SLR is a global leader in sustainability solutions, helping clients tackle some of the world's most complex environmental and sustainability challenges. With over 5,000 employees operating across more than 125 countries, we combine global reach with local expertise, delivering innovative and practical solutions through a collaborative, people-first culture. As part of our continued growth, SLR's busy Mine Water team is seeking an experienced Principal Geochemist to join our expanding European Geochemistry team and support a growing portfolio of work, predominantly within the mining sector. This role will provide technical leadership across a diverse range of mining projects, with a particular focus on mine waste and tailings geochemistry, acid rock drainage and metal leaching (ARD/ML), mine water quality, predictive geochemical modelling and mine closure. Acting as one of the team's senior technical practitioners, you will lead complex studies, provide technical oversight and mentor developing geochemists while collaborating closely with multidisciplinary specialists across hydrogeology, hydrology, water treatment, mining, tailings, waste management, environmental assessment and closure disciplines. This is an excellent opportunity for an established geochemist to shape technical approaches, influence project outcomes, strengthen client relationships and contribute to the continued growth, technical development and reputation of SLR's geochemistry practice. The role can be based from any of SLR's UK offices, with flexible, agile and hybrid working options available. Occasional international travel will form part of the role. The Role As a Principal Geochemist, you will provide technical leadership across a broad range of mining projects throughout the mine lifecycle while supporting the development of both clients and colleagues. Key responsibilities will include: Leading the technical delivery of complex geochemistry studies across the mining lifecycle, including Scoping Studies, Pre-Feasibility Studies (PFS), Feasibility Studies (FS), Environmental and Social Impact Assessments (ESIA), operational support and mine closure planning. Providing senior technical direction for mine waste and tailings geochemical characterisation programmes, including sample selection and the design of static, kinetic, leach and mineralogical testing programmes. Leading the interpretation of complex geochemical datasets and undertaking robust assessments of ARD/ML, salinity, constituent mobilisation and long-term water quality risks. Developing practical geochemical management and mitigation strategies for waste rock, tailings, stockpiles, pit walls and other mine materials. Developing and reviewing geochemical source terms and water quality predictions to support mine water management, groundwater studies, water balances, closure planning and permitting requirements. Undertaking and overseeing advanced geochemical modelling using PHREEQC. Providing specialist technical input to mine closure studies, including pit lakes, flooded mine workings, seepage quality assessments, mine water treatment requirements and post-closure monitoring programmes. Integrating geochemistry with mine waste, tailings, hydrogeology, hydrology, mine water and closure engineering studies to deliver practical, risk-based recommendations. Acting as a technical reviewer and quality assurance lead for geochemistry deliverables. Leading technical investigations, field programmes, sampling campaigns and laboratory testing strategies where required. Managing project scopes, programmes, budgets, resources, laboratories and subcontractors. Supporting proposal development, project planning, client engagement and business development initiatives. Building and maintaining strong client relationships and identifying opportunities to expand geochemistry services across existing and new projects. Mentoring and developing Senior, Project and Graduate Geochemists. Contributing to technical standards, methodologies, data management approaches and modelling capabilities across the team. Supporting industry engagement activities, including technical papers, conference presentations and professional guidance documents. Rewards & Benefits We recognise that our people are our greatest asset and are committed to supporting their professional and personal wellbeing through a comprehensive benefits package, including: Competitive salary. Company pension scheme. Private healthcare and wellbeing support. Travel and life insurance. Structured career development and progression opportunities. Regular performance and career development reviews. 25 days annual leave plus flexible bank holidays. Hybrid, agile and flexible working arrangements. Family-friendly policies that support work-life balance. Opportunities to work on internationally significant mining and mine closure projects. Access to industry-leading specialists across a range of environmental, engineering and sustainability disciplines. About You We're looking for an experienced and highly regarded geochemist who combines technical excellence with commercial awareness, leadership skills and a collaborative approach. You will ideally have: A BSc or MSc in Geochemistry, Geology, Environmental Geoscience, Earth Sciences or a related discipline. A relevant PhD, which would be advantageous but is not essential. Considerable professional experience within mining, environmental consultancy or a closely related sector. Extensive experience in mining geochemistry, including mine waste characterisation, ARD/ML assessments and long-term prediction of mine waste behaviour. Advanced understanding of contaminant release mechanisms, constituent transport processes and the geochemical evolution of mine wastes. Experience designing and managing hydrogeochemical sampling and laboratory testing programmes, including static, kinetic, leach and mineralogical testing. Experience acting as a trusted technical advisor to clients and multidisciplinary project teams. Significant experience developing geochemical source terms and predicting mine water quality under both operational and closure scenarios. Demonstrable expertise in advanced geochemical modelling using PHREEQC and/or Geochemist's Workbench. An understanding of how geochemistry integrates with hydrology, hydrogeology, mine water treatment, tailings engineering, mine waste management, mine planning and mine closure. Experience delivering geochemical inputs to multidisciplinary studies, including PFS, FS, ESIA, permitting and closure projects. The ability to independently lead complex technical workstreams and provide oversight on high-profile projects. Excellent technical writing, report preparation and communication skills. Experience mentoring, reviewing and developing junior and mid-level geochemists. Strong commercial awareness with experience contributing to proposals, project planning and client relationship management. Evidence of recognised technical expertise through publications, conference presentations, industry engagement or other professional activities. Experience applying the UK/EU Waste Directive, with knowledge of Hazardous Waste Classification, Groundwater Directive requirements and Environmental Quality Standards considered advantageous. Chartered status with a relevant professional institution, or a clear pathway towards achieving chartership. A full UK driving licence. Above all, you'll be a collaborative and pragmatic professional who enjoys solving complex environmental challenges and delivering technically robust, risk-based recommendations that influence project design and decision-making. Culture & Inclusion At SLR, we are committed to creating an inclusive environment where everyone feels valued, respected and able to thrive. Through our Culture & Inclusion Committees, Global Council and Employee Networks, we foster a workplace that celebrates diversity and encourages different perspectives. We welcome applications from all backgrounds and particularly encourage applications from groups currently under-represented within our industry. We believe that diverse teams create stronger solutions for our clients, colleagues and communities. As a Disability Confident Committed employer, we are committed to providing equitable support throughout the recruitment process. If you require any adjustments at any stage of your application, please let us know. Join Our Team If you're an established geochemist looking for the opportunity to influence major international mining projects, provide technical leadership and help shape the future growth of a highly regarded geochemistry practice, we'd love to hear from you. Apply today and help us make sustainability happen. We’re Making Sustainability Happen. We don’t have all the answers to the complex sustainability challenges faced by humanity today. But we’re working on it. We are a consultancy with 4,500+ employees, working on projects in over 125 countries around the world. When you join SLR, you’ll work alongside some of the world’s leading advisors and technicians on projects of global importance in the environmental space. We know sustainability starts from within. And no matter how good we are today, we can always do better. We continually work on our internal ethics to set the standard for organisations and reflect the advice we give to clients. Don't see the dream job you are looking for? Drop off your contact information and resume and we will reach out to you if we find the perfect fit!

Principal Geochemist.

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