OT Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior OT Engineer based in Mexico.

• Lead the troubleshooting and resolution of complex OT network and infrastructure issues, providing Tier 3 support for high-impact incidents.
• Design, implement, maintain, and improve OT network architectures across distributed customer sites and remote operations/control center environments.
• Configure, manage, and troubleshoot next-generation firewalls, particularly Fortinet and Palo Alto platforms, including VPNs, NAT, security policies, and network segmentation.
• Ensure secure separation between IT and OT environments through effective segmentation and security architecture.
• Monitor and optimize network performance, availability, reliability, and connectivity across multiple facilities.
• Support incident response, technical investigations, and root cause analysis for network and cybersecurity events.
• Participate in network equipment patching, upgrades, lifecycle management, and technology refresh initiatives.
• Work collaboratively with Security, IT, Operations, engineering teams, and customers to establish and implement technical standards.
• Support SCADA, RTAC, and industrial communication environments, including technologies and protocols such as Modbus, DNP3, and OPC-UA.
• Prepare project and work-order status updates and participate in internal and customer-facing meetings as required.
• Develop and maintain technical documentation, procedures, standards, and operational processes.
• Provide effective remote support and ensure assigned tasks are completed or appropriately delegated.
• Participate in a 24/7 on-call rotation and accommodate occasional planned schedule changes for work that must be performed outside generation hours.
• Contribute to maintaining secure, scalable, and reliable OT infrastructure across renewable energy facilities.

• 5–10+ years of experience in networking, OT engineering, IT infrastructure, or closely related technical roles; candidates with a university-level technical degree or at least 3–5 years of relevant IT network experience may also qualify.
• Proven experience supporting multi-site or distributed environments, preferably within energy, utilities, manufacturing, industrial, or other mission-critical environments.
• Strong knowledge of Layer 2 and Layer 3 networking, including VLANs, routing, failover, redundancy, and Spanning Tree Protocol technologies such as STP, RSTP, and MSTP.
• Hands-on expertise with Fortinet/FortiGate firewalls and Palo Alto firewalls, including configuration, troubleshooting, policies, NAT, VPNs, and administration.
• Strong Cisco networking experience, including switches, routers, ACLs, and routing protocols such as BGP and OSPF.
• Experience with site-to-site and remote-access VPNs, network segmentation, and Zero Trust concepts within OT environments.
• Ability to use packet analysis and troubleshooting tools such as Wireshark and tcpdump.
• Understanding of SCADA systems, RTACs, industrial protocols, and OT networking architectures.
• Professional experience in at least two relevant areas such as server and operating system management, network and infrastructure design, cybersecurity, remote infrastructure support, data storage and recovery, Tier 2/Tier 3 networking, telecommunications, or IT infrastructure engineering.
• Experience with regulated or standards-driven environments, with exposure to NERC CIP, NIST, ISO 27001, PCI-DSS, or similar frameworks considered valuable.
• Ability to read and interpret electrical, network, infrastructure, and cabling drawings.
• Strong understanding of cybersecurity principles and next-generation firewall configuration and management.
• Relevant certifications such as CCNA/CCNP or Palo Alto PCNSE are a plus.
• Strong written and verbal communication skills, with the ability to communicate effectively with engineers, end users, customers, peers, and senior stakeholders.
• Self-motivated, organized, dependable, and comfortable working independently while collaborating effectively with distributed teams.
• Able to remain calm under pressure, make sound technical decisions, and solve complex problems in a rapidly changing environment.
• Demonstrated willingness to continuously learn and share knowledge with colleagues.
• Comfortable working in electrical and industrial environments and able to demonstrate appropriate electrical safety awareness.
• Willingness to participate in a 24/7 on-call rotation, travel throughout North America or internationally when required, and occasionally lift or move equipment weighing up to 50 pounds.

• Opportunity to work at the intersection of renewable energy, OT infrastructure, SCADA, networking, and cybersecurity.
• Hands-on exposure to critical infrastructure and distributed operational environments.