BAE Systems

Mechanical Design Engineer – Mechanical Systems

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Job Title\: Mechanical Design Engineer – Mechanical Systems

Location\: Portsmouth Naval Base - Hybrid

We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role

Referral Bonus\: £1,000

Grade\: GG09

You’re expected to have completed 12 months in role prior to applying for an advertised vacancy and you should also discuss the internal opportunity with your line manager to ensure sustained business continuity and to further support your career development.

We know there may be exceptional individual circumstances that impact this, in the first instance please discuss this with your line manager.

If you don’t feel you can talk to your line manager, you can contact your HRBP.

PLEASE NOTE\: Should you be invited for interview; you acknowledge that the Recruitment team will contact you and your line manager regarding your application for this opportunity.

Job Description\:

In this role, you will undertake a defined range of detail design activities in line with all relevant processes and quality requirements, supplying advice and support to operations and other functions. This will be achieved by ensuring defined objectives are achieved whilst continually maintaining quality and service requirement.

Core duties\:

  • You will conduct on board ship trials and surveys and communicating with other departments, Design Services disciplines, customers and suppliers
  • You will carry out technical investigations into operational problems or developments, develop, and prepare solutions, individually or as a member of a team
  • You will support the development of best practice to increase the capability, performance of tools and processes
  • You will produce technical drawing guidance packages, detail parts lists and inventories through AutoCAD / Inventor design
  • You will 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
  • You will use various internal and external customer driven databases to source information

Essential Skills\:

  • You will have AutoCAD / Inventor (i.e. 2D/3D, AutoDesk, Foran) design experience, showcasing this through producing detailed manufacturing & assembly drawings
  • You will understand detailed system and technical engineering drawings including manufacturing drawings with knowledge of projection layouts, scaling & tolerancing. This will include knowledge of ship system engineering drawings i.e, P&ID’s, diagrammatics and piping isometrics and also ship systems materials and equipment (symbols)
  • You will have knowledge of maritime warship / commercial systems i.e. fluid based systems, Mechanical systems. Able to perform, at least, basic pressure loss and flow calculations, with a view to sizing pipework in designs
  • You will be familiar with Mechanical manufacturing processes
  • You will have an understanding of Mechanical ship systems (build or in service), including experience in RN surface ship standards and governance

The 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?

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.

We welcome applications from all suitably qualified people, who are BAE Systems employees and have been in their current role for 12 months or longer.

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\: 15th July 2026