Senior Systems Administrator IT​/OT

The Senior Systems Administrator is responsible for the effective installation, configuration, operation, and maintenance of all systems hardware, software, automated meter reading systems and related infrastructure supporting Greer CPW operations across both the IT and OT networks. This role ensures that servers, operating systems, network services, and cloud software platforms remain stable, secure, and fully optimized to meet organizational needs.

• Design, configure, and maintain LAN/WAN infrastructures, including switches, routers, wireless systems, firewalls, VPNs, and remote access technologies.
• Manage network routing and services using TCP/IP, DHCP, DNS, VLANs, and routing protocols.
• Perform network performance monitoring, capacity planning, and fault resolution.
• Ensure network redundancy, resilience, and uptime through proactive planning and lifecycle management.
• Implement and maintain secure network segmentation between IT and OT environments

• Administer Windows Server platforms, including Active Directory, Group Policy, DNS, DHCP, file/print infrastructure, and authentication services.
• Manage VMware virtual environments, including host configuration, VM deployment, resource optimization, snapshots, disaster recovery, and vCenter operations.
• Oversee Microsoft 365 services such as Exchange Online, Teams, SharePoint Online, One Drive, Intune, and Entra .

• Manage Storage Area Networks (SANs) including provisioning, performance monitoring, redundancy planning, and firmware maintenance.
• Maintain enterprise backup and recovery systems, ensuring proper retention, replication, and disaster recovery compliance.

• Implement and manage firewall technologies, intrusion prevention systems, endpoint protection, and security monitoring solutions.
• Enforce cybersecurity best practices, MFA, conditional access, least privilege access controls, and patch compliance.
• Conduct security audits, vulnerability remediation, incident response, and continual risk assessment.
• Ensure adherence to internal and external security standards, including those relevant to regulated utility environments with secure boundaries between the IT and OT networks.

• Assume full responsibility of the AMI software performance for all services.
• Maintain expertise in head-end software for advanced meter vendors, ensuring systems remain synchronized with GIS and billing platforms.
• Monitor read performance, alerts, integrations, and proactively address issues to prevent customer impact.
• Develop and maintain data dashboards, utilizing tools such as Power BI for ongoing monitoring and reporting.
• Monitor, coordinate, and report on issue status and emerging trends to support timely resolution and proactive improvements.
• Collaborate with the Endpoint Field Supervisor and cross functional teams (including Billing, Engineering, Warehouse, and Customer Service) to ensure the accuracy of AMI data, the reliability of alerting, and the overall health and performance of all related systems.

• Provide advanced troubleshooting for hardware, software, network, and systems issues.
• Maintain and support mission critical systems with 24/7/365 availability
• Train employees in new technologies, tools, and best practices when needed.
• Maintain a high level of customer service, supporting internal users and assisting other teams with technical needs.
• Provide technical guidance and mentorship to IT staff and assist with complex troubleshooting escalations.

• A bachelor’s degree in computer science or related discipline.
• Five to ten years of responsible experience in network administration, operation, and support.
• Two years of automated meter infrastructure experience
• Industry Certifications preferred such as:
  • CompTIA Network+
  • CompTIA Security+
  • CompTIA Cloud+
  • CompTIA A+
  • Microsoft Azure Associate or higher level
  • VMware Certified Professional (VCP)
  • Microsoft Certified Professional (MCP)
• Ability to effectively multitask and prioritize simultaneous projects and requests
• Valid Driver's License required.
• Must have knowledge and understanding of appropriate safety procedures and be able to respond in emergency situations.
• Ability to lift 50 pounds or more.
• Demonstrated customer service skills.
• Professional demeanor and good communication skills with the ability to work well with others in a fast-paced environment.
• Demonstrates strong organizational skills (record keeping, time management, follow up, etc.).
• Strong verbal and written communication skills.
• Excellent attention to detail and sense of urgency, ability to prioritize with an emphasis on quality and accuracy of work.