Principal Product Security Engineer

Leonardo; West of England; Hybrid; GBP 95,000 - 120,000; Full time

Job summary

Leonardo UK is seeking a Principal Product Security Engineer to lead security outputs across the product lifecycle for advanced defence technologies. You will work with system, software and firmware teams to ensure secure by design products and robust risk management.

In a highly regulated environment, you will define security requirements, drive assurance activities and contribute to security governance across UK sites. Applicants with industry standards experience will excel.

Qualifications

• Experience in a highly regulated industry such as defence, aerospace, nuclear, automotive, rail, or oil and gas.
• Experience implementing industry security frameworks (e.g., NIST) and security assurance (e.g., Common Criteria).
• Experience with security assurance frameworks affecting UK, NATO, and international defence partners.
• Experience integrating security into engineering lifecycles for complex non-enterprise systems.
• Professional recognition in security governance/risk management or secure architecture from CIISec/ISC2/ISACA/UKCSC.

Responsibilities

• Define product security requirements and advise development teams on secure implementation standards.
• Identify and manage security processes and tools to stay ahead of threats.
• Create and manage artefacts like risk assessments, security cases and remediation plans.
• Drive security assurance across the full product lifecycle and improve engineering capability.
• Contribute to the UK-wide Security and IA community to shape best practice.
• Liaise with security experts to support ongoing assurance.

Skills

Security governance

Security risk management

Secure system architecture

Security assurance

Regulatory experience

Job description

Job Description:

Are you enthusiastic about delivering Product and Information Security in a highly technical environment at the forefront of innovation?

Our Surveillance and Protection Technologies Design Integrity department are seeking experienced and enthusiastic Principal Product Security Engineer to join their expanding team working to develop next-generation Electronic Warfare capabilities for a variety of platforms across all domains. As a Product Security Engineer, you will be responsible, for the delivery of key product security outputs, whilst being closely integrated into system, software and firmware teams to ensure products are developed with security in mind and are secure by design.

Your responsibilities will include :

• Defining product security requirements, advising development teams on suitable implementation standards and techniques to ensure security controls are integrated within wider requirements specifications.
• Identify and manage security processes and tools to keep our products ahead of emerging threats.
• Creation and management of key artefacts such as: Risk Assessments, Security Cases and Remediation Action Plans.
• Drive Security Assurance through the full product lifecycle, ensuring every design is robust, compliant, and resilient. Contributing to continual improvement of the engineering capability.
• Contribute to Leonardo’s UK-wide Security and IA community — shaping best practice and influencing security strategy.
• Liaison with Security experts, including the Head of Product Security and Product Cyber Resilience Managers to support ongoing Security Assurance.

What you’ll bring:

• Experience of conducting security work in a highly regulated industry such as defence, aerospace, nuclear, automotive, rail or oil and gas.
• Practical experience of implementing industry best practice frameworks for secure development of capabilities (i.e. NIST) and / or security assurance (i.e. Common Criteria).
• Experience in the implementation of, or appreciation of applicable security assurance frameworks that may impact delivery to UK, NATO and wider international Defence partners (i.e. MOD Secure by Design, EU Cyber Resiliency Act etc).
• Experience in integrating security activities within wider Engineering development lifecycles to develop tightly integrated security solutions within complex, non-enterprise computing systems.
• Professional recognition in security governance and risk management, secure system architecture and design or security assurance and audit endorsed by a professional information security body such as CIISec, ISC2, ISACA or the UKCSC.

This is not an exhaustive list, and we are keen to hear from you even if you might not have experience in all the above. The most important skill is a good attitude and willingness to learn.

Security Clearance

This role is subject to pre-employment screening in line with the UK Government’s Baseline Personnel Security Standard (BPSS). An additional range of Personnel Security Controls referred to as National Security Vetting (NSV) may apply, this could include meeting the eligibility requirements for The Security Check (SC) or Developed Vetting (DV). For more information and guidance please visit: https://careers.uk.leonardo.com/gb/en/security-and-vetting

Why join us

At Leonardo, our people are at the heart of everything we do. We offer a comprehensive, company-funded benefits package that supports your wellbeing, career development, and work–life balance. Whether you’re looking to grow professionally, care for your health, or plan for the future, we’re here to help you thrive.

• Time to Recharge: Enjoy generous leave with the opportunity to accrue up to 12 additional flexi-days each year.
• Secure your Future: Benefit from our award-winning pension scheme with up to 15% employer contribution.
• Your Wellbeing Matters: Free access to mental health support, financial advice, and employee-led networks championing inclusion and diversity (Enable, Pride, Equalise, Armed Forces, Carers, Wellbeing and Ethnicity).
• Rewarding Performance : All employees at management level and below are eligible for our bonus scheme.
• Never Stop Learning : Free access to 4,000+ online courses via Coursera and LinkedIn Learning.
• Refer a friend: Receive a financial reward through our referral programme.
• Tailored Perks : Spend up to £500 annually on flexible benefits including private healthcare, dental, family cover, tech & lifestyle discounts, gym memberships and more.
• Flexible working: Flexible hours with hybrid working options. For part time opportunities, please talk to us about what might be possible for this role.

For a full list of our company benefits please visit our website.

Leonardo UK operates a grade-based salary framework with broad bands. The salary range shown reflects the approved grade band for this role, or a narrower hiring range published within that band, and is benchmarked against the external market. Exceptions above the standard range are managed through governance controls to protect internal equity.

Leonardo is a global leader in Aerospace, Defence, and Security. Headquartered in Italy, we employ over 53,000 people worldwide including 8,500 across 9 sites in the UK. Our employees are not just part of a team—they are key contributors to shaping innovation, advancing technology, and enhancing global safety.

At Leonardo we are committed to building an inclusive, accessible, and welcoming workplace. We believe that a diverse workforce sparks creativity, drives innovation, and leads to better outcomes for our people and our customers. If you have any accessibility requirements to support you during the recruitment process, just let us know.

Primary Location:

GB - Lincoln

Additional Locations:

GB - Bristol - Coldharbour Lane, GB - Luton - Cap. Green 300, GB - Southampton

Contract Type:

Permanent

Hybrid Working:

Hybrid