Job Title: Senior Mechanical Engineer

Location: Barrow in Furness - Hybrid

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

Salary: Circa £46,000 dependent on experience

Who we are:

Join BAE Systems and you’ll 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, for all of us.

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.

As a Senior Mechanical Engineer, you will play a pivotal role in the design and development of submarine systems. This includes system-level design, technical responsibility, supplier engagement, and the opportunity to steer design architecture across a major submarine programme.

Core duties:

• Lead design activities of Hydraulic / Mechanical systems, sub-systems and equipment for the next generation Royal Navy submarines
• Undertake functional design activities, modelling and analysis
• Produce design documentation, Verification & Validation evidence and safety justifications
• Support specification qualification and procurement of components, working collaboratively with suppliers
• Engaging with stakeholders across the cross-functional project team
• Driving engineering governance through peer reviews and design reviews

Essential Skills:

• Strong experience in the design of hydraulic/mechanical systems – ideally in complex, safety-critical environments (e.g. maritime, aerospace, defence, nuclear, oil & gas and sub-sea)
• Familiarity with systems and equipment involving; hydraulic power units (HPUs), variable frequency dives (VFDs), control cabinets, pumps, electric motors, hydraulic actuators, hydro-static transmissions and fluid mechanics
• Proven capability in system lifecycle delivery, from concept through to commissioning.
• Demonstrated leadership, either through technical direction, mentoring, or project ownership
• Chartered engineer or working towards professional accreditation

The Platform Mechanical team:

Join a dynamic, multidisciplinary engineering team where your expertise will help drive the delivery of critical mechanical capability at the heart of a high-profile programme. Through close collaboration with suppliers, systems engineers, and key stakeholders, you’ll play a pivotal role in shaping high-integrity technical solutions, supporting team growth, and ensuring projects stay on course—both technically and financially. This is a role that grows with you: whether your passion lies in technical leadership, owning innovative design solutions and guiding others; people leadership, developing talented engineers and managing focused teams; or specialist technical delivery, diving deep into hydraulic and mechanical performance, analysis, and integration. Here, you’ll have the flexibility to shape your impact and help define the future of mechanical engineering excellence. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria.

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.

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: 28th May 2026

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.

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