BAE Systems

Senior Mechanical Engineer

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Job Title\: Senior Mechanical Engineer

Location\: Portsmouth Naval Base - working a hybrid pattern

Referral Scheme\: £1000

Grade\: GG10

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.

Role description\:

As a Senior Mechanical Engineer, you will deliver key WTA (Warship Technical Authority) service elements across platform systems, including design change, technical assurance, material state and obsolescence management, specialist engineering support, and future support or transformation planning.

Core duties\:

  • Providing mechanical engineering support across diverse platform systems, equipment, and critical marine services
  • Delivering engineering input to multiple projects, including CSM platforms and international naval programmes
  • Working with internal teams and external stakeholders to clarify and manage platform system requirements
  • Maintaining systems design integrity across varied engineering contexts, classes, and programme deployments
  • Supporting investigations, impact assessments and integration analyses to enable evidence-based technical decisions
  • Ensuring safe, efficient implementation of design changes while maintaining configuration control and system integration

Essential skills\:

  • You hold broad knowledge of complex platform systems across UK and international markets
  • You will have a good understanding of applicable industry standards and the ability to operate effectively within CSM, LCM, and other governance and assurance frameworks
  • You will have the ability to apply mechanical engineering knowledge quickly and confidently to a wide range of platform and projects across multiple platform systems and sub-systems and equipment’s
  • You will be an experienced professional engineer at CEng level or equivalent level of capability
  • You provide effective technical guidance and influence, supporting engineers with technical oversight, clarity of direction, and opportunities for professional development

The Asset Management team\:

This role sits within the Warship Technical Authority (WTA) Service Hub, part of the Asset Management team within Warship Support, delivering whole ship, systems and equipment engineering expertise and change management to ensure safe, assured and high-quality support across Warship Support programmes. The Asset Management Team already supports QEC, T45, T23, HUNT, OPV and intentional navies.

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\: 14th July 2026