Senior SCADA/OT Systems Admin — VMware & NERC CIP

Recru; Houston (TX); On-site; USD 110,000 - 150,000; Full time

Job summary

Recru is seeking an IT/OT Systems Administrator to maintain SCADA/GMS platforms and support virtualization in a critical infrastructure environment. The role focuses on reliability, security, and collaboration with IT, OT, vendors, and stakeholders in Houston, TX.

The candidate will manage VMware vSphere/ESXi/vCenter, Nutanix AHV, Windows Server AD/GP, and drive patching, backups, and DR planning while ensuring NERC CIP compliance and robust cyber defenses.

Qualifications

• 10+ years of IT/OT Systems Administration experience across enterprise infrastructure and virtualization.
• SCADA/GMS administration and support.
• Experience with VMware vSphere/ESXi/vCenter.
• Nutanix AHV and hyperconverged infrastructure expertise.
• Windows Server administration and AD/GP.
• DNS/DHCP/TCP/IP networking proficiency.
• Backup, disaster recovery, and business continuity planning.
• Security monitoring and endpoint protection deployment.
• Patch management and vulnerability remediation.
• NERC CIP compliance knowledge and cybersecurity controls.

Responsibilities

• Administer and support SCADA/GMS and OT applications.
• Manage VMware, Nutanix, and hyperconverged environments.
• Perform server administration, patching, upgrades, and troubleshooting.
• Support disaster recovery, backup operations, and high availability.
• Ensure NERC CIP compliance and cybersecurity policies.
• Collaborate with IT/OT teams and vendors to maintain reliability and security.

Skills

IT/OT Systems Administration

SCADA/GMS Administration

VMware vSphere/ESXi/vCenter

Nutanix AHV/Hyperconverged Infra

Windows Server Administration

Active Directory & Group Policy

DNS/DHCP/TCPIP Networking

Backup/Recovery & BC

Security Monitoring/Endpoint Tools

Patch Management & Vulnerability

Infrastructure Monitoring & Troublesho

NERC CIP Compliance & Cybersecurity

Job description

Recru is seeking an IT/OT Systems Administrator to maintain SCADA/GMS platforms and support virtualization in a critical infrastructure environment. The role focuses on reliability, security, and collaboration with IT, OT, vendors, and stakeholders in Houston, TX.

The candidate will manage VMware vSphere/ESXi/vCenter, Nutanix AHV, Windows Server AD/GP, and drive patching, backups, and DR planning while ensuring NERC CIP compliance and robust cyber defenses.