Senior Mechanical Engineer

About BAE Systems

Join BAE Systems and be part of something bigger. As a valued member of our global colleague network, you’ll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You’ll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow, shaping a safer future.

From the depths of the ocean to the far reaches of space, there’s no limit to where a career at BAE Systems could take you.

Role Description: Senior Mechanical Engineer

As a Senior Mechanical Engineer, you will deliver key Warship Technical Authority (WTA) service elements across platform systems. This includes managing design change, technical assurance, material state and obsolescence, 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 and efficient implementation of design changes while maintaining configuration control and system integration.

Essential Skills and Experience:

• Broad knowledge of complex platform systems across UK and international markets.
• Good understanding of applicable industry standards and the ability to operate effectively within CSM, LCM, and other governance and assurance frameworks.
• Ability to apply mechanical engineering knowledge quickly and confidently to a wide range of platform and project requirements across multiple platform systems, sub-systems, and equipment.
• Experienced professional engineer at Chartered Engineer (CEng) level or equivalent capability.
• Ability to 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. The team delivers 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 currently supports QEC, T45, T23, HUNT, OPV, and international navies.

Working Arrangements and Benefits

We offer a range of hybrid and flexible working arrangements. Please speak to your recruiter about the options for this particular role. At BAE Systems, you’ll build a career with purpose and limitless possibilities, with lifelong learning and meaningful work. You’ll be empowered to be your best, recognised for your contribution, and enjoy rewards tailored to your needs, with support for your financial and personal wellbeing, as well as a balanced lifestyle.

Inclusivity and Security

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. Please be aware that many roles at BAE Systems are subject to security and export control restrictions. Factors such as your nationality, previous nationalities held, and place of birth can impact eligibility. All applicants must achieve Baseline Personnel Security Standard. Many roles require higher levels of National Security Vetting, typically requiring 5 to 10 years of continuous residency in the UK.

Location

Portsmouth Naval Base – working a hybrid pattern.

Closing Date

14th July 2026. We reserve the right to close this vacancy early if we receive sufficient applications.