Job Title
Principal Thermal Mechanical Engineer
Location
Cowes, Portsmouth Broad Oak, Great Baddow, 3 days a week onsite
Flexible Working Arrangements
We offer a range of flexible working arrangements - please speak to your recruiter about the options for this particular role.
Salary
Up to £77,100 (dependent on skills and experience) Part time & accruing hours available. Please let us know if you would like to discuss these options.
Who we are
Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology‑led defence, aerospace and security solutions of tomorrow, shaping a safer future, for all of us.
From the depths of the ocean, to the far reaches of space, there's no limit to where a career at BAE Systems could take you.
Role Description
The Principal Thermal Mechanical Engineer leads mechanical engineering for new radar technologies, providing expert thermal mechanical guidance across design, build, integration and test. As a subject matter expert in thermal systems and related disciplines, they may also act as Mechanical Design Authority for future radar products.
Core Duties
* Provide direction and technical expertise to a small team of mechanical/CAD engineers developing new radar products, while organising and overseeing associated project work packages.
* Effectively liaise with the project engineering manager, the project manager and the project technical authority in pursuance of the project aims.
* Review and coach the mechanical engineering team while providing strong technical leadership and effective stakeholder management.
* Act as a subject matter expert in the area of Thermal Mechanical Engineering discipline.
* Be a strong influencer in the Mechanical Engineering community, embracing change and continuous improvement throughout the organisation and implementing design changes.
* Update and comply with company standards, processes and guidelines.
* Provide input into engineering estimates.
* Be proficient in the use of SAP PDM tool for maintaining and updating design data.
Essential Skills
* Degree or equivalent experience in a technology, engineering, science or IT‑related discipline.
* Experience and knowledge of designing and implementing thermal management systems.
* Experience and knowledge of the design, build, test and use of composite structural materials.
* Familiarity with modelling and simulation tools for analysing structural behaviour under static and dynamic load, shock and vibration.
* Familiarity with the content, applicability and use of relevant standards.
* Experience and knowledge of engineering lifecycles, from requirements capture through to in‑service support.
* Holding CEng status, or working towards it, or relevant equivalent experience.
Benefits
As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts – you may also be eligible for an annual incentive.
Future Radar Team
Join us in shaping the Future of Radar Technology. Building on our heritage of cutting‑edge, world‑leading radar products, we are rapidly evolving our portfolio to enhance existing capabilities while pioneering brand new systems designed to counter emerging and future threats across the battlespace. Through close collaboration with our customers and sustained investment in exceptional talent, we are committed to remaining at the forefront of defence innovation and defining the next generation of radar solutions for Future Air Dominance.
Workplace Commute
Our workplace in Cowes is an easily accessible commute from Southampton with a regular foot passenger ferry and BAE shuttle service from the ferry terminal to site.
Working Approach
Our working approach will enable you to have flexibility with your working hours, depending on your role and location. This could include accruing hours as well as flexibility around start and finish times, ensuring you can balance life at work, on site and life at home.
Security and Vetting
Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.
Closing Date
15th April 2026
We reserve the right to close this vacancy early if we receive sufficient applications for the role. Therefore, if you are interested, please submit your application as early as possible.
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