BAE Systems
Principal Engineer – Software Assurance

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Principal Engineer – Software Assurance
Job Title: Principal Software Assurance Engineer
Location: Barrow-in-Furness, Brough, Frimley, Weymouth, Filton or Portsmouth
We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role.
Salary: Competitive
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.
Job Description
As a Principal Software Assurance Engineer, you will be responsible for planning and executing assurance activities, reviewing software and system documentation whilst engaging stakeholders to ensure requirements are met. You will be managing risk and reporting alongside applying lifecycle, systems and assurance expertise within a growing role offering broad exposure and further development.
Core Duties
- You will be working with our customer to agree an acceptable approach to risk elements
- You will be responsible for planning and carrying out software assurance activities including reviews of plans, processes, witnessing testing, inspections and auditing
- You will be reviewing software plans, documentation and software aspects of system-level plans and documents to provide timely and meaningful feedback
- You will be responsible for engaging with System Designers, Software Developers and other engineering disciplines in the design process to ensure that software meets requirements
- You will be required to document the level of risk, provide evidence and reporting for Senior Management
- You will be working with a range of stakeholders at all levels to resolve non-conformances and programme risks
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Essential Skills
- You will require a strong grasp of lifecycle principles and a familiarity with various software types, including programmable electronics
- You will need to have an understanding of the systems engineering lifecycle and its relationship to software development
- Good experience in Software Assurance methods and processes, including audit and review
- You are required to have an understanding of the application of software engineering, Cyber security, quality and systems and safety software standards
The Software Assurance Team
This is a growing role with significant potential for development and growth. We expect the candidate to quickly understand the development, use and control of software in our complex application, actively involved in decision making and problem resolution for critical design aspects, offering broad exposure and development. 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: 6th July 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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