Senior OT Engineer

OT Engineer III

Radian Generation is a global provider of critical technology-forward services designed specifically to support the comprehensive lifecycle of renewable facilities—including solar, wind, and energy storage.

The OT Engineer III executes assigned work orders, including support tickets and project tasks to meet Managed Security Services Provider (MSSP) and other contractually defined obligations for new and existing customer facilities. This role will provide support and expertise in supporting networking and security technologies, including Fortinet, Palo Alto, Cisco is comfortable leading resolution of high-impact issues, improving network design, and ensuring stable, scalable connectivity across multiple environments.

This is an opportunity to be part of a world-class team operating at the nexus of two of the most exciting and fastest-growing sectors in renewable energy today: SCADA IT/OT and mission-critical software.

• Lead troubleshooting and resolution of complex OT network issues (L3 support)
• Design, implement, and maintain OT network architecture across sites and ROCC environments
• Configure and maintain firewalls (Fortinet, Palo Alto) including VPNs, NAT, and segmentation
• Ensure proper network segmentation between IT and OT environments
• Monitor and optimize network performance, uptime, and reliability across sites
• Support incident response and root cause analysis for network and security-related issues
• Participate in patching, upgrades, and lifecycle management of network equipment
• Collaborate with Security, IT, and Operations teams on standards and implementations

• Report project status for all recurring and non-recurring efforts as required.
• Attend staff and client meetings as required.
• Availability for 24-hour on call duty to meet customer requirements.
• Availability to make occasional, planned shifts in work hours to accommodate efforts that can only be performed after generation hours.
• Develop and document technical processes and procedures as needed.
• Ensure that required tasks are completed or directed to others as necessary.
• Effective written and oral communication at all organizational levels internally and with external customers.

• 5–10+ years in networking or OT engineering roles
• Proven experience supporting multi-site or distributed environments
• Experience working in energy, utilities, manufacturing, or industrial environments preferred
• Experience in NERC CIP-regulated environments is preferred.
• Experience in compliance programs or standard-driven environments (e.g., PCI-DSS, NIST, ISO-27001)
• Spanning Tree Protocol (STP/RSTP/MSTP) and loop prevention
• Layer 2/Layer 3 networking (VLANs, routing, failover, redundancy)
• Fortinet (Forti Gate) firewall configuration and troubleshooting
• Palo Alto firewall management (policies, NAT, VPNs)
• Cisco networking (switches, routers, ACLs, routing protocols,BGP,OSPF)
• Site-to-site and remote access VPNs
• Network segmentation and zero trust concepts in OT
• Packet capture and troubleshooting tools (Wireshark, tcpdump)
• SCADA systems, RTACs, and industrial protocols (Modbus, DNP3, OPC-UA, etc.)

• A university technical degree or minimum 3-5 years of relevant IT network experience.
• Direct or indirect service experience and/or experience providing remote support.
• Ability to read electrical, network, infrastructure, and cabling drawings.
• All applicants must have prior professional IT systems management experience and knowledge in at least two of the following fields:
• Server hardware and OS management.
• Networking and infrastructure design, implementation, and management.
• Cybersecurity, including Next-Generation Firewall configuration and management.
• Remote infrastructure and network support.
• Data storage and recovery.
• Tier 2 or Tier 3 IT network/telecommunication support.
• IT infrastructure design or support.

• Possible certification in CCNA/CCNP, Palo Alto PCNSE, Fortinet NS E ethical, responsible, and reliable.
• Exposure to NERC CIP or regulated environments.
• Self-motivated.
• Desire to learn and share newly acquired knowledge with colleagues.
• Remain cool under pressure in a fast-changing…