We’re on the lookout for a Lead Security Engineers with a passion for protecting cutting-edge technology and driving Secure by Design principles into the heart of our innovations and product. If you’re ready to make a tangible impact on national security and global defence, we want to hear from you.
Location: Basildon, Southampton, Luton or Bristol (on-site up to 4 days per week)
Travel: Occasional travel to UK and overseas customers, suppliers and other Leonardo sites
What You’ll Do
You’ll lead the way in ensuring our systems and products meet the highest standards of security assurance, collaborating with some of the brightest engineers in software, systems, and electronics. Every day will bring new challenges — and the satisfaction of knowing your expertise keeps our world-class solutions secure.
What You’ll Bring
We’re looking for an experienced professional who thrives on solving complex problems and has a proven track record in managing product security for highly regulated systems.
Skills:
Qualifications:
Knowledge/ Experience:
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.
For a full list of our company, benefits please visit our website.
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.
Be part of something bigger - apply now!
Primary Location:
GB - Southampton
Contract Type:
Permanent
Hybrid Working:
Hybrid

Leonardo is a global security company that realises multi-domain technological capabilities in AD&S.
With over 60,000 employees worldwide, the company has a significant industrial presence in Italy, the UK, Poland, and the US. It also has a commercial presence in 150 countries through subsidiaries, joint ventures and investments. A key player in major international strategic programmes, it is a technological and industrial partner of governments, defence administrations, institutions and companies.
In 2024, Leonardo recorded consolidated revenues of €17.8 bn, new orders for €20.9 bn and invested €2.5 bn in R&D. Innovation, continuous research, digitalisation and sustainability are the pillars of its business worldwide.
Stefano Pontecorvo has been the Chairman since 9 May 2023 and Roberto Cingolani has been the CEO and General Manager since 9 May 2023.
Follow Leonardo on social media:
➡️https://x.com/Leonardo_live
➡️https://www.instagram.com/leonardo_company/
➡️https://www.youtube.com/leonardocompany