Global OT Security Architect – Identity & Networks

Key Responsibilities
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Responsibilities include but are not limited to:

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• Network Architecture & Segmentation
  
• Define and own secure OT network architecture aligned to IEC 62443 zone and conduit models utilising firewalls and data diodes.
  
• Establish defense-in-depth architecture across OT, IT/OT DMZ, safety systems and remote access zones.
  
• Define secure connectivity for OT–IT, OT–Cloud and vendor integrations.
  
• Review and approve OT network changes for cyber-physical risk impact.
  
• Integrate identity-aware networking and Zero Trust principles where operationally feasible.
  
• Oversee firewall rule lifecycle management, including review, validation, documentation and periodic recertification.
  
• Ensure firewall configurations suppor...