Senior Thermal Engineer
// Role Summary
Join Leonardo as a Senior Thermal Engineer in Luton, shaping the future of defence technology by developing cutting-edge Electronic Warfare systems. This hybrid role offers a tangible impact on high-tech defence projects within multidisciplinary teams.
// Key Responsibilities
- Conduct thermal analysis using software, CFD, and hand calculations.
- Provide expert guidance on cooling strategies and thermal design improvements.
- Define and verify thermal requirements across Leonardo products.
- Support product development through all project phases.
- Collaborate with cross-functional teams, suppliers, and customers.
- Benefit from a comprehensive benefits package including flexible working and professional development.
// Role Specification
About the Role
Leonardo UK is seeking an experienced Senior Thermal Engineer to play a pivotal role in the development and production of cutting-edge Electronic Warfare (EW) systems. You will contribute to both new innovations and proven legacy products, based at our Luton site with the flexibility of hybrid working. This is an opportunity to make a tangible impact across a wide range of high-tech defence projects.
You will work at the heart of multidisciplinary project teams, advising on thermal performance and ensuring our products meet demanding environmental and operational requirements. This role is ideal for someone with a strong analytical mindset, a flair for problem-solving, and the ability to manage complex interdependencies across multiple programmes and business units.
What you'll do:
- Conduct thermal analysis of mechanical designs to assess performance and safety using thermal analysis software, CFD techniques, and classical hand calculations.
- Provide expert guidance on cooling strategies and recommend thermal design improvements as required.
- Advise on materials and manufacturing techniques with an emphasis on thermal performance and mechanical integrity.
- Define thermal requirements and develop methods for verifying compliance across Leonardo products.
- Drive innovation in thermal design, introducing new technologies and methodologies.
- Support product development through all phases—from design and testing to final certification.
- Deliver thermal solutions that meet performance requirements on time and within budget.
- Contribute to technical documentation, including material for peer reviews and stage/gate approvals.
- Collaborate across sites and with suppliers and customers through occasional travel.
What you'll bring:
- Degree in Mechanical or Aeronautical Engineering with post-graduate experience in Thermal engineering.
- Proven expertise in thermal analysis, with a track record of developing equipment for challenging and extreme operating environments.
- Proficiency in CFD tools, preferably Ansys Icepak and Ansys Fluent, alongside a solid foundation in classical hand calculation methods.
- A good understanding of environmental testing for design verification, with familiarity in Mil-Std-810 and RTCA DO-160 standards considered a strong asset.
- Knowledge of Regulatory Standards including but not limited to: Def Stan 00-970, Health and Safety HSE Regulations including Hazardous Waste Regulation. Compliance with Pressure Equipment Regulation, Pressure System Safety Regulation and Fluorinated Gas Regulations.
- Awareness of equipment safety compliance requirements, including the ability to support inspection processes and generate fault and failure reports.
We are keen to hear from you even if you might not have experience in all the above; a good attitude and willingness to learn are the most important skills.
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).
Why join Leonardo?
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.
- 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.
- 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.
Leonardo is a global leader in Aerospace, Defence, and Security, employing over 53,000 people worldwide, including 8,500 across 9 sites in the UK. We are committed to building an inclusive, accessible, and welcoming workplace where a diverse workforce sparks creativity and drives innovation.
Be part of something bigger - apply now!