Principal Scientist - Materials Science Sedgefield | (Minimum 3 days on-site) | £48,000 - £64,000 About the Role: CPI is seeking a Principal Scientist to join their Advanced Materials & Devices team, providing high-level technical expertise in functional coatings, materials science, and sustainable materials development. This is a technically focused, individual contributor role within a large, multidisciplinary team of specialists, where you will act as a recognised subject matter expert - contributing to complex projects, shaping technical direction, and supporting business growth through your expertise. You will play a critical role in strengthening capability within functional coatings and materials, while applying your knowledge across a diverse range of sectors including batteries, healthtech, and sustainable materials. Working alongside engineers, formulation scientists, and materials experts, this is a highly collaborative role with strong visibility across both internal programmes and external partnerships. What You'll Be Responsible For: Technical Expertise & Thought Leadership Act as a subject matter expert in functional coatings and materials, contributing to complex and high-value projects Identify emerging trends and translate them into new technical opportunities and innovations Provide technical guidance and insight to inform project direction and strategic decisions Project Delivery & Cro...