Principal Systems Engineer
Confirmed on the employer's own hiring board on Oct 31, 2026. First seen by Alion on Oct 27, 2026. BAE Systems scores A on the Alion truth index.
Job Title: Principal Systems Engineer
Location: Barrow-in-Furness, Filton, Broad Oak or Coventry
We offer a range of hybrid and flexible working arrangements - please speakto your recruiter about the options for this particular role
Salary: £55,000 + 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.
Job Description:
As a Principal Systems Engineer, you will be responsible for enhancing and evolving a set of tools and ways of working that support Systems Engineering across the business. Working as part of a collaborative engineering team, you will contribute to product development, support the application of engineering best practices and help shape future capabilities. The rolealso provides opportunities to mentor colleagues and support wider transformation initiativesacross the engineering community.
Core duties:
- As part of this role, you will activelycontribute to the development of the Systems Engineering Toolbox. This will involve supporting the Engineering Ways of Working portal which is our SharePoint based front end to the toolbox. You will also help develop and improve a range of other products and capabilities across the wider toolbox ecosystem
- Support with the development of the core Systems Engineering Toolbox Enterprise Architect model - covering process definition, SysML modelling guidance and view definition, alongside architecture viewpoint generation and information architecture aspects
- You will be responsible for addressing issues with the toolbox that may have been identified during testing and user feedback
- Contribute to the development of product requirements using stakeholder needs and requirements as an input
- You will be supporting with the development of documentation to support the baselining and roll-out of the Systems Engineering Toolbox
- Manageand maintain tasks and progress updates, using the Jira toolset as required. You will be responsible for training junior members of the team within our systems engineering best practice
- Assist with business transformation and training activities where required
Essential Skills:
- You will require experience of conducting systems engineering within complexprogrammes and environments
- Knowledge and experience of Model Based Systems Engineering processes and methods will be needed
- You will need to have gained experience in transformation projects and delivering changes to ways of working
- Experience with MBSE toolsets e.g.Sparx Enterprise Architect, Cameo Systems Modeller etc
The Systems Engineering Transformation team
By joining us here in the team, you will be contributing to our wider SSNA UK Submarine defence programme. Collectively, we are tasked with transforming the way in which the programme conducts systems engineering by improving processes, guidance, methods and governance across the delivery teams to ensure that information is produced in a consistent and coherent way. We are achieving this by developing the Systems Engineering Toolbox which is a suite of tools to provide a handrail for the application of good systems engineering. 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 confidenceand 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 strongsense 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 controlrestrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the rolesyou are eligible to perform within the organisation. All applicantsmustas a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicantsmusttypically 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: 10th November 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.