Sr. Systems Administrator

Interplastic Corporation•Pryor Creek, OK

5d•$80,000 - $130,000•Hybrid

About The Position

The Sr. Systems Administrator is a senior-level, hands-on infrastructure role responsible for supporting the reliability, security, and lifecycle management of IT and OT-adjacent systems across IP Corporation’s manufacturing environments. This role blends traditional Systems Administration responsibilities with manufacturing infrastructure ownership, network engineering, automation, virtualization, and onsite operational support. This individual will serve as a key technical owner for manufacturing infrastructure outcomes, partnering closely with plant leadership, Controls & Automation teams, Desktop Operations, and centralized IT teams to ensure production-critical systems remain stable, secure, and supportable.

Requirements

5+ years of Systems Administration, Infrastructure Engineering, or related IT infrastructure experience.
Proven experience supporting manufacturing, industrial, or OT-adjacent environments.
Hands-on experience supporting onsite infrastructure operations in production environments.
Experience supporting plant shutdowns, infrastructure cutovers, maintenance windows, or high-risk operational changes.
Strong Windows Server administration experience.
Experience supporting virtualization platforms such as VMware; Nutanix experience is preferred.
Strong networking fundamentals including switching, VLANs, routing, firewalls, ACLs, and segmentation.
Familiarity with manufacturing technologies such as SCADA, HMI, historians, FactoryTalk, ThinManager, or similar industrial platforms.
Experience with scripting, automation, or infrastructure-as-code concepts for operational efficiency.
Strong troubleshooting, root-cause analysis, and problem-solving abilities.
Excellent communication, documentation, and organizational skills.
Ability to work independently while maintaining strong accountability and ownership.
Willingness to travel approximately 20–25% to manufacturing sites as needed.
Ability to support occasional after-hours or weekend work during shutdowns or maintenance activities.

Nice To Haves

Experience supporting multi-site manufacturing environments.
Exposure to OT security frameworks and industrial cybersecurity best practices.
Experience transitioning environments from vendor-led to internally managed support models.
Prior mentoring, technical leadership, or lead Systems Administration experience.
Experience supporting enterprise manufacturing environments with high uptime and operational reliability expectations.

Responsibilities

Serve as the primary technical owner for manufacturing IT and OT-adjacent infrastructure at assigned plant locations.
Maintain and support Windows Server environments supporting manufacturing and operational systems.
Manage virtualization platforms including VMware environments and future-state Nutanix AHV infrastructure.
Support infrastructure hosting SCADA, HMI, historian, and manufacturing applications.
Design, maintain, and troubleshoot industrial and manufacturing IT networks including switches, VLANs, firewalls, routing, and DMZ environments.
Maintain secure OT/IT connectivity and segmentation aligned with cybersecurity and operational best practices.
Develop and maintain scripting or automation solutions for infrastructure, monitoring, configuration management, and network operations.
Plan and execute infrastructure activities during scheduled plant shutdowns, maintenance windows, upgrades, and cutovers.
Provide onsite support for production-impacting incidents, manufacturing connectivity issues, and operational infrastructure needs.
Support basic onsite IT needs such as workstation connectivity, printer support, and plant-floor access issues while partnering closely with Desktop Operations.
Participate in vulnerability remediation, incident response activities, risk reviews, and OT security initiatives.
Maintain accurate documentation including network diagrams, inventories, SOPs, lifecycle tracking, and operational standards.
Collaborate cross-functionally with manufacturing operations, engineering, automation, vendors, and enterprise IT teams.
Drive continuous improvement efforts that reduce operational risk, improve resiliency, and reduce vendor dependency.