Job Description

Key Responsibilities: Responsibilities include but are not limited to:

1. 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 support deterministic traffic, legacy protocols and high availability requirements in OT environments.

  • 2. Remote Access (Internal & Third Party)

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