Principal Design Engineer – Mechanical Location: Surrey Salary: Up to £70K Join a truly exceptional team. This is a rare opportunity to step into a high-profile leadership role with a multi-award-winning UK business that designs and manufactures world-class scientific instruments. Known for technical excellence, innovation, and a people-first culture, this company offers more than just a job – it offers real purpose, cutting-edge engineering, and a genuinely supportive environment. As Principal Design Engineer, you’ll lead a talented design team in the development of highly specialised electro-mechanical products used across the energy and materials testing industries – from traditional fuels to next-gen renewables. You’ll take concepts from first sketch through to global production, all while working in a culture that encourages creativity, collaboration, and continuous improvement. Why this role stands out: Work on complex, high-precision instruments that are used and respected worldwide Be part of a stable, growing company with multiple Queen’s Awards and ISO accreditations Lead a tight-knit, high-calibre mechanical design team who take real pride in their work Collaborate closely across R&D, production, and supply chain to bring ideas to life Have genuine influence in product strategy, design decisions, and team development Enjoy a flat, friendly structure where innovation and initiative are truly valued What you’ll bring: A degree in Engineering and 5 years of mechanical design experience Proficiency in SolidWorks and a solid understanding of modern manufacturing processes – CNC, sheet metal, casting, 3D printing, coatings, etc. A hands-on, problem-solving approach with a passion for engineering The ability to lead, mentor, and inspire other engineers A drive to continually raise the bar in design, quality, and performance If you’re looking for a role where your ideas will be heard, your work will have global impact, and your career will thrive in a forward-thinking environment – this is it. Location: Surrey (easily commutable from West London, Guildford, Reading, Woking, etc.)