Job Title\: Principal Operability Engineer Location: Barrow-In-Furness, Glasgow, Hybrid We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Negotiable 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 be reviewing and assessing the developing Submarine design to ensure it is safe, operable and habitable by its crew. This will be achieved through attendance at design reviews, review of the 3D CAD model review of design documentation and participation in experimental design and user trials, provision of design guidance and sharing of SQEP knowledge You’ll provide specialist support to safety activities e.g., HAZID, HAZOPS, ALARP Optioneering workshops. You’ll deliver specialist guidance and support to Operating Documentation Production Authority in support of OPDOC derivation and verification. Core duties: You'll be experienced in one of the following disciplines\: Manoeuvring Room/Cat A Nuclear Supervisor, Reactor Panel Operator/Main Control Desk Operator. Relevant Qualifications to skills required You'll bring knowledge across any of the following disciplines\: Electrical Generation & Distribution, Ship & Propulsion Systems You'll have operational knowledge serving on the Astute (preferred) or Vanguard Class of Submarine The Operability Team: As a Principal Engineer, You will work alongside other Ex-Submariners with experience across the full fleet of UK SSBNs and SSNs. The team of Operability specialise in all areas with whole boat experience such as Damage Control and Submarine Escape and Rescue. We offer relocation 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: 23rd March 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. LI-AG1 LI-Hybrid