Principal Product Security Engineer

Leonardo; Lincoln; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Time to Recharge

Pension scheme

Mental health support

Bonus scheme

Online courses

Referral programme

Flexible benefits

Flexible working

Job summary

Leonardo UK is seeking a Principal Product Security Engineer to help deliver cutting-edge defence products. You will join the Combat Air and Electronic Warfare Design Integrity team to integrate security across the product lifecycle.

Hybrid role based in Bristol, offering a comprehensive benefits package, strong career development, and active security community involvement. You will define security requirements, manage risk, and drive assurance for high‑integrity systems.

Qualifications

• Experience of ISO27001/27004/27005 and/or NIST RMF.
• Experience supporting security risk management for highly regulated products.
• Understanding of engineering development lifecycles and security alignment.
• Ability to interpret Penetration Test Reports and support remediation.
• Awareness of UK Government Assurance Processes (e.g., JSP 453/ISN2023/09).
• Professional recognition in security governance or secure architecture endorsed by CIISec/ISC2/ISACA/UKCSC.

Responsibilities

• Defining product security requirements and advising development teams.
• Develop and manage security protocols, tools, and processes.
• Create and manage artefacts like Risk Assessments, Security Cases, Remediation Action Plans.
• Drive Security Assurance through the full product lifecycle.
• Contribute to Leonardo’s UK security community and support security strategy.
• Liaise with Security experts to support ongoing Security Assurance.

Skills

ISO27001 RMF

Security governance

Security architecture

Remediation support

UK Gov Assurance

Job description

Job Description

Your Impact

Are you ready to support the delivery of product cyber resilience, at the cutting edge of future aircraft development?

Our Combat Air (CA) Electronic Warfare (EW) Design Integrity department are seeking Principal Product Security Engineers to join their team working to develop defence products of the future across all domains. As a Principal Product Security Engineer, you'll work alongside multidisciplinary product teams as part of the Combat Air and Electronic Warfare business area overseeing the integration of security throughout the product lifecycle.

Your Responsibilities Will Include

• Defining product security requirements, advising development teams on suitable implementation standards and techniques and supporting product development activities.
• Develop and manage security protocols, tools, and processes that keep our technologies 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

• Practical experience of ISO27001/27004/27005 and/or NIST Risk Management Framework(RMF).
• Experience of supporting asecurity riskmanagement system for highly regulated products based on recognisedframeworkssuch as defence, aerospace, nuclear, automotive, rail or oil and gas.
• Understanding and appreciation of the Engineering development lifecycles and how the Product Security specialism aligns.
• Ability to interpret Penetration Test Reports and support remediation activities.
• Awareness of UK Government Assurance Processes (such as the MoD Secure by Design Framework (through JSP 453 / ISN2023/09 and through legacy JSP 604 Assurance or the CAF GovAssure processes).
• 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 - Bristol - Coldharbour Lane

Contract Type

Permanent

Hybrid Working

Hybrid