Cyber Security Consultant

• Lead OT cyber security deliverables on a major nuclear/defence programme.
• Conduct OT security risk assessments on equipment, systems and industrial environments.
• Coordinate with project teams and vendors to gather technical information and validate system details.
• Deliver security compliance activities and technical implementation aligned to standards such as IEC 62443.
• Produce security documentation, risk records and technical guidance.
• Mentor junior consultants and support quality assurance across their work.
• Contribute to secure design, architecture and control implementation in OT/ICS environments.

• You must have Active DV clearance - we cannot put you through this if you do not already have it
• Strong Operational Technology (OT) cyber security background
• Practical experience delivering components of IEC 62443 (certificate not necessary)
• Experience with risk assessments, threat analysis and security control implementation
• Ability to engage with vendors and engineering teams to source and verify technical information
• Experience working in highly regulated or critical national infrastructure environments
• Comfortable mentoring junior team members

Desirable Experience

• Defence, nuclear or wider CNI sector experience
• Knowledge of NCSC, NIST CSF, or ISO 27001
• Understanding of ICS/SCADA, PLCs, and industrial protocols

A leading defence and national security organisation is seeking a Senior Operational Technology (OT) Consultant / Senior Cyber Security Consultant to support a major new facility build within the defence nuclear sector.