BAE Systems
Principal Engineer – Systems Engineering
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Job Title: Principal Systems Engineer
Location: Barrow-In-Furness, Filton, Frimley, BroadOak, Faslane.
We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role.
Salary: Negotiable dependant on 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.
Core Duties
- Provide subject matter expertise and advice to internal and external stakeholders on Systems Engineering and Model Based Systems Engineering
- Work in collaboration with other systems engineers and domain experts to establish and agree the functional capabilities of your assigned systems of interest
- Communicate conceptual architectural designs to the appropriate technical authorities to obtain agreement and acceptance
- Liaise with internal and external stakeholders such as specialist engineer teams, MoD and industrial partners to communicate and clarify the proposed solution
Your Skills And Experiences
- Knowledge of the engineering lifecycle with experience of operating in the concept/design phase and awareness of the entire engineering lifecycle
- STEM related degree or previous experience within the Automotive/Defence/Telecommunications/Nuclear environment
- Worked on concept/designs or early proof of concept
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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.
The Systems Engineering Team
You will be joining a diverse team of 70 across the wider UK who range in specialities from electrical and electronic engineers all the way to designers and network engineers. You will have the opportunity to work closely with internal stakeholders from other work streams as well as interfacing with the MOD customer and suppliers on a regular basis. This is an exciting opportunity as you will be working on the most complex systems in the world for national defence for First of class submarine design. This is an exciting time to join BAE as the SSNA programme is growing so the potential for growth and development within this programme is great. 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.
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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: 19th August 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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