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Senior Mechanical Design Engineer

Escape Recruitment Services
Rosyth · posted 17 August 2026
Location
Rosyth, Scotland
Category
Engineering

Principal / Senior Mechanical Design Engineer

Could you be trusted to give the final technical approval on a complex mechanical design?

We’re recruiting a Principal Mechanical Design Engineer to act as a technical authority and design-sign-off engineer within an experienced mechanical engineering team.

You’ll review and approve engineering work, challenge weak assumptions and take responsibility for deciding whether designs are safe, properly substantiated and ready for release.

This isn’t primarily a CAD position. It requires strong mechanical fundamentals, credible calculation skills and the confidence to make and defend important design decisions.

The role

  • Act as a technical authority for mechanical design.
  • Review, challenge and approve designs produced by other engineers.
  • Take responsibility for design sign-off and technical approval.
  • Complete and review stress, bending, shear, fatigue and mechanical-integrity calculations.
  • Lead design reviews and make product-safety decisions.
  • Support new products from concept through manufacture, testing and release.
  • Mentor engineers and help strengthen engineering standards.

About you

You’ll have substantial experience designing complex mechanical products, machinery or equipment.

You should be able to demonstrate:

  • Formal responsibility for checking, approving or signing off designs.
  • Strong first-principles calculations and design substantiation.
  • The ability to identify weak assumptions or unacceptable technical risks.
  • Sound judgement when making safety and performance-related decisions.
  • Experience taking designs through manufacture and testing.
  • The credibility to provide technical direction to other engineers.

Experience involving hydraulics, actuation, rotating equipment, pressure equipment, heavy machinery or other safety-critical products would be particularly relevant.

Please note: Our client is not a sponsoring company. We will therefore only progress applications from candidates who already have unrestricted and non-time-restricted eligibility to work in the UK.

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