SLR is a global leader in sustainability solutions, working with clients to help make sustainability happen, within a collaborative, people-first culture. Due to continued growth, we are seeking an experienced Principal Metallurgist to join our established Metallurgy and Mineral Processing team, delivering high-profile metallurgical testing and advisory projects. Based in our Truro Laboratory, the leading Mineral Processing Testing Facility in Europe the role will focus primarily on leading complex metallurgical test programmes within a laboratory environment, with additional exposure to client advisory, innovation and strategic service development, as well as broader work spanning mining, infrastructure and industrial sectors. The Role You’ll lead the delivery of metallurgical testing programmes from scoping through to final reporting, working closely with clients and multidisciplinary teams. The role includes: • Project and technical leadership of complex metallurgical testwork programmes • Client management, technical advisory and proposal support • Mentoring and coaching junior metallurgists and laboratory technicians • Oversight of data analysis, interpretation and technical reporting • Desk-based technical work alongside collaboration with laboratory teams You’ll collaborate with colleagues across Environmental and Earth Sciences and Global Advisory on complex and impactful projects, with opportunities for international exposure. Rewards & Benefits SLR’s ‘One Team’ culture is at the heart of our business, providing a collaborative and supportive environment for professional development. Through a structured career framework, regular performance reviews, and full support toward chartership, professional qualifications and licenses, we offer outstanding opportunities for long term career progression. Our flexible benefits & reward package includes: • Competitive salary with discretionary bonus • Company pension • Private medical insurance • Life, income, and travel insurance • Salary sacrifice car lease and cycle to work schemes We believe sustainable careers need balance, that’s why we offer: • Flexible, hybrid and agile working • 25 days’ annual leave plus flexible public holidays • Buy or sell leave options • Core working hours • Cross border remote working and sabbatical opportunities Family life and wellbeing matter at SLR: We provide enhanced maternity, paternity and adoption leave, access to an Employee Assistance Programme, and specialist support for mental health, stress, and menopause - supporting our people both professionally and personally. About You You’ll bring: • Extensive experience delivering mineral processing and metallurgical testing programmes, including laboratory and pilot-scale work • A postgraduate degree in Minerals Engineering, Metallurgy or a related field • Project management and stakeholder engagement experience • Strong technical expertise across flotation, gravity separation, magnetic separation, leaching and comminution • Experience with metallurgical software and data analysis tools (desirable) • Strong analytical, technical reporting and problem-solving skills • Proven leadership and mentoring capabilities Membership of a relevant professional body (e.g. IOM3) is desirable. Culture & Inclusion Inclusion is fundamental to who we are. We are committed to equal opportunities and foster a workplace where everyone can thrive, supported by active Culture & Inclusion Committees and Employee Networks. We welcome applications from candidates of all backgrounds and are a Disability Confident Committed employer. If you require any adjustments during the recruitment process, please let us know and we will be happy to support you. If this role feels like a great fit for your experience and ambitions, we’d love to hear from you.