Lead Product Security Engineer

SC Cleared Product Security Engineer – Defence

Product Security (Defence)

Predominantly onsite in Luton

Up to £89.50 p/h Inside IR35

We are currently recruiting for an experienced Product Security Engineer to join a Defence-focused engineering environment, taking responsibility for security across the full product lifecycle .

This is a hands‑on security engineering role, working directly with product development and systems engineering teams to identify security risks, define requirements, implement appropriate controls and deliver the security assurance required for complex Defence products.

Active SC Clearance is required , with the role being predominantly onsite in a secure Defence environment.

Key Responsibilities

• Undertake security risk assessments , mitigation planning and gap analysis.

• Define and manage Product Security requirements across the product lifecycle.

• Produce Security Management Plans, Security Cases, SOPs and wider assurance documentation.

• Advise engineering teams on secure product design, platform hardening and security controls.

• Support penetration testing, analyse findings and drive remediation.

• Liaise with internal and external security assurance authorities, including Defence stakeholders and the NCSC.

• Manage through-life security including vulnerability, patch and obsolescence management .

• Support security activities across development, testing and manufacturing.

• Contribute to Product Security policies, processes and training.

What We're Looking For

• Proven Product Security / Security Engineering experience within Defence, Aerospace, military or complex engineering environments.

• Active SC Clearance – essential.

• Strong understanding of UK MOD Secure by Design and Defence security assurance.

• Experience with frameworks including GovS 007, HMG IS1/IS2, ISO 27001, NIST and MOD JSPs .

• Knowledge of cryptography and key management .

• Understanding of MBSE / Systems Engineering and how Product Security integrates into the lifecycle.

• Experience with product-specific OS, firmware and software security controls.

• Relevant degree or professional qualification in Engineering, Computing, Cyber Security or a related discipline.

• Membership of CIISec, ISC2, ISACA or another recognised security body is desirable.

The Opportunity

This is an excellent opportunity for an SC-cleared security professional who wants to work at the intersection of Cyber Security, Product Security and Defence Engineering , influencing security from initial design through to deployment and in-service support.

Key requirements:

• Product Security
• Defence / Aerospace
• Active SC Clearance
• Security Engineering
• Security Assurance & Risk
• MOD Secure by Design
• MBSE / Systems Engineering
• Predominantly onsite

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