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# Principal Product Security Engineer

- **Company:** Leonardo View All Jobs
- **Location:** Luton, UK
- **Contract:** Permanent contract
- **Skills:** Cyber Security, Software Security
- **Published:** October 17, 2026
- **Apply:** https://www.careerjet.co.uk/job/gbff6572c3fa0906c2bbbc3116ed4bc77e/eaa

## About the Role

* 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.

## 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.