Principal Product Security Practitioner

• Degree or equivalent experience in a relevant STEM, Information Security, Cyber Security or related discipline
• Experience of Product Security, Information Assurance or Cyber Security within Critical National Infrastructures such as Defence/Financial services
• Recognised Industry Security Qualifications for example CCP, CISSP, CISM or similar (or able to achieve)
• Able to support and influence senior stakeholders by bridging technical engineering and cyber risk to support product outcomes and decisions

Salary: Competitive

Job Title: Principal Product Security Practitioner

Defence platforms operate in the world's most hostile, high consequence environments. Their survival depends on uncompromising cyber resilience across embedded hardware, tactical networks (IT) and mission critical systems (OT). The successful candidate will work as a valued member of an engineering delivery team, applying their subject matter expertise to focus on ensuring the next generation of submarine systems are developed, built and delivered to be appropriately secure and resilient within their operational environment.

• Gain sufficient understanding of a system, its concept of use and architectures to provide an accurate assessment of Product Security in terms of possible threats, potential avenues of attack and to advise on the application of secure development practices
• Your role will include the identification, analysis, and evaluation of security risks throughout the product lifecycle. Managing the Security interface between IT & OT Product families, to ensure cyber resilience of the platform
• Represent Product Security at Design Reviews, presenting risks and mitigation options to influence stakeholders to achieve agreement and buy-in
• Developing and maintaining security architecture including requirement derivation and definition
• Produce and support key Product Security deliverables, including Security Strategies, Threat assessments and Security Case artefact
• Collaborate with other engineering disciplines such as Safety Engineering to ensure and assure that the cyber interface is understood and risk aware

Location: Barrow-In-Furness

Here you'll build a career with purpose and limitless possibilities. Lifelong learning, meaningful work, and a supportive culture enable you to grow with confidence. You'll be recognised for your contribution and supported with rewards that matter most to you.

Closing Date: 15th October 2026

We reserve the right to close this vacancy early if we receive sufficient applications. If you are interested, please apply as early as possible.

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