Senior OT Engineer

Job description

Accountabilities 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. Requirements: 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. Benefits: 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. Opportunity to work with enterprise networking and security technologies from Fortinet, Palo Alto, Cisco, and related platforms. Senior-level ownership of complex technical challenges and infrastructure improvements. Collaboration with multidisciplinary Security, IT, Operations, engineering, and customer teams. Exposure to regulated and standards-driven environments, including NERC CIP. Remote support capabilities and a distributed working environment. Opportunities to contribute to technical standards, processes, documentation, and operational improvements. International and North American travel opportunities as required by customer and project needs. Participation in meaningful projects supporting the reliability and security of renewable energy infrastructure. How Jobgether works: We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best! Why Apply Through Jobgether? Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time. #LI-CL1 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. This is a senior operational technology engineering role supporting critical renewable energy infrastructure across distributed sites and remote operations environments.You’ll take ownership of complex OT networking and security challenges, providing advanced troubleshooting and technical leadership.The role combines network architecture, firewall administration, segmentation, cybersecurity, SCADA connectivity, and infrastructure reliability.You’ll work closely with Security, IT, Operations, engineering teams, and customers to maintain secure and resilient environments.Your expertise will directly contribute to the availability, performance, and protection of mission-critical renewable energy assets.The position offers exposure to modern OT environments at the intersection of renewable energy, industrial systems, and cybersecurity.You’ll operate with significant autonomy while contributing to a collaborative, technically demanding, and fast-moving global environment.