Job title: Mechanical Design Engineer – Mechanical Systems Location: Portsmouth – We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role. Salary: £36,575 – £38,575 What you’ll be doing: Conducting on board ship trials and surveys and communicating with other departments, Design Services disciplines, customers and suppliers Carrying out technical investigations into operational problems or developments, develop, and prepare solutions, individually or as a member of a team Supporting the development of best practice to increase the capability, performance of tools and processes Producing technical drawing guidance packages, detail parts lists and inventories through AutoCAD / Inventor design Represent the Mechanical / Piping team at various project design reviews for the task you are working on or supporting other colleagues on other platform tasking Using various internal and external customer driven databases to source information Your skills and experiences: Essential: AutoCAD / Inventor design experience and in addition to this, having the ability to produce detailed manufacturing & assembly drawings An understanding of detailed system and technical engineering drawings including manufacturing drawings with knowledge of projection layouts, scaling & tolerancing. Knowledge of ship system engineering drawings i.e, P&ID’s, diagrammatics and piping isometrics and also ship systems materials and equipment (symbols) Knowledge of maritime warship / commercial systems i.e. fluid based systems, Mechanical systems. Able to perform, as a minimum, basic pressure loss and flow calculations, with a view to sizing pipework in designs Knowledge of Mechanical manufacturing processes Ship experience (build or in-service). Understanding of RN ship / commercial Mechanical / piping systems for various classes of vessel Understanding of military and commercial ship related standards 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. Design Services Team: Design Services are the BAE Systems Maritime ‘in service’ technical support cell located within Portsmouth Naval Base. We employ approx. 180 personnel across all disciplines including Mechanical, Electrical & Combat Systems (ECS), Structures / Outfit (S&O) and HVAC to create modification design packages and reports for installation and integration on legacy warships. Along with our Safety section, and Naval Architects, we are a broad mix of varying engineering & educational backgrounds and experience. 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: 18th September 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. LI-NB1 LI-Hybrid