OT Cyber Security Senior Manager
We are seeking an experienced OT Cyber Security Senior Manager to lead the development and delivery of operational technology security across a complex, highly connected environment. This role will establish and execute a strategic security roadmap covering industrial control systems, supervisory control and data acquisition environments, manufacturing technology, plant networks, and other critical operational assets. You will provide expert guidance to senior stakeholders, balancing cyber risk, operational resilience, safety, availability, and business performance.
You will lead a team of OT security professionals and work closely with IT security, engineering, operations, infrastructure, risk, compliance, and external partners. Key responsibilities include defining OT security policies, standards, architecture, and governance; overseeing vulnerability management, network segmentation, threat monitoring, incident response, and security assurance; and ensuring that security is embedded throughout the lifecycle of OT systems, from design and procurement through deployment, maintenance, and decommissioning. You will also coordinate risk assessments, penetration testing, audits, crisis exercises, and remediation programmes, while supporting investigations and response to cyber incidents affecting operational environments.
The successful candidate will bring significant experience leading OT, ICS, SCADA, industrial, or critical infrastructure cyber security programmes, together with a strong understanding of recognised frameworks and standards such as IEC 62443, NIST CSF, NIST SP 800-82, and relevant regulatory requirements. You should have a proven record of managing teams, budgets, suppliers, and complex transformation initiatives, with the ability to communicate technical and operational risk clearly to executive audiences. Strong stakeholder management, influencing, decision-making, and programme leadership skills are essential. Professional certifications such as CISSP, CISM, GICSP, GRID, or equivalent qualifications are desirable. Experience developing security operating models, improving cyber maturity, and delivering measurable risk reduction in safety-critical or geographically distributed environments will be highly valued.
OT Cyber Security Senior Manager
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