OT Security Engineer

No Limit Technology

📍 Riyadh, 01, Saudi Arabia

Full-time other-general Posted June 06, 2026

Job Description

OT Security Engineer Experienced OT Security Engineer with strong expertise in securing Industrial Control Systems (ICS), SCADA, and Operational Technology (OT) environments. Responsible for implementing cybersecurity controls aligned with Saudi NCA requirements, conducting risk assessments, and supporting compliance initiatives. Key Requirements: 5+ years of cybersecurity experience, including 3+ years in OT/ICS security. Hands-on experience with SCADA, DCS, PLCs, RTUs, HMIs, and industrial communication protocols (Modbus, DNP3, OPC, IEC 61850, Profinet, Ethernet/IP). Strong knowledge of OT network security, segmentation, industrial firewalls, IDS/IPS, SIEM, VPNs, and secure remote access. Experience with OT security platforms such as Nozomi, Claroty, Dragos, Tenable OT, or Microsoft Defender for IoT. Skilled in OT vulnerability management, incident response, monitoring, and compliance assessments. Familiarity with Saudi NCA Essential Cybersecurity Controls and cybersecurity audit req...