Overview: A long-term opportunity for a DV cleared OT Cyber Security Consultant to support risk assessment activities for a high-assurance defense programme. This role will focus on applying the IEC 62443 framework to perform structured assessments of industrial control system environments, supporting a wider multidisciplinary engineering team. Key Responsibilities: Conduct cyber security risk assessments in line with IEC 62443-3-2, 3-3, and 4-2 Engage with project stakeholders, engineers, and third-party vendors to gather relevant technical and operational information Produce clear, detailed risk reports and review peer submissions to ensure consistency and accuracy Work effectively within a remote-first team while supporting on-site engagements as required Contribute to secure system design by identifying gaps, proposing mitigations, and aligning with project security objectives Essential Requirements: Active DV clearance Strong experience in OT/ICS cyber security Proven ability to perform and write up structured cyber risk assessments Excellent communication and collaboration skills in both remote and on-site settings Desirable: IEC 62443 certification or demonstrable expertise with the standard Experience working on defence nuclear or high-integrity engineering programmes If you're interested and want to have a confidential chat, then please don't hesitate to reach out. Speak soon.