Senior OT Cybersecurity Lead for Manufacturing Systems

CREGG Group; Galway; On-site; Confidential; Full time

Job summary

CREGG Group seeks an OT Cybersecurity Lead to act as the senior technical authority for cybersecurity across manufacturing equipment and production systems in Galway. You will define patching strategies, governance and supplier requirements, and lead threat mitigation across engineering, automation and manufacturing teams.

The role emphasizes hands-on OT security, asset inventories, vulnerability remediation and ensuring compliance with evolving EU regulations such as Cyber Resilience Act and

Qualifications

• Four+ years of hands-on OT cybersecurity work with asset inventory and remediation.
• Experience building or running OT patching for production equipment.
• Can build and maintain OT inventory and identify vendor support status.
• Understands PLC-based and PC-based machine control systems and assesses cybersecurity risk.
• Knows how cybersecurity requirements are written into equipment purchasing and supplier lifecycles.
• Knowledge of Cyber Resilience Act, NIS2 and AI Act impact on procurement and operation.

Responsibilities

• Maintain an accurate OT asset inventory and identify gaps and remediation priorities.
• Decide to patch, delay or compensate for vulnerabilities and document rationale and residual risk.
• Own the OT patching and firmware strategy, including assessment, testing, deployment, exception management and monitoring.
• Define cybersecurity requirements for components, machine builds and supplier-built equipment before purchase.
• Review machine builder, OEM and system integrator designs from a cybersecurity and obsolescence perspective.
• Define compensating controls for legacy and unpatchable systems, including segmentation, access restriction, allowlisting, monitoring and backup.
• Track EU regulation, including the Cyber Resilience Act, NIS2 and the AI Act, identify where it affects our purchasing and equipment, and work with Legal, Regulatory and Quality on the response.
• Provide technical direction to engineering, automation, manufacturing and enterprise cybersecurity teams, and set the standards they work to.

Skills

OT cybersecurity

Asset inventory

Vulnerability assessment

Remediation

Firmware patching

Patch management

PLC/PC control understanding

Supplier lifecycle risk

Industrial networks

Security requirements for equipment

Education

Bachelor's degree in engineering or computer science

IEC 62443 training or certification

GICSP or equivalent certification

Experience in regulated manufacturing (pharma, medical)

Tools

OT asset discovery tools

Monitoring tools

Job description

CREGG Group seeks an OT Cybersecurity Lead to act as the senior technical authority for cybersecurity across manufacturing equipment and production systems in Galway. You will define patching strategies, governance and supplier requirements, and lead threat mitigation across engineering, automation and manufacturing teams.

The role emphasizes hands-on OT security, asset inventories, vulnerability remediation and ensuring compliance with evolving EU regulations such as Cyber Resilience Act and