An established engineering and technology consultancy is looking for a Principal Cyber Security Consultant to support the delivery of complex and high-profile programmes across defence, critical national infrastructure and operational technology environments. This organisation promotes professional development, offering a supportive environment alongside opportunities to expand technical capability, gain certifications and progress into leadership roles. You will have the opportunity to work on technically challenging projects that directly support national capability and resilience. The Role: Deliver cyber security consultancy services, risk assessments and security assurance activities across Defence, CNI and OT environments Develop security governance documentation, policies and controls aligned to client and regulatory requirements, such as ISO27001 and IEC 62443 Support and advise stakeholders on technical cyber security challenges and secure by design approaches Contribute to project delivery, business development and mentor junior team members Requirements: Cyber security professional with experience across defence, aerospace and/or national infrastructure environments with an understanding of operational technologies Background in conducting and managing security assurance and accreditation activities, relevant certifications, such as CISSP, CISM, CISMP, CCSP, ISO27001 or GICSP or similar Experience in segmenting and securing industrial OT/ICS networks; ..... full job details .....