OT Cybersecurity Expert – Industrial Control Systems Security Principal

About the role

We are looking for a senior OT Cybersecurity Expert to lead the protection of critical industrial infrastructure in the Middle East. Based in Dhahran, you will design resilient security architectures that bridge engineering, IT, and plant operations while ensuring zero disruption to live processes.

Key responsibilities

• Design Purdue‑aligned architectures, zones/conduits, IT/OT DMZs, and secure remote access for SCADA, DCS, PLCs, and IIoT devices.
• Integrate industrial telemetry (historian data, OPC‑UA, network traffic) into SOC/SIEM platforms for real‑time threat monitoring.
• Operationalize IEC 62443, NIST SP 800‑82, and ISO 27019 standards into live‑environment controls.
• Develop and execute OT‑specific incident‑response playbooks and conduct forensic investigations.
• Perform secure‑by‑design reviews for cloud integration and IIoT initiatives without compromising safety or uptime.

Required profile

• 10+ years of progressive experience in OT security, industrial automation, or critical infrastructure protection.
• Strong technical background with industrial protocols such as Modbus, DNP3, OPC‑UA, IEC 60870‑5.
• Hands‑on expertise with OT anomaly detection, industrial firewalls, and vulnerability‑management tools.
• Bachelor’s degree in Electrical/Electronic Engineering, Computer Science, Cybersecurity, or a related field.
• Ability to translate complex technical risks into clear executive reports.

Required skills

• Industrial protocols: Modbus, DNP3, OPC‑UA, IEC 60870‑5.
• OT anomaly detection platforms.
• Industrial firewalls and network segmentation.
• Vulnerability‑management tools for OT environments.
• SIEM integration for industrial telemetry.
• Secure cloud and IIoT integration.