware vCenter environments including ESXi hosts, vSphere clusters, vMotion, DRS, and HA configurations
• Administer Veeam Backup & Replication jobs, verify restore points, and execute and test disaster recovery procedures
• Manage and maintain Microsoft Azure infrastructure including virtual machines, virtual networks, Azure AD/Entra ID, conditional access policies, and hybrid identity integration with on-premises Active Directory; oversee Microsoft 365 services including Exchange Online, Teams, SharePoint, and Intune device management
• Design, implement, and maintain an Industrial DMZ (IDMZ) to securely bridge IT and OT networks in accordance with ISA/IEC 62443 best practices; manage traffic policies, data diodes, and jump hosts within the IDMZ
• Monitor network and server performance; proactively identify and resolve issues before they impact manufacturing operations
• Maintain accurate network diagrams, system documentation, and IT asset inventory
• Coordinate with vendors and MSPs for hardware procurement, support escalations, and project delivery
• Support end users on hardware, software, and connectivity issues in a manufacturing floor environment

Requirements

• 3+ years of hands-on experience as a Systems or Network Administrator
• Proficiency with Palo Alto Networks firewalls (PCNSE a plus)
• Strong experience with Cisco Catalyst switching (IOS/IOS-XE); familiarity with CLI and GUI management
• Familiarity with Cisco wireless solutions (Cisco WLC or Catalyst Center / DNA Center)
• Solid VMware vCenter/vSphere administration skills including VM lifecycle management and virtual networking
• Experience with Veeam Backup & Replication including backup job management and restore operations
• Demonstrated knowledge of Industrial DMZ (IDMZ) architecture including IT/OT network segmentation, Purdue model reference architecture, and secure remote access for industrial control systems
• Hands-on experience with Microsoft Azure (virtual machines, networking, Azure AD/Entra ID, conditional access, and identity management) and Microsoft 365 administration including Exchange Online, Teams, SharePoint, and Intune

Qualifications

• Ability to work effectively in a manufacturing or industrial environment

Preferred Qualifications

• Cisco CCNA or CCNP certification
• VMware VCP-DCV certification
• Microsoft certifications such as AZ-104 (Azure Administrator) or MS-102 (Microsoft 365 Administrator)
• Experience with industrial networking or OT/IT convergence environments
• Experience with ticketing/ITSM platforms (ServiceNow, Jira, etc.)
• Scripting skills in PowerShell or Python for automation and reporting