ICS / OT Security Engineer (Hybrid, Riyadh, SAR Salary)

Requirements:

• Bachelors degree in Engineering, Computer Science, Cybersecurity, or a related field.
• 4+ years of hands-on experience in ICS/OT networks, industrial automation, or control systems security.
• Experience working with major PLC vendors such as Siemens, Allen-Bradley, Schneider, and ABB.
• Strong understanding of industrial communication protocols including Modbus, DNP3, Profinet, OPC-UA, and others.
• Knowledge of OT cybersecurity frameworks such as ISA/IEC 62443 and MITRE ATT&CK for ICS.
• Experience with industrial firewalls, OT IDS, and segmented network architectures.
• Practical skills in securing ICS/SCADA environments and supporting critical infrastructure operations.

Responsibilities:

• Design and implement secure OT network architectures following the Purdue Model.
• Configure, secure, and maintain ICS/OT components, including PLCs, HMIs, RTUs, DCS, and SCADA systems.
• Conduct OT/ICS cybersecurity assessments aligned with NIST 800-82 and IEC 62443 standards.
• Implement network segmentation, system hardening, and continuous monitoring within industrial environments.
• Integrate OT security tools and sensors such as Dragos, Claroty, and Nozomi.
• Support OT SOC operations, including incident response, threat hunting, and vulnerability management.
• Collaborate with automation, engineering, and networking teams to ensure secure deployment of industrial systems.
• Provide expertise in securing industrial operations and critical infrastructure clients.