Engineer II

Mine Hydrogeologist We are looking for a Mine Hydrogeologist to join the Mine Technical Services team of our Boron operation in California. The successful candidate will maintain the site dewatering plan in support of pit slope stability and mine production plans. This role offers an opportunity to contribute to the organization's safety and profitability while developing as a technical expert and leader. California based roles have an expected annual salary range of $92,240 - $126,830. About the Role Identification of targets for depressurization and/or monitoring to support pit slope stability in a soft rock environment with extremely low hydraulic conductivity. Prepare hydrogeology drill plans and budgets. Supervise drillers and subcontractors, as well as hydro consultants. Collect and interpret surface and groundwater data. Perform pore pressure modeling using appropriate hydrogeological software. Prepare reports documenting progress toward dewatering targets. Design and maintain surface runoff catchment network at the mine. Communicate with geotechnical engineers and mine planners regarding surface and groundwater issues across the mine. Share and seek out knowledge and best practices through collaborative forums, site visits, mentoring, and training. Perform other duties, including geotechnical data collection and on-call duty during weekends and evenings. About You Minimum of a BS degree in Hydrogeology or a related field. In-depth knowledge of groundwater flow and its role in open pit slope stability. At least three years of relevant experience in an open pit hydrogeology role. Familiarity with pore pressure modeling software packages. Ability to communicate groundwater monitoring data and pore pressure evaluation results to various groups, including non-technical audiences. Familiarity with rock and soil mechanics and their roles in pore pressure modeling. What We Offer A safety-focused and inclusive working environment. Competitive salary package with annual cash incentive awards (STIP) for eligible employees. Access to family-friendly health programs including medical, prescription drug, dental, vision, life insurance coverage, and voluntary benefits. Retirement plan with up to 6% defined company contribution and generous 401(k) matching program. Rio Tinto employee share program. Comprehensive leave policies covering paid time off, paid holidays, and bereavement leave. Child-caregiver leave program up to 100% salary top-up. Discount programs and access to Virgin Pulse with wellness incentives. Employee Assistance Program (EAP) for educational, addiction, mental health, and financial support. Career development support from industry experts. Where you will be working This role is located in Boron, CA. Rio Tinto Borates is a global leader in industrial mineral supply and science. Respect and Inclusion Rio Tinto is committed to equal employment opportunity. All qualified applicants will be considered without regard to race, color, sex, age, religion, national origin, disability, or any other characteristic protected by federal, state, or local law. We are committed to an inclusive environment where people feel safe, respected, and valued. We treat all our people fairly, with dignity, and invite all voices to be heard. Rio Tinto participates in E-Verify to confirm work authorization. Please visit for more information. #J-18808-Ljbffr Rio Tinto