Principal Systems Engineer

Job Title: Principal Systems Engineer

Location: Frimley, Bristol, Weymouth, Portsmouth – 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

What you’ll be doing:

Manage and administer the DOORS Classic database for Dreadnought Combat Systems

Develop the DOORS database to produce and tailor information to support business reporting and the wider Acceptance process.

Support the Requirements and Acceptance Team to achieve Acceptance of the Dreadnought Combat System

Guide engagements with wider business stakeholders on the development of the toolset requirements capability to support the programme throughout its life

Support the development of wider engineering community on the use of DOORS

Your skills and experiences:

Essential:

Extensive experience using the IBM Rational DOORS Classic 9.6/9.7 as either an SME user or administrator, including use of the Rational Publishing Engine (RPE) and Requirement Interchange Format (ReqIF).

Clear understanding of the systems engineering lifecycle and the management of requirements through to acceptance

Significant experience within Systems Engineering

Desirable:

Previous experience using Jira, Confluence, Enterprise Architect

Understanding of engineering governance process and strategies

Knowledge of Combat Systems

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 Requirements & Acceptance Team:

As part of the Requirements & Acceptance Team you will play a key role in delivering the Dreadnought Combat System — on one of the UK’s most critical defence programmes. You’ll help shape the processes that drive Requirements, Qualification, and Acceptance, guiding delivery teams to achieve system assurance and operational readiness. This is a fantastic opportunity to make a real impact, working with senior stakeholders across BAE Systems, the MOD, and industry partners. You’ll gain exposure to some of the most advanced technology, structured career development, and the chance to grow your career within a world-class engineering organisation.

We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria

Why BAE Systems?

This is a place where you’ll be able to make a real difference. You’ll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you’ll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc.) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments.

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 22nd December 2025

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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