Project Security Manager Must be Sole UK National Permanent | £65,000-£70,000 Location: Chertsey or Portland We are seeking an experienced Project Security Manager to play a key role across multiple cutting‑edge engineering projects. You'll support product development by applying Secure by Design (SbD) principles, ensuring security assurance and compliance throughout the product lifecycle. Reporting to the Supportability Engineering Functional Lead, you will be responsible for producing and maintaining essential security artefacts, conducting risk assessments, and embedding best‑practice security methodologies into project delivery. What you'll do Lead and conduct project security risk analysis Develop and deliver security documentation in line with customer and project requirements Create and maintain Product Security Policies Input manpower and security considerations into bid proposals Chair internal and external security reviews and working groups Ensure all project security processes adhere to recognised frameworks and standards Must have skills & experience Hands‑on experience with Project Security planning and implementation (e.g., NIST 800 series) Defence or government‑sector security experience Strong background in producing SbD‑aligned security documentation Knowledge of Security/Information Assurance best practice (e.g., CESG Good Practice Guides) Experience with security risk assessment methodologies (e.g., NCSC) Excellent communication, literacy and stakeholder engagement skills Holding, or eligible to hold, SC security clearance Nice‑to‑have skills Risk Management DevSecOps Electromagnetic Compatibility TEMPEST Familiarity with Defence Security Standards (e.g., Def Stan 05‑138, Def Stan 05‑139, JSP440, Security Policy Framework ) What you'll get Full lifecycle exposure with real influence over your career development Paid overtime or TOIL (up to 24 additional days per year) Flexible working with core hours: 09:30-12:00 & 14:00-16:00 Role‑specific financial allowances Holiday shutdown between 24 December - 2 January Competitive employer‑matched pension scheme Private Medical Care with access to 50 clinics and hospitals Ongoing training and upskilling opportunities Salary‑sacrifice schemes (tech, bikes, etc.) Gym discounts and/or access to onsite facilities Company‑provided tech (laptop, mobile, home office kit) Relocation package where applicable Inclusion & eligibility We welcome applicants from all backgrounds, including those currently underrepresented in the engineering and security sectors. Please note: some roles may be subject to security and export control restrictions.