Product Manager; Product Security

We are seeking an experienced Product Manager to lead the delivery and evolution of Product Security digital capabilities for a leading Defence client of ours. You will enable model-based cybersecurity and resilience across the enterprise, replacing document-centric practices with authoritative security models integrated across design, verification, and assurance.

• Lead delivery and continuous improvement of Product Security tool chains and digital thread integrations.
• Define and deploy reference architectures, technical baselines, and best practices for model-centric security engineering.
• Translate business and engineering needs into roadmaps, prioritized backlogs, and end-to-end traceability from security objectives to assurance evidence.
• Engage stakeholders, manage vendors, and drive adoption of secure, model-based workflows.
• Ensure compliance with standards, regulatory frameworks, and audit requirements.
• Oversee operational performance, incident resolution, and continuous improvement of Product Security capabilities.

• Degree in Systems Engineering, Cybersecurity, Engineering, Computer Science, or related field.
• 10+ years delivering Product Security capabilities in regulated, safety-critical industries (Aerospace/Defence preferred).
• Expertise in model-based product security and digital thread integration.
• Experience with threat/risk modeling, security requirements, architecture & controls, SBOM/vulnerability management, verification & assurance.
• Strong stakeholder, project, and vendor management skills.
• Eligible for security clearance.

• Agile/SAFe experience, assurance/security cases, Product Line Engineering knowledge, variant/configuration management.

If this role looks like something that ticks the boxes and looks suitable, please don't hesitate to hit apply or contact Lewis @ ARM on OR (phone number removed)