Senior OT Systems Administrator – SCADA & Security Lead

RWE AG; Austin (TX); On-site; USD 127,000 - 171,000; Full time

Benefits offered by this job

Medical, Dental, Vision

401(k) match

Paid time off & Holidays

Job summary

RWE Americas, LLC is seeking a Senior System Administrator I, OT, to ensure reliability, security, and compliance of critical OT systems. The role leads complex incident resolution, designs and deploys OT infrastructure, and provides technical guidance across Windows, Linux, and virtualization domains.

The position emphasizes strong collaboration with IT, OT, cybersecurity, and field operations, with autonomy in decision-making and a focus on NERC CIP controls.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, Engineering, or related field, or equivalent practical experience
• Minimum 5 years of relevant IT experience and 5 years of OT experience
• Advanced knowledge of Windows Server, Linux, virtualization, redundancy, backup/recovery, endpoint management, monitoring, and lifecycle practices
• Foundational knowledge of Microsoft Azure and AWS concepts for future cloud adoption
• Ability to design secure, compliant on-premises infrastructure with NERC CIP controls
• Ability to diagnose complex incidents and lead root-cause analyses
• Strong documentation and cross-functional collaboration skills
• Willingness to travel to field or office locations and work around production infrastructure

Responsibilities

• Serve as technical lead for complex OT system administration issues and develop sustainable solutions
• Design, deploy, and manage on-prem OT environments supporting SCADA and secure remote operations
• Act as Tier 3 escalation point for Windows, Linux, virtualization, and infrastructure incidents
• Lead high-availability, backup verification, and disaster-recovery readiness activities
• Own configuration management and complete system documentation
• Apply system-hardening baselines per NIST or CIS guidance with cybersecurity collaboration
• Lead OS migrations, hypervisor upgrades, and cloud-readiness planning
• Manage lifecycle planning for OT infrastructure with end-of-life risk assessment
• Collaborate with SCADA, cybersecurity, and operations to ensure interoperability
• Coordinate root-cause analysis and implement durable corrective actions
• Standardize imaging, deployment, monitoring, patching, and access control
• Mentor junior administrators and lead knowledge transfer

Skills

Windows/Linux administration

Virtualization

NERC CIP compliance

Azure & AWS concepts

Incident response

Education

Bachelor's degree in IT/CS/Engineering

Tools

Azure

AWS

VMware

Active Directory

Job description

RWE Americas, LLC is seeking a Senior System Administrator I, OT, to ensure reliability, security, and compliance of critical OT systems. The role leads complex incident resolution, designs and deploys OT infrastructure, and provides technical guidance across Windows, Linux, and virtualization domains.

The position emphasizes strong collaboration with IT, OT, cybersecurity, and field operations, with autonomy in decision-making and a focus on NERC CIP controls.