Job Title: Principal Engineer – Signatures (Non-Acoustic)
Location: Barrow-in-Furness, Onsite
We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role
Salary: circa £50,000 depending on skills and experience
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.
What you’ll be doing:
You’ll lead the development of the Stealth Engineering Above Water Signatures capability, working with cross‑functional teams to design low‑signature equipment and systems while helping define technical requirements, test methods, and approval criteria. You will review design documents to ensure signature compliance, lead modelling activities across radar, infrared, visual, and RF domains using both custom and commercial tools, and develop testing methodologies to validate performance. The role also involves managing research with internal teams and university partners and contributing to enhancements of stealth features on in‑service submarines.
Core duties:
You’ll have degree or equivalent experience in Maths, Physics, Electrical Engineering, or another STEM field
You’ll bring experience with modelling software, simulation tools, or programming environments
You have strong understanding of electromagnetism, radar, infrared, or visual detection technologies
You have familiarity with stealth systems, signature‑control methods, or related defence technologies
Experience in defence, large‑scale manufacturing, or work on naval or submarine systems
The Stealth Engineering Department:
As a Principal Engineer, you will be working with a team tasked with assuring the stealth performance of submarines built in Barrow. From concept system designs to the assessment of the whole submarine as part of major commissioning trials, you will be involved in all aspects of the submarine lifecycle from concept through to support of the in-service fleet. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria.
Why BAE Systems?
Here you’ll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work, this is a place where you can grow your career with confidence and be empowered to be your best. You’ll be recognised for your contribution and enjoy rewards tailored to what’s most important to you and your family, support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make.
A place where everyone can thrive:
We’re committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do.
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: 2nd 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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