Location: Glasgow, On-site Employment Type: Full-time, Permanent We are seeking an experienced Senior Mechanical Design Engineer to join our clients multidisciplinary engineering team. This is a hands-on, technically influential role working across a diverse portfolio of innovative products in sectors such as optical systems, imaging, industrial instrumentation and electro‑mechanical technologies. You’ll work across the full product development lifecycle — from concept and detailed design through to prototyping, verification and manufacture — and play a key role in shaping mechanical design direction across multiple projects. The Role This position suits a rounded, versatile mechanical engineer with strong practical design capability and broad manufacturing knowledge. Projects vary significantly, so the ideal candidate will be comfortable switching between technologies, industries and engineering challenges. A particularly important area is plastic product design and injection moulding, which is one of the most common and technically demanding manufacturing processes used across their projects. Key Responsibilities * Lead mechanical design projects from concept through to manufacture. * Develop mechanical architectures, detailed designs, assemblies and manufacturing drawings using CAD. * Act as a mechanical design authority, providing technical leadership across projects. * Design products with strong DFM/DFA principles, materials knowledge and manufacturing insight. * Collaborate closely with electronics, optics, software and other engineering disciplines. * Support prototyping, testing, design reviews and iterative development. * Provide technical input on manufacturing approaches and liaise with external suppliers. * Mentor junior and mid-level engineers. * Contribute to project planning, estimating and technical problem-solving. Experience Required * Strong experience in mechanical design and product development. * Excellent hands-on CAD capability (SolidWorks, Creo, Inventor, NX or similar). * Strong understanding of manufacturing processes and Design for Manufacture. * Practical experience with plastic component design and injection moulding is highly desirable. * Experience across a range of manufacturing technologies: * Injection/rotational moulding and overmoulding * Vacuum casting / soft tooling * 3D printing * Casting, extrusion and metal forming * Machining * Strong understanding of materials selection, tooling and manufacturing considerations. * Comfortable working across multiple projects and multidisciplinary teams. * Ability to provide technical leadership and mentor other engineers. * Experience with FEA/CFD, precision engineering, medical devices, optical systems or instrumentation is advantageous. Why Apply? This is an opportunity to join a highly skilled company where no two projects are the same. You’ll work on innovative products, influence mechanical design from concept through to manufacture and gain exposure to a wide range of technologies — all while playing a key technical role within a collaborative engineering team. Please note that sponsorship is not available with this role, therefore, applicants must have the right to live and work in the UK