OpenNash Jobs
ArcelorMittal · Luxembourg

OT Framework, Architecture & Standards Lead

LuxembourgManager or leadIT & Infrastructure

Listed on ArcelorMittal’s official careers site. Posted September 25, 2026. Check that it is still open and apply there.

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Job description

Key Responsibilities

  • Own and evolve the OT security architecture framework, policies, standards, procedures and reference patterns.
  • Update the UCF to align with the OT Tiering Framework designed with Capgemini and relevant KPMG CMA recommendations.
  • Drive NIS2 and applicable regulatory alignment for OT environments in collaboration with Legal, Risk and business teams.
  • Define control requirements proportionate to site criticality, zones, conduits and operational risk.
  • Support audits, maturity assessments, risk acceptances, exceptions and remediation governance.
  • Provide architecture assurance for programmes, designs and major OT security investments.
  • Maintain implementation guidance that enables repeatable adoption across clusters and plants.

Qualifications

  • Bachelor's or master's degree in engineering, cyber security, information systems, risk or a related field, equivalent senior experience accepted.
  • Deep understanding of OT frameworks, security architecture, industrial control systems and risk-based control design.
  • Working knowledge of NIS2, IEC 62443, NIST CSF, ISO 27001 and industrial network segmentation principles.

Experience

  • 10+ years in cybersecurity, architecture, governance, risk or audit, including 5+ years focused on OT/ICS.
  • Experience developing enterprise policies, control frameworks, reference architectures and assurance processes.
  • Experience translating assessments and regulatory obligations into implementable technical requirements.

Certifications

  • GICSP and/or IEC 62443 certification strongly preferred.
  • CISSP, CISM, CRISC, SABSA, TOGAF or ISO 27001 Lead Implementer/Auditor preferred.

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