Control Systems SysAdmin: 24/7 Infra, VMware & Nutanix
Horizontal Talent
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Job summary
Horizontal Talent is seeking a seasoned L3 System Administrator to join a fast-paced control systems environment in Dallas. You will administer Windows and Linux server environments, support virtualization platforms, and manage Nutanix and VMware-based environments to ensure continuous operations and security compliance.
You will participate in on-call rotations, implement patches, and collaborate with application, network, security, and functional teams to support daily operations and projects
Qualifications
- 8+ years of experience in system administration or closely related infrastructure support roles.
- Strong hands‑on experience with Windows Server and Linux administration.
- Experience with Nutanix Prism Central, VMware vSphere, vRealize Suite, vRA, vRO, and Horizon View.
- Experience supporting highly available and disaster recovery environments.
- Strong PowerShell scripting ability and experience using automation to improve efficiency.
Responsibilities
- Administer and maintain Windows and Linux server environments, ensuring stability, availability, and performance
- Support virtualization platforms, server provisioning, physical hardware lifecycle activities, and routine infrastructure maintenance
- Manage Nutanix and VMware-based environments, including VDI operations and related support tasks
- Monitor infrastructure health, performance trends, and utilization, and help resolve issues before they affect operations
- Apply security baselines, remediate compliance gaps, and support audit and reporting activities
- Implement patches and software updates using enterprise tools such as SCCM and Red Hat Satellite
- Provide tier-3 engineering support and business continuity support for control system infrastructure
- Collaborate with application, network, security, and functional teams to support daily operations and projects
- Participate in an on-call rotation to support control system environments
- Contribute to disaster recovery, fault tolerance, and continuity planning efforts
Skills
Tools
Job description
Horizontal Talent is seeking a seasoned L3 System Administrator to join a fast-paced control systems environment in Dallas. You will administer Windows and Linux server environments, support virtualization platforms, and manage Nutanix and VMware-based environments to ensure continuous operations and security compliance.
You will participate in on-call rotations, implement patches, and collaborate with application, network, security, and functional teams to support daily operations and projects
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