Global IT Network Leader: IT/OT Segmentation & Uptime

Red Seal Recruiting Ltd.; Pittsburgh (Allegheny County); On-site; USD 120,000 - 180,000; Full time

Job summary

Red Seal Recruiting Ltd. seeks an IT Network Manager to lead a global enterprise network with deep OT expertise across offices, data centers, and plant sites. You will own WAN/LAN/WLAN, SD-WAN/SASE, firewalls, and VPN/remote access while driving IT/OT segmentation to protect uptime and safety.

You will lead a technical team, collaborate with plant engineering and cybersecurity, and elevate security controls and incident response across a multinational manufacturing footprint.

Qualifications

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

Responsibilities

• Lead global WAN, LAN, WLAN, SD-WAN/SASE, firewalls, VPN/remote access, and unified communications 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 between enterprise and plant networks.
• 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

Network engineering

OT networking

BGP OSPF

Education

Bachelor

Tools

Fortinet FortiGate

Cisco Meraki

EtherNet/IP

Modbus TCP

PROFINET

OPC UA

Job description

Red Seal Recruiting Ltd. seeks an IT Network Manager to lead a global enterprise network with deep OT expertise across offices, data centers, and plant sites. You will own WAN/LAN/WLAN, SD-WAN/SASE, firewalls, and VPN/remote access while driving IT/OT segmentation to protect uptime and safety.

You will lead a technical team, collaborate with plant engineering and cybersecurity, and elevate security controls and incident response across a multinational manufacturing footprint.