Job Summary ERM is seeking an Environmental Geochemist on a 3-6 month FTC to join our team and support the delivery of complex mining, mine closure and environmental projects across Australia and internationally. This role will have a particular focus on predictive geochemical modelling, geochemical characterisation, mine water chemistry, acid and metalliferous drainage (AMD) and assessment of mine waste materials. The ideal candidate will combine a strong understanding of aqueous and environmental geochemistry with practical experience developing and interpreting geochemical models using software such as PHREEQC, Geochemist’s Workbench (GWB) or equivalent platforms. You will work alongside ERM’s geochemists, hydrogeologists, water specialists, mine closure practitioners and other technical specialists to understand complex geochemical systems and translate modelling outcomes into practical advice for our clients. Why This Role Matters Applying Geochemistry to Some of Mining’s Most Complex Environmental Challenges Understanding how mine wastes, water and geological materials will behave over decades and potentially centuries is fundamental to responsible mine development and closure. Geochemical modelling provides a critical link between laboratory and field observations and predictions of long-term environmental performance. ERM supports mining companies across Australia and internationally to understand and manage these challenges. From predicting mine water quality and assessing AMD risks to designing waste management strategies and informing closure planning, environmental assessments and residual risk evaluations, our geochemistry work helps clients make better decisions throughout the mining lifecycle. In this role, you will apply your geochemical expertise to technically challenging projects and work with multidisciplinary teams to turn complex geochemical processes into defensible predictions and practical management strategies. What Your Impact Is You will help strengthen ERM’s environmental geochemistry and predictive modelling capability while delivering high-quality technical work for major mining and resource projects. You will work closely with specialists across geochemistry, hydrogeology, surface water, mine waste and mine closure to develop robust conceptual and numerical representations of geochemical systems. Your work will help clients understand environmental risks, evaluate management and closure options, and make better-informed decisions about the long-term performance of mining operations and rehabilitated landscapes. Key Responsibilities Develop and apply predictive geochemical models for mining and environmental applications using PHREEQC, Geochemist’s Workbench or equivalent geochemical modelling software. Develop geochemical conceptual models to represent interactions between water, minerals, mine wastes and geological materials. Undertake aqueous speciation, mineral saturation, equilibrium and kinetic reaction modelling. Predict mine water and seepage chemistry associated with waste rock dumps, tailings storage facilities, pits, underground workings and other mine infrastructure. Assess acid and metalliferous drainage (AMD), including acid generation, neutralisation, metal and metalloid mobilisation and attenuation processes. Interpret static and kinetic geochemical testwork, including acid-base accounting, net acid generation testing, elemental and mineralogical data, leach testing and humidity cell or column test results. Use laboratory, field and monitoring data to calibrate, validate and refine predictive geochemical models. Integrate geochemical predictions with water balance, hydrogeological and surface water assessments where required. Support geochemical characterisation programs and development of sampling and analytical strategies for waste rock, tailings, soils, sediments and water. Undertake geochemical assessments to support mine planning, waste management, environmental impact assessment, operational management, mine closure planning and rehabilitation. Evaluate uncertainty and sensitivity within geochemical predictions and clearly communicate limitations and assumptions. Prepare high-quality technical reports, proposals and presentations that translate complex geochemical processes and modelling results into clear conclusions and practical recommendations. Work collaboratively with ERM technical specialists and project teams across Australia and internationally. Support the continued development of ERM’s environmental geochemistry and predictive modelling capability. Requirements: Bachelor’s or postgraduate degree in Environmental Geochemistry, Environmental Science, Chemistry, Hydrogeology or a related discipline. Minimum 5+ years of relevant consulting, mining, research or industry experience in environmental or mining geochemistry. Demonstrated understanding of aqueous geochemistry and water-rock interactions, including mineral dissolution and precipitation, speciation, sorption, redox processes and geochemical controls on water quality. Practical experience undertaking predictive geochemical modelling, ideally using PHREEQC, Geochemist’s Workbench or comparable modelling software. Experience interpreting geochemical characterisation datasets and laboratory testwork. Knowledge of AMD processes and the geochemical behaviour of mine wastes such as waste rock and tailings. An understanding of mine water quality, mine waste management and/or mine closure applications would be highly regarded. Experience integrating geochemical models with hydrological, hydrogeological or water balance information would be advantageous. Experience with data analysis, scripting or scientific computing tools such as Python or R would be advantageous. Strong analytical skills and the ability to critically evaluate model assumptions, uncertainty and limitations. Excellent technical writing and communication skills, with the ability to communicate complex geochemical concepts clearly to both technical and non-technical audiences. Previous environmental consulting or mining industry experience would be highly regarded. Ability to work effectively within multidisciplinary and geographically dispersed project teams. Willingness to undertake occasional travel and site-based work. APAC Ready to Lead Way At ERM, your work creates impact that matters, helping global organisations tackle the most pressing sustainability challenges while shaping a better future for communities and the environment. Our vision is to empower you to grow, lead, and innovate alongside world-class clients on transformative projects. You will have the opportunity to work with experienced geochemists, hydrogeologists, water specialists and mine closure practitioners on challenging projects across Australia and globally, while continuing to develop your technical expertise in environmental geochemistry and predictive modelling. We prioritise wellbeing, continuous learning, and an inclusive culture where collaboration, expertise, and purpose drive meaningful impact. At ERM, diverse perspectives are celebrated, and innovation thrives. If you are ready to use your geochemical expertise to solve complex environmental challenges and build a career that creates lasting change, your journey starts here. You can apply for this role through ERM Careers or through the internal careers portal if you are a current employee. Discover Life at ERM Curious about our culture and what makes ERM a great place to grow your career? Explore these resources to learn more about our people, values, and the impact we create: Talent Brochure: TM - Candidate brochure Life at ERM: Life at ERM At ERM, sustainability is our business. We are the world’s largest advisory firm focused solely on sustainability, offering unparalleled expertise across business and finance. ERM partners with clients to operationalize sustainability at pace and scale, through our unique combination of strategic transformation and technical delivery capabilities. Our diverse global team of experts works with the world’s leading organizations to help them set clear sustainability targets, measure progress and operationalize strategy through deep implementation and business transformation. With more than 50 years of experience, our ability to integrate sustainability solutions and our depth and breadth of technical knowledge are why organizations choose to partner with us as their trusted advisor. Every one of us firmly believes in the potential to create value for our clients through an integrated approach to sustainability (because we have personally seen it and professionally achieved it). Our team members are passionate about client service. We work closely with our clients to help them operationalize their sustainability goals and meet their environmental, health and safety objectives while advancing ERM’s purpose through delivering tangible progress in what the United Nations coined The Decade of Action. Organizing our people across globally integrated communities of technical and strategic talent positions ERM to be a “boots to boardroom” leader in bringing that value creation to our clients, partners, and the world. We recruit exceptional professionals with a personal and professional passion for sustainability and nurture them to even greater success as specialists. We prepare our consultants to bring integrated, innovative and sustainable solutions to our clients and provide opportunities for ongoing development across a variety of subject areas related to technical, business, and personal growth. At ERM, effort pays off and becomes career defining work that leaves a positive imprint on our planet. ERM Homepage Explore All Open Roles Explore Early Careers Roles Explore Experienced Professional Roles Explore Partnership Roles Quick guides for accessing and managing your ERM Candidate Home account. Create a New Candidate Account Reset Your Candidate Home Password Processing Notice

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