Principal Software Engineer – Test Environments (GCAP)

You will have a degree in Computer Science, Software Engineering, Systems Engineering, or a related discipline, together with experience delivering software solutions within a complex engineering environment.

We are looking for candidates with experience in:

Software development across the full engineering lifecycle using Agile methodologies.

Developing test environments, test frameworks, or test automation solutions.

Simulation, modelling, hardware-in-the-loop (HIL), or systems integration activities.

Working with systems engineers and multidisciplinary teams to deliver integrated solutions.

Requirements capture, verification, validation, and acceptance activities.

Digital engineering approaches and hybrid physical/synthetic test environments.

Software architectures, interfaces, and data integration within complex systems.

Engineering governance, quality standards, and regulated environments.

This list is not exhaustive, and we encourage applications from candidates who may not meet every requirement. The most important attributes are a positive attitude, a willingness to learn, and a passion for solving complex engineering challenges.

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 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!