OT Security Architect

We are looking for an experienced OT Cyber Security Architect to join a growing Cyber Security practice, delivering secure and practical architectures across complex operational environments.

Consultancy experience is essential. Candidates should have a background in cyber security, technology or management consulting , with proven experience working directly with clients.

Key Responsibilities

• Design and deliver OT/ICS cyber security architectures across critical infrastructure, energy, utilities, manufacturing, transport or similar environments.
• Translate cyber risk assessments into target-state architectures, security controls and implementation roadmaps .
• Design secure IT/OT integration , including segmentation, zoning, access control, monitoring and resilience.
• Lead OT security initiatives covering secure remote access, vulnerability management and protective monitoring .
• Advise senior security, operational and engineering stakeholders on OT risk, resilience and regulatory requirements .
• Support technology selection and implementation of practical security solutions.

Key Requirements

• Strong OT cyber security architecture experience within a consultancy environment .
• Deep understanding of ICS, SCADA and OT networks .
• Experience with IEC 62443, NIST CSF, NCSC CAF, ISO 27001 and/or NIS/NIS2 .
• Proven ability to turn cyber risk into practical architecture decisions and implementation plans.
• Strong client-facing communication and stakeholder management skills.
• Experience working with senior security, engineering and operational teams.
• Strong analytical and problem-solving capabilities.

Desirable

Experience with Nozomi, Claroty, Dragos, Microsoft Defender for IoT or similar OT security platforms.

Security Requirements

Candidates must be able to meet applicable UK security clearance requirements . Some positions require at least five years of continuous UK residency .

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