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# Systems Administrator

- **Company:** Optomi LLC
- **Location:** Moncks Corner, SC, United States
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Dynamic Host Configuration Protocol, Linux, Domain Name System (DNS), Monitoring of Systems, Subnetting, Network Troubleshooting, Windows Servers, Microsoft Network Monitor, Paessler Router Traffic Grapher, Red Hat Enterprise Linux, Server Virtualization, Symantec Endpoint Protection, TCP/IP, Tripwire, Virtualization Technology, VMware Virtualization, Network Switches, Veeam, Server Operating Systems & Platforms, Vmware
- **Published:** October 18, 2026
- **Apply:** https://www.careerboard.com/us/en/find-jobs-in-United-States/-77FB62229BCE287E36/

## About the Role

* The ability to make an immediate impact on essential infrastructure initiatives and day-to-day operations.
 * Working with an established technical team in a highly virtualized, on-premises environment.
 * The opportunity to apply and expand technical skills across Windows, Linux, virtualization, networking, and security platforms.

Experience of the right candidate:

 * Strong experience administering Microsoft Windows Server and Red Hat Enterprise Linux (RHEL) environments.
 * Hands-on experience supporting VMware virtualization technologies and virtual server infrastructure.
 * Experience with enterprise backup and recovery solutions, endpoint protection, and security monitoring platforms.
 * Strong understanding of enterprise networking concepts, including TCP/IP, DNS, DHCP, subnetting, and network troubleshooting.
 * Experience troubleshooting complex server, application, and infrastructure issues.
 * Strong written and verbal communication skills, with an emphasis on technical documentation and collaboration.
 * Ability to work independently, prioritize issues, and support critical infrastructure in an established team environment.
 * Familiarity with security frameworks, compliance requirements, and formal change management processes.
 * Previous experience in a NERC CIP-regulated environment is a plus.

## Description

* Administer, maintain, and troubleshoot Microsoft Windows Server and Red Hat Enterprise Linux (RHEL) systems.
 * Support and maintain VMware virtualized infrastructure and associated server environments.
 * Evaluate, test, and deploy operating system and application patches in accordance with established procedures.
 * Troubleshoot Microsoft Active Directory and related infrastructure services.
 * Perform advanced technical troubleshooting across server, application, and infrastructure components.
 * Support enterprise backup and recovery solutions, including Veeam Backup & Replication.
 * Maintain and troubleshoot security and infrastructure monitoring platforms, including Symantec Endpoint Protection, Tripwire, and PRTG Network Monitor.
 * Assist with plant network switch configuration, connectivity troubleshooting, and system monitoring.
 * Apply established security, compliance, and change management practices while maintaining accurate technical documentation.
 * Collaborate with team members to resolve infrastructure issues, support high-priority projects, and maintain reliable day-to-day operations.
 * Participate in a rotating 24x7x365 on-call support schedule as needed.
 * Contribute to the stability, security, and ongoing improvement of mission-critical OT infrastructure.