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Principal Mechanical Engineer

Job Posted: 3 days ago

Salary: £ 60,000 - 75,000 / Annum
Job Type: Permanent
Location: Addlestone, Surrey

Expire in: 24 days

Job Description

Principal Mechanical Engineer

Salary: Up to £75,000 per annum
Location: Near Addlestone, Surrey
Hours: 37.5 hours per week
Type: Permanent

Are you a recognised Mechanical Engineering expert looking for a role where your technical decisions genuinely shape projects, products, and business performance?

We’re supporting a highly innovative engineering business in the defence sector in their search for a Principal Mechanical Engineer (Mechanical SME) to act as the organisation’s go-to Subject Matter Expert across all mechanical engineering matters.

This is a high-impact position focused on technical excellence, governance, problem-solving, and innovation rather than people management—ideal for someone who wants to remain hands-on technically while influencing engineering strategy across multiple programmes.

What’s in it for you?

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    Salary up to £75,000 depending on experience, Paid overtime or time off in lieu

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    Flexible working hours with core hours in place, Competitive employer pension contribution, Private medical care, Holiday closedown over Christmas

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    Ongoing training and development, Salary sacrifice schemes, Company laptop / mobile / home office equipment

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    Relocation package available for the right candidate

Security / Eligibility Requirements – Please Read Before Applying

Due to the nature of the work and security clearance requirements, applicants must meet the following criteria:

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    Must hold a British passport

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    No dual nationality due to security clearance restrictions

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    Ideally British-born, although applications may be considered on a case-by-case basis

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    Must be eligible to obtain high-level UK Security Clearance / DV clearance

Principal Mechanical Engineer Role

As the Mechanical Engineering Subject Matter Expert, you will:

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    Act as the recognised SME for all mechanical engineering matters across the organisation

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    Provide high-level technical guidance across multiple projects and programmes

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    Lead complex problem-solving and root cause analysis for critical engineering issues

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    Review and approve mechanical designs, calculations, and technical documentation

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    Ensure solutions are robust, manufacturable, and aligned with operational requirements

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    Support design reviews, risk assessments, and engineering assurance activities

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    Act as the escalation point for high-risk or technically complex decisions

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    Complete mechanical design activities from concept through to manufacture

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    Support bids, proposals, and project planning with expert technical input

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    Work closely with electronics, production, and test teams to deliver integrated engineering solutions

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    Identify technical risks and opportunities early and recommend mitigation strategies

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    Mentor and coach engineers, apprentices, and junior team members

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    Drive innovation in mechanical design, engineering methods, and product improvement

What We’re Looking For

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    Extensive experience in Mechanical Engineering within defence, engineering, or manufacturing environments

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    Proven track record of solving complex engineering challenges

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    Experience across the full product lifecycle from concept to manufacture

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    Deep understanding of mechanical design, analysis, and materials

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    Strong understanding of engineering standards, compliance, and safety requirements

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    Ability to influence and guide teams without direct line management authority

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    Excellent analytical and problem-solving skills

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    Degree in Mechanical Engineering or related discipline (or equivalent experience)

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    Chartered Engineer status, or working towards, would be advantageous

This is an excellent opportunity for a senior-level engineer to join a growing and innovative business where your expertise will have a direct impact across multiple departments and high-profile engineering programmes.

To Apply, press the apply button and one of the team will be in touch.

INDA

Before You Apply

Do not include the following in your job application, CV, or cover letter:

Bank details.
National Insurance number.
Date of birth.

You should not be asked for payment or irrelevant information. If you have concerns about a job advert or employer, seek guidance on how to proceed.

Looking for your next career move? Join a top company hiring Principal Mechanical Engineer job near me in Addlestone, Surrey! This is your chance to work on exciting projects, grow professionally, and enjoy a rewarding career with competitive pay and excellent benefits. Whether you're an experienced professional or looking to take the next step, this role offers the perfect opportunity to enhance your skills and make an impact. Don’t miss out—apply today via Vita CV and take your career to the next level!