Senior/Principal Platform Systems Mechanical Engineer

BAE Systems; Millom; On-site; GBP 125,000 - 150,000; Full time

Job summary

A leading defense contractor in the UK seeks a Senior/Principal Platform Systems Mechanical Engineer for a full-time on-site role in Barrow-in-Furness. You will develop engineering designs, specify prototype requirements, and mentor junior engineers. The ideal candidate will hold a degree in Engineering and be proficient in CAD and MS Office. This role offers competitive benefits and opportunities for career growth.

Benefits

Competitive pension scheme

Employee share plans

Flexible discounted health benefits

Private health plans

Shopping discounts

Annual incentive eligibility

Qualifications

• Educated to degree level in Engineering, Mechanical or Science subjects.
• Ability to design documentation and present to customers.
• Ability to solve complex engineering calculations.
• Proficient in CAD, MS Office and comfortable with IT applications.

Responsibilities

• Develop design evidence to justify safe, effective design.
• Specify and assist in building prototypes suitable for testing.
• Provide corrective actions on assigned defects.
• Ensure commitments are agreed, reviewed, and met.
• Mentor junior engineers on technical matters.
• Present technical information effectively.

Skills

Engineering degree

Design documentation

Complex engineering calculations

Proficient in CAD

Proficient in MS Office

Education

Degree in Engineering, Mechanical or Science subjects

Tools

CAD software

MS Office

Job description

Job Title

Senior/Principal Platform Systems Mechanical Engineer

Location

Barrow-in-Furness. This position will require a full-time presence on-site

Salary

Competitive

What you’ll be doing

• Developing the package of design evidence required to justify a safe, effective design and generate customer confidence in the design solution
• Specifying and assisting in the build of prototypes, products and systems suitable for testing
• Providing timely corrective actions on all assigned defects and issues
• Ensuring that commitments are agreed, reviewed and met
• Mentoring junior engineers regarding technical matters
• Making presentations effectively to technical and management audiences and within this, be able to identify and keep abreast of novel technical concepts and markets
• Author/co-author technical reports, papers, articles, patents and presentations as required

Your skills and experiences

• Educated to degree level in Engineering, Mechanical or Science subjects
• Be able to design documentation with the ability to present these to customers and wider groups
• Have the ability to solve complex engineering calculations
• Be proficient in CAD, MS Office and be comfortable with other IT applications

Benefits

As well as a competitive pension scheme, BAE Systems also offers employee 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.

The Mechanical Platform Systems team

Being part of a team, you will have a great opportunity to be involved in the planning and reactive support to ensure that the engineering aspects of testing and commissioning activities are undertaken in a safe and appropriate way whilst ensuring design intent are maintained. It’s a fantastic opportunity to be a part of some of our most complex projects to date and to have great opportunity career development. We offer relocation support across all Submarine roles, subject to meeting eligibility criteria

Why BAE Systems?

This is a place where you’ll be able to make a real difference. You’ll be part of an inclusive culture that values diversity of thought, rewards integrity, and merit, and where you’ll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition (for example dyslexia, autism, an anxiety disorder etc.) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments.

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

7th November 2025

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.