OT & IT Systems Engineer: PLC/DCS & Network Security

Lanxess Corporation; El Dorado (AR); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Competitive compensation

Comprehensive benefits

Work-Life flexibility

Training & Development

Diversity & inclusion

Job summary

LANXESS is seeking an IT/OT Network Administrator to maintain PLC, DCS, and SIS OT control systems and related networks at the South Arkansas sites. You will implement process control OT networks per guidelines, install and manage firewalls, and coordinate with Corporate IT to ensure secure operations.

The role requires 3–5 years in IT/OT network admin, experience with virtual networks, LANs, and DCS environments, and knowledge of Windows Server and servers. A CS-related degree is preferred.

Qualifications

• 3–5 years of relevant experience in IT/OT network administration, process control systems, or a related technical field.
• Experience administering virtual networks, LANs, and DCS environments.
• Working knowledge of servers, network switches, firewalls, and Microsoft operating systems.
• Strong troubleshooting, critical-thinking, and continuous-improvement skills.
• Associate or Bachelor's degree in CS or related field preferred.

Responsibilities

• Maintain PLC, DCS, and SIS OT control systems and OT networks across LANXESS South Arkansas sites.
• Implement and maintain process control OT networks per LANXESS PCT OT guidelines.
• Install, configure, and manage firewalls to support secure process control operations.
• Maintain connectivity to central servers supporting OSI PI, APC, and other required apps.
• Design, install, and repair network infrastructure including cabling, telemetry, switches, routers, and microwave links.
• Install OS updates, security patches, and deployments across PCS computers, servers, switches, firewalls, and VMs.
• Manage site IT infrastructure including CCURE, video surveillance (ExactVision/Unify), UPS.
• Coordinate with Corporate IT, desktop support, servers/storage, and conference room teams.
• Serve as the primary site contact for IT contractors and onsite support.

Skills

IT/OT network admin

DCS environments

Troubleshooting

Critical thinking

Continuous improvement

Windows Server

Education

Associate or Bachelor's degree in CS/related field

Tools

Virtual networks

LANs

Firewalls

DCS environments

Windows Server

Job description

LANXESS is seeking an IT/OT Network Administrator to maintain PLC, DCS, and SIS OT control systems and related networks at the South Arkansas sites. You will implement process control OT networks per guidelines, install and manage firewalls, and coordinate with Corporate IT to ensure secure operations.

The role requires 3–5 years in IT/OT network admin, experience with virtual networks, LANs, and DCS environments, and knowledge of Windows Server and servers. A CS-related degree is preferred.