OT Security Engineer

The OT Security Engineer is responsible for securing Fervo's industrial control systems, including SCADA, PLCs, HMIs, and associated control networks. This role partners closely with engineering, operations, and IT teams to ensure cybersecurity is built into the design, deployment, and ongoing operation of all OT systems.Success in this role requires strong technical fundamentals in OT networking and security architecture, comfort working in mixed IT/OT environments, and a pragmatic approach to risk management in execution-heavy, safety-critical systems.RequirementsResponsibilitiesOT Security Architecture & EngineeringDesign and implement secure OT network architectures, including segmentation, firewalls, DMZs, and secure remote accessIntegrate cybersecurity controls into ICS and SCADA systems in alignment with standards such as IEC 62443 and NIST 800-82Develop and apply hardening standards for OT endpoints, including PLCs, HMIs, RTUs, and control serversPartner with automation and controls engineers to embed security into system designs, upgrades, and expansionsMonitoring, Detection & Incident ResponseDeploy and manage OT-focused security monitoring and visibility tools across control networksImplement and tune logging, intrusion detection, and anomaly detection for OT environmentsCollaborate with security operations teams to investigate, triage, and respond to OT security eventsSupport forensic analysis, recovery, and post-incident review following cybersecurity events impacting OT systemsRisk Management, Testing & CompliancePerform risk assessments and threat modeling for OT systems and development projectsCoordinate vulnerability assessments and testing with OT stakeholders and vendors in a safe, controlled mannerSupport compliance with applicable cybersecurity frameworks and regulatory requirementsMaintain documentation and support internal and third-party audits, including remediation trackingCross-Functional Collaboration & EnablementLead security reviews for new OT deployments, vendor systems, and third-party integrationsWork with operations teams to balance cybersecurity controls with safety, availability, and operational efficiencyTrain and support field engineers and operators on OT security best practices and secure system usageContribute to the development of scalable OT security standards, patterns, and best practices across FervoQualificationsRequiredBachelor's degree in electrical engineering, cybersecurity, computer science, or a related technical field (or equivalent experience)4+ years of experience in cybersecurity, with at least 2 years focused on OT or industrial control systemsStrong understanding of industrial control environments, including SCADA systems, PLCs, HMIs, and control networksWorking knowledge of industrial protocols such as Modbus, DNP3, OPC-UA, or PROFINETExperience designing and securing networks using segmentation models (e.g., Purdue Model)Familiarity with OT security monitoring, detection, or visibility platformsAbility to operate effectively in execution-focused environments where system uptime and safety are criticalPreferredExperience working in energy, utilities, oil & gas, manufacturing, or other critical infrastructure sectorsHands-on experience with automation platforms from vendors such as Siemens, Rockwell, Schneider, or ABBExperience implementing secure remote access and managing third-party vendor connectivity in OT environmentsProfessional certifications such as GICSP, GRID, CISSP, or ISA/IEC 62443Experience supporting greenfield or first-of-a-kind industrial system deploymentsLocationFervo Energy is headquartered in Houston, TX with growing offices in the Oakland, CA, Golden, CO, Reno, NV and Salt Lake City, UT. This position is eligible for hybrid work from Houston.