Global IT/OT Network Manager — Segmentation & Uptime

Pernini Legal, Inc.; Pittsburgh (Allegheny County); On-site; USD 120,000 - 180,000; Full time

Job summary

Pernini Legal, Inc. seeks an IT Network Manager to lead a global enterprise network spanning offices, data centers, and manufacturing sites. You will drive IT/OT segmentation, ensure uptime, and coordinate with plant engineering, cybersecurity, and leadership.

The role requires strong leadership and deep OT networking experience. You will oversee WAN/LAN/WLAN, SD-WAN/SASE, firewalls, VPN, and UC platforms while collaborating across domestic and international sites.

Qualifications

• 10+ years enterprise network engineering/operations
• 5+ years in network leadership
• 3-5 years OT/industrial control networking in manufacturing or industrial settings
• Purdue Model expertise (Levels 0-5) including IT/OT segmentation
• Strong knowledge of BGP, OSPF, VLANs, switching, QoS, high availability, SD-WAN/SASE, and next-generation firewalls
• Familiarity with EtherNet/IP, Modbus TCP, PROFINET, OPC UA, PLCs, HMIs, SCADA
• Willingness to travel domestically and internationally and support after-hours changes

Responsibilities

• Lead, mentor, and develop the network team; own priorities, standards, budgets, and lifecycle planning
• Direct global WAN, LAN, WLAN, SD-WAN/SASE, firewalls, VPN/remote access, and UC platforms
• Design resilient, high-availability networks and drive incident response, root-cause analysis, and continuous improvement
• Develop and implement Purdue Model-based IT/OT segmentation, industrial DMZs, and controlled communications
• Lead OT network assessments, asset inventories, plant segmentation roadmaps, and secure vendor remote-access practices
• Work with cybersecurity and plant teams on OT monitoring, vulnerability management, incident response, and recovery planning
• Oversee network infrastructure for site openings, acquisitions, and integrations; manage carriers and technology partners
• Coordinate plant-safe change windows and support audits, cyber insurance reviews, and security controls

Skills

Network leadership

Enterprise network engineering

IT/OT segmentation

BGP & OSPF

SD-WAN/SASE

Firewall management

Industrial control systems

Plant networking

Education

Bachelor’s degree

Tools

Fortinet FortiGate

Cisco Meraki

Webex Calling

VPN/ZTNA

Claroty

Job description

Pernini Legal, Inc. seeks an IT Network Manager to lead a global enterprise network spanning offices, data centers, and manufacturing sites. You will drive IT/OT segmentation, ensure uptime, and coordinate with plant engineering, cybersecurity, and leadership.

The role requires strong leadership and deep OT networking experience. You will oversee WAN/LAN/WLAN, SD-WAN/SASE, firewalls, VPN, and UC platforms while collaborating across domestic and international sites.