Overview
Job title: Principal Mechanical Engineer
Location: Portsmouth Naval Base – hybrid and flexible working arrangements available. Please speak to your recruiter about options for this role.
Salary: Up to £60,000 (dependent on skills and experience)
What you’ll be doing
* Lead and conduct early lifecycle engineering activities, including technical investigations, root cause analysis and feasibility studies. Apply engineering theory/technical knowledge to support findings and recommendations
* Define equipment/system technical requirements and acceptance routes. Apply and manage requirements to drive the development of design solutions for marine mechanical equipment and systems
* Undertake design substantiation via calculation for marine mechanical systems and equipment. This shall include mechanical simulation/analysis in the areas of structures, fluids and heat transfer, incorporating appropriate optimisation and verification/validation (acceptance) routines
* Manage technical risk, safety, requirements compliance and design maturity to align with design review gate requirements. Present to engineering design review panels
* Produce design/analysis/technical reports, system/equipment specifications, scopes of work and undertake assessment of supplier responses
* Liaise with MOD establishments, test facilities, sub-contractors, suppliers and customers as required to satisfy the needs of a project
Your skills and experiences
* Be qualified to degree level, or equivalent, in mechanical engineering or similar STEM subject
* Ideally professionally registered (CEng) through a relevant professional engineering institution such as the IET, IMechE, IMarEST etc or defined plan to get there. Proactive continuation of professional development
* Have experience in application of marine/mechanical engineering in complex industrial/military applications
* Competent in assessing mechanical solutions from first principles in support of recognised toolsets
* Awareness of project management principles with an ability to consider time, scheduling, cost, and quality factors
* Have an awareness of Systems Engineering and the benefits it brings to complex engineering projects
* Experienced in applying defence and marine standards, including DefStan, classification society rules, ISO, and relevant regulatory frameworks (MCA, IMO)
Benefits
As well as a competitive pension scheme, BAE Systems offers 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.
Additional information
Please note: This role may be subject to security and export control restrictions; Baseline Personnel Security Standard is required. Higher levels of National Security Vetting may apply depending on the role.
Closing Date: 11th September 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.
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