An OT Security Specialist protects manufacturing control systems and networks from cyber threats, implementing IEC 62443 frameworks and managing the IT/OT security boundary.
Definition
An OT Security Specialist protects industrial control systems and manufacturing networks from cyber threats. They design network segmentation, assess vulnerabilities in SCADA and MES environments, and implement security frameworks like IEC 62443. As manufacturers connect previously isolated OT environments to enterprise IT networks and the cloud, this role has moved from niche to critical.
What this means when you're hiring
Demand for OT Security Specialists is exploding. Every major MES implementation that touches cloud connectivity, remote access, or ERP integration now needs someone who understands both manufacturing control systems and cybersecurity. There are not enough of them. Salaries in the UK range from £65,000 to £110,000. Senior specialists with ICS audit or incident response experience regularly exceed £120,000. Day rates sit at £550 to £850 for experienced contractors. EU roles in Germany and the Netherlands benchmark at €75,000 to €125,000.
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