OT SYSTEMS ADMINISTRATOR

Galloway•Neenah, WI

10d•Onsite

About The Position

Galloway Company is seeking a skilled and driven OT Systems Administrator to serve as the primary technical owner of our Operational Technology (OT) environment, including the Foxboro control system platform and supporting infrastructure. This role is critical in ensuring the reliability, availability, and security of plant-floor systems in a 24/7 manufacturing operation. You will work cross-functionally with IT, engineering, operations, and maintenance teams to maintain and enhance OT systems while supporting automation projects and system upgrades with minimal impact to production. If you’re passionate about operational technology, system reliability, and working in a dynamic manufacturing environment, we encourage you to apply.

Requirements

5+ years’ experience in systems administration or infrastructure engineering, preferably in OT/industrial environments.
2–3 years in a manufacturing setting.
Experience designing and maintaining OT networks (segmentation, VLANs, firewalls, DMZ).
Strong server administration background (VMware/Hyper-V, Windows Server, patching, OT-appropriate backup/recovery).
Understanding of Purdue Model / ISA-95 architecture.
Familiarity with OT cybersecurity frameworks (e.g., NIST, IEC 62443) and implementation of controls.
Knowledge of industrial protocols (EtherNet/IP, Profinet, Modbus, OPC-UA).
Experience in 24/7, safety-critical manufacturing environments with high uptime requirements.
Strong documentation practices (network diagrams, configs, change logs, backups).

Nice To Haves

Foxboro experience preferred.
Familiarity with monitoring, asset management, or ticketing tools preferred.
Experience with industrial asset visibility tools a plus.
Bachelor’s degree in IT, Computer Science, or related field preferred (or equivalent experience).

Responsibilities

Administer, monitor, and maintain OT systems including industrial networks and supporting server infrastructure.
Ensure high availability, reliability, and performance of all plant-floor systems.
Proactively assess system health using tools such as System Auditor and other monitoring platforms.
Plan, design, and maintain OT network architecture aligned with best practices.
Implement and sustain cybersecurity measures including network segmentation, access control strategies, and monitoring and incident prevention.
Support a secure and stable Foxboro environment.
Manage OT server environments, including backups and disaster recovery strategies, and patch management aligned with production schedules.
Ensure minimal downtime and adherence to uptime requirements.
Support automation initiatives, plant expansions, and system upgrades.
Plan and procure Foxboro hardware for expansions and improvements.
Coordinate with Foxboro field support as the primary technical interface.
Maintain accurate and up-to-date documentation including network diagrams, system configurations and backups, and Standard Operating Procedures (SOPs).
Drive continuous improvements in system performance, reliability, and security.
Act as the primary technical liaison between IT, Engineering, Maintenance, Operations, and External vendors.
Build and maintain strong working relationships across all stakeholder groups.