OT Server Engineer: ICS & OT Cybersecurity

INEOS Belgium; United States; On-site; USD 105,000 - 156,000; Full time

Job summary

INEOS USA is seeking an Operational Technology (OT) Server Engineer to ensure the availability, reliability, and cybersecurity of OT servers supporting ICS and plant operations at our Alvin, TX site.

You will manage OT server lifecycle, patching, backups, disaster recovery, and secure integration with DCS/SCADA, aligning with ISA/IEC 62443 and plant safety protocols. This role collaborates with Operations, Reliability, and Capital Projects to drive continuous improvement.

Qualifications

• Bachelor’s degree in Computer Science or related field
• 5 years of operational support experience in OT infrastructure
• Knowledge of ISA99, IEC62443, NIST882 standards

Responsibilities

• Build, configure, and maintain OT servers in segmented OT networks
• Manage virtualization platforms (VMware vSphere/ESXi, Nutanix) and storage (SAN/NAS) supporting ICS applications
• Maintain domain services (AD DS/OU/GPO design for OT), DNS/DHCP, NTP, and certificates for OT trust boundaries
• Health monitoring and alerting of server/computer equipment failures
• Establish and maintain KPIs for asset health, lifecycle and performance
• New server equipment installations and decommissions
• User management for servers/workstations and remote access
• Implement IT and cybersecurity policies to meet ISA/IEC 62443 guidelines
• OT server/system SME for cybersecurity projects
• Support DCS/SCADA/Historians server integration and troubleshooting
• Disaster recovery and business continuity plan audits
• Capital project support for equipment installation and startup

Skills

Client Service Oriented

Teamwork

Analytical thinking

Innovative thinking

Problem anticipation

Education

Bachelor’s degree related to Computer Science, Information Systems, Information Technology

Tools

Cisco Networking

VMware

VXRail

vSAN

NSX

Job description

INEOS USA is seeking an Operational Technology (OT) Server Engineer to ensure the availability, reliability, and cybersecurity of OT servers supporting ICS and plant operations at our Alvin, TX site.

You will manage OT server lifecycle, patching, backups, disaster recovery, and secure integration with DCS/SCADA, aligning with ISA/IEC 62443 and plant safety protocols. This role collaborates with Operations, Reliability, and Capital Projects to drive continuous improvement.