Job Title: Lead Mechanical Engineer Air Purification Systems Location: Barrow-in-Furness. We offer a range of hybrid and flexible working arrangements please speak to your recruiter about the options for this particular role. Salary: Competitive What youll be doing: * Design of Air Purification and Atmosphere Monitoring systems, sub-systems and equipment for the next generation Royal Navy submarines * Undertake functional design activities, modelling and analysis * Produce design documentation, Verification & Validation evidence and safety justifications * Support specification qualification and procurement of components, working collaboratively with suppliers * Engaging with stakeholders across the cross-functional project team * Driving engineering governance through peer reviews and design reviews Your skills and experiences: Essential: * Experience in the design of gas scrubbing, filtration, and environmental control systems (e.g. CO removal, O generation, trace contaminant management, radiological hazards) ideally in complex, safety-critical environments (e.g. maritime, aerospace, defence, nuclear, oil & gas and sub-sea) * Proven capability in system lifecycle delivery from concept through to commissioning * Demonstrated leadership either through technical direction, mentoring, or project ownership * Chartered engineer or working towards professional accreditation Desirable: * Knowledge of platform-level constraints such as noise, shock, or survivability * Previous experience integrating purification systems with submarine life-support, HVAC, and emergency protocols 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 team: As a Lead Mechanical Engineer Air Purification Systems, you will play a pivotal role in the design and development of submarine Air Purification and Atmosphere Monitoring systems. This includes system-level design, technical leadership, supplier engagement, and the opportunity to steer design architecture across a major submarine programme. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where youll be able to make a real difference. Youll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where youll 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.