About the Role A leading defence organisation is seeking a Principal Mechanical Design Engineer to support the development of advanced missile systems. This is a hands-on design role within a multi-disciplinary team, ideal for someone with strong CAD skills and experience in defence, aerospace, or similar industries. Key Responsibilities Lead mechanical design and proving activities for assemblies and components Resolve manufacturing issues and support testing and trials Collaborate with suppliers and internal teams on technical queries Participate in design reviews and project planning Essential Skills Proficient in Creo 3D CAD Strong knowledge of: Manufacturing processes & tolerance studies Structural design & material selection FMEA, DfM/A, and environmental sealing Defence standards & product lifecycle management Excellent communication and teamwork skills Preferred Background Defence or aerospace industry experience preferred Automotive or similar sectors considered with relevant skillsetApply now to be part of a cutting-edge engineering team shaping the future of defence technology. Carbon60, Lorien & SRG - The Impellam Group STEM Portfolio are acting as an Employment Business in relation to this vacancy