Principal Engineer – Mechanical Engineering (Platform Systems) Job title: Principal Mechanical Platform Systems Engineer – Components Location: Barrow-in-Furness, Filton or Broad Oak. We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this role Salary: Competitive What You’ll Be Doing

Oversee day-to-day engineering activities to ensure on-time delivery and adherence to cost targets Serve as the primary engineering interface for external customers and suppliers, fostering strong technical collaboration and communication Provide expert technical support and innovative solutions to resolve engineering challenges related to mechanical products Contribute technical guidance and engineering input to support suppliers queries, build and test activities, defect resolution, and change management processes Define, develop and manage requirements and acceptance criteria for mechanical products integrated within complex platforms, systems, or programmes Interpret and apply contractual and performance requirements throughout the product lifecycle including design, manufacture, integration, installation, and commissioning phases Ensure all work is compliant with contractual obligations and conducted in accordance with company policies, safety standards, environmental regulations, and established procedures Review, assess, and manage relevant supplier documentation, ensuring accurate capture, traceability, and appropriate storage within the project framework

Your Skills And Experiences

Proven track record in delivering mechanical systems across the full engineering development lifecycle Demonstrated ability to identify opportunities for continuous improvement and successfully drive performance enhancements Strong technical knowledge and hands-on experience in specifying a range of mechanical equipment and components, such as heat exchangers, pumps, diesel generators, hydraulic systems, and compressors Bachelor’s or Master’s degree (BEng/MEng or equivalent) in a relevant STEM discipline Chartered Engineer (CEng) status or working towards chartered status with a recognised professional engineering institution

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 Components Team As the Principal Mechanical Platform Systems Engineer, you will be joining a dynamic Components Team with BAE Systems, where you will play a key role in delivering cutting edge mechanical products used across major systems and programmes supporting the Royal Navy. You will contribute to high-impact defence projects while expanding your own professional development. We offer relocation support across all Submarine roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where you will 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 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 security and export control restrictions. These restrictions may limit eligibility based on nationality, place of birth, or other factors. All applicants must as a minimum achieve Baseline Personnel Security Standard. Higher levels of National Security Vetting may be required for some roles. Closing Date: 10th October 2025 We reserve the right to close this vacancy early if we receive sufficient applications. If you are interested, please submit your application as early as possible. Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Engineering and Information Technology

Industries

Defense and Space Manufacturing

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