Irvine, California, United States · On-site
$97k–$119k/yr
Job DetailsJob Location: CTC Global - Irvine, CA 92614Salary Range: $96,523.00 - $118,539.00 Hourly SUMMARY The IT Systems Administrator is responsible for the administration, maintenance, and security of both IT (enterp…
Skills: Windows Server, Active Directory, VMware, Hyper-V, Azure
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Responsible for the administration, security, and maintenance of both enterprise IT and industrial OT environments. This includes managing servers, cloud platforms, and ensuring secure integration between corporate networks and manufacturing systems.
Requires a Bachelor's degree in Computer Science or equivalent and over 7 years of experience in systems administration and infrastructure support. Preference is given to candidates with experience in OT/manufacturing environments and relevant Microsoft or networking certifications.
Job DetailsJob Location: CTC Global - Irvine, CA 92614Salary Range: $96,523.00 - $118,539.00 Hourly
The IT Systems Administrator is responsible for the administration, maintenance, and security of both IT (enterprise systems) and OT (manufacturing/industrial systems) environments across all locations.
This role bridges enterprise IT and operational technology, ensuring reliable, secure, and scalable integration between servers, networks, cloud platforms, and manufacturing systems (PLCs, SCADA, HMIs).
The position is critical in supporting business operations, production uptime, cybersecurity initiatives (including Zero Trust), and IT convergence strategies.
IT Systems Administration (Enterprise)
Windows Server environments, Active Directory, DNS, DHCP
Virtual environments (VMware / Hyper-V)
Cloud services (Azure / M365)
Manage system performance, availability, and patching
Support identity and access management (IAM) and Group Policy
Provide Tier 2/3 escalation support for infrastructure issues
Network & Infrastructure Support
Support LAN, WAN, VPN, wireless, and cloud network connectivity
Assist with configuration and troubleshooting of network devices (switches, firewalls, APs)
Monitor infrastructure performance and availability
Collaborate with network engineering on upgrades and optimization
OT / Industrial Systems Support
PLCs, SCADA, and HMI environments
Industrial control systems (ICS) within manufacturing sites
Ensure reliable system and network communication for production equipment
Assist in troubleshooting production-impacting system issues
Coordinate with manufacturing, automation, and controls teams
IT Integration & Security
Support secure integration between IT and OT environments
Implement system-level and network-level segmentation controls
Contribute to Zero Trust Architecture initiatives
Ensure secure authentication, access controls, and system hardening across environments
Backup, Recovery & Business Continuity
Manage backup solutions for servers, systems, and critical OT data
Develop and maintain disaster recovery procedures
Participate in DR testing and incident recovery
Monitoring, Performance & Optimization
Monitor system and infrastructure performance across IT and OT environments
Identify bottlenecks, risks, and availability issues
Implement performance tuning and system improvements
Security & Compliance
Apply patches, updates, and security baselines to systems
Support vulnerability remediation and audit requirements
Ensure compliance with corporate policies and regulatory standards
Documentation & Standards
Systems configurations
Network diagrams and dependencies
OT system integrations and workflows
Follow ITIL processes (change, incident, problem management)
IT Infrastructure and Security teams
Manufacturing / Production teams
Provide guidance on system and infrastructure requirements for projects
Support & Continuous Improvement
Support Helpdesk escalation tickets
Identify automation opportunities and improve operational efficiency
Mentor junior staff and promote best practices
Qualifications
Education
Bachelor’s degree in Computer Science, Information Systems, or equivalent experience
Certifications (Preferred)
Microsoft (Azure / Windows Server) certifications
CCNA or equivalent networking certification
Security+ or equivalent
OT / ICS certifications (a plus)
7+ years of experience in:
Infrastructure / Network Support
OT / Manufacturing environment experience preferred
Experience supporting multi-site or global operations is a plus
Systems & Infrastructure
Virtualization (VMware / Hyper-V)
Microsoft 365 / Azure
Backup and recovery platforms
Networking
Firewall and VPN technologies
Wireless and enterprise networking
OT / Industrial Systems (Preferred)
PLC-connected systems
SCADA / HMI platforms
Industrial protocols (Aveva, Modbus, OPC, Ethernet/IP)
Understanding of IT segmentation and secure ICS environments
Strong troubleshooting and analytical skills
Ability to operate across IT and manufacturing environments
Effective communication across technical and business teams
Strong documentation and process discipline
High sense of urgency, especially for production-impacting issues
The Advanced Conductor
Founded in 2003, CTC Global is the industry leader in composite core technology, specializing in providing innovative power grid solutions for utility companies. We developed and manufacture the composite core used in the ACCC® Conductor, working with 35 international manufacturing partners to produce the finished ACCC® Conductor and its associated hardware deployed at over 1,250 project sites across 60+ countries worldwide. At CTC Global, our mission is clear —We aim to expand access to electricity by providing products and services that enable a fast, cost-effective, and environmentally friendly expansion of the grid, paving the way for a sustainable future. Join us as we continue to shape the future of power transmission!
Offices: 2026 McGaw Ave, Irvine, CA 92614, US
The Advanced Conductor
Founded in 2003, CTC Global is the industry leader in composite core technology, specializing in providing innovative power grid solutions for utility companies. We developed and manufacture the composite core used in the ACCC® Conductor, working with 35 international manufacturing partners to produce the finished ACCC® Conductor and its associated hardware deployed at over 1,250 project sites across 60+ countries worldwide. At CTC Global, our mission is clear —We aim to expand access to electricity by providing products and services that enable a fast, cost-effective, and environmentally friendly expansion of the grid, paving the way for a sustainable future. Join us as we continue to shape the future of power transmission!
Offices: 2026 McGaw Ave, Irvine, CA 92614, US
