OT Cybersecurity Engineer

Key Responsibilities

• Support implementation of OT cybersecurity initiatives across CII and non-CII environments.
• Perform security reviews and hardening of DCS, SCADA, HMI, PLC, RTU and engineering workstations.
• Support OT network security including segmentation, firewalls, secure remote access and Purdue Model architecture.
• Conduct/support Threat Risk Assessments (TRA), Security by Design (SBD) reviews and vendor security assessments.
• Support compliance with IEC 62443, NIST CSF, ISO 27001, CSA CCoP and PUB WSCP requirements.
• Monitor and investigate OT cybersecurity alerts using SIEM and OT security monitoring tools.
• Support vulnerability management, incident response and cybersecurity tabletop exercises.
• Work closely with plant O&M, engineering, IT, cybersecurity teams and OT vendors.

Technical Requirements

• Good understanding of OT/ICS architecture and industrial control systems.
• Experience with one or more OT systems such as ABB 800xA, Siemens PCS 7, Honeywell PKS, GE Mark VIe or Schneider Electric.
• Working knowledge of industrial protocols such as Modbus, OPC, IEC 61850, IEC-104 or DNP3.
• Exposure to OT security tools such as Claroty, Nozomi or Dragos, and SIEM platforms such as Google SecOps or Splunk.

Experience

• 4–6 years of relevant experience, preferably with exposure to:
• OT/ICS environments, particularly energy, gas and/or water
• OT/IT cybersecurity
• Critical infrastructure / CII regulatory requirements
• Cybersecurity risk assessments and audits
• Planning or supporting cybersecurity tabletop exercises