Technical Specialist - OT Security
We are seeking a Technical Specialist – OT Security to strengthen the protection, resilience and reliability of operational technology environments. In this role, you will support the security of industrial control systems, manufacturing networks, critical infrastructure and connected operational assets. You will work closely with engineering, operations, IT, risk and compliance teams to identify vulnerabilities, reduce cyber risk and ensure that security controls are practical, proportionate and aligned with operational requirements.
Your responsibilities will include assessing OT networks and systems, maintaining asset inventories, reviewing network architecture and segmentation, and supporting the implementation of secure remote access, monitoring and vulnerability management processes. You will contribute to risk assessments, threat modelling, incident response, security investigations and recovery activities relating to OT environments. The role will also involve developing and maintaining security standards, procedures and technical documentation; reviewing supplier and third-party access; supporting audits; and helping deliver security improvements throughout the OT asset lifecycle. You will monitor emerging threats and vulnerabilities affecting industrial systems and provide clear, practical recommendations to technical and non-technical stakeholders.
The successful candidate will have experience in OT, ICS, SCADA, industrial networking or a closely related cybersecurity discipline. You should understand common industrial protocols, network security principles, system hardening, vulnerability management and incident response, as well as the operational and safety considerations associated with production environments. Familiarity with recognised OT security frameworks and standards, such as IEC 62443, NIST or equivalent, is desirable. Relevant professional certifications and experience with security monitoring, firewalls, endpoint protection or secure remote-access technologies would be advantageous. Strong analytical, communication and stakeholder-management skills are essential, together with a structured approach to problem-solving and the ability to work effectively in environments where availability, safety and operational continuity are critical.
Technical Specialist - OT Security
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