OT Systems Administrator

Robert Half is partnering with a manufacturing company in the Appleton/Neenah area to help them hire an Operational Technology (OT) Systems Administrator. This role will support and help modernize the infrastructure that runs its production environment. You'll focus on the servers, networking, and supporting technologies behind critical manufacturing systems rather than end-user support.

The company is in the early stages of a significant OT modernization effort that includes network segmentation, infrastructure upgrades, and security improvements. You'll work alongside internal teams and external partners to support these initiatives while helping maintain a highly available production environment.

Responsibilities

• Support and maintain OT servers, infrastructure, and network environments
• Assist with infrastructure modernization projects involving networking, Active Directory, and security improvements
• Coordinate with external vendors and implementation partners on larger projects and upgrades
• Troubleshoot infrastructure issues and help drive resolution efforts
• Support backup, patching, monitoring, and system administration activities
• Maintain technical documentation, diagrams, and operational procedures
• Build relationships with engineering, operations, maintenance, and external technology partners
• Learn and support critical manufacturing applications and OT platforms
• 3+ years of systems administration, infrastructure, or related IT experience
• Experience supporting Windows Server environments
• Strong networking fundamentals, including switch management and network communications
• Basic understanding of cybersecurity concepts and security best practices
• Ability to work independently, research issues, and take initiative
• Strong communication and organizational skills
• Associate's degree or equivalent experience

Preferred Experience

• Manufacturing, industrial, or OT environment experience
• Exposure to virtualization technologies
• Experience supporting network infrastructure projects
• Familiarity with industrial control systems, SCADA, DCS, PLC, or related technologies
• Experience working with vendors, consultants, or implementation partners