Principal Mechanical Design Engineer – Aerospace & Defence | Up to £55,000 | Surrey
I'm currently partnered with a leading innovator in electromechanical actuation systems who are looking to bring a Principal Mechanical Design Engineer into their R&D and Engineering team. This is a fantastic opportunity for an experienced Mechanical Engineer with a strong background in actuator or electromechanical system design to play a pivotal role in high-impact technical projects across the Aerospace, Defence, and Oil & Gas sectors.
Location: Surrey
Salary: Up to £55,000
Job Type: Full-Time, Permanent
Work Model: On-site
Flexibility: Early Friday finishes & flexitime options
What You’ll Be Doing:
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Leading and managing strategic product development projects across R&D and engineering
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Providing technical direction and mentoring for junior team members
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Coordinating internal and external stakeholders to deliver on technical objectives
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Approving and overseeing designs, drawings, and documentation using 3D CAD (preferably PTC Creo)
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Taking part in design reviews, qualification testing, and liaising with certification authorities
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Driving continuous improvement across tools, processes, and technical documentation
What We’re Looking For:
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Extensive experience in mechanical design of electromechanical assemblies, actuators, or motion systems
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Strong understanding of engineering principles including tolerance, materials, and mechanical/electrical system integration
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Proficient in 3D CAD (PTC Creo experience highly desirable)
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Skilled in reading and creating technical drawings (BS8888, GD&T)
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Familiarity with aerospace product lifecycle, from concept through to certification and qualification
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Ability to work autonomously while collaborating within multi-disciplinary teams
Desirable Extras:
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Background in aerospace or defence engineering
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Understanding of DO-160 and similar aerospace standards
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Knowledge of gear and actuator design
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Hands-on experience with certification and regulatory compliance processes
Why This Role?
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24 days holiday + bank holidays
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Flexitime & early Friday finish (1PM)
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Health care cash plan & employee assistance programme
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Enhanced pension & life assurance
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On-site parking & casual dress code
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A highly technical, supportive environment where innovation thrives
If you’re a senior or principal-level Mechanical Design Engineer looking to apply your expertise in a forward-thinking and high-performance setting, I’d love to hear from you. Apply now or get in touch directly to find out more