Technician Geotechnical-2

• Join a leader in mining & metals offering outstanding personal development & global career opportunities.

• Competitive salary and benefits.

• Work in an underground project located near Superior Arizona.

About the Role

We are seeking 2 Geotechnical Technicians to support the Mine Design this junior role you will start with foundational field tasks and gradually take on more complex technical duties as you progress with on-the-job training.

Reporting to the Principal Engineer Underground Geotechnical your initial core responsibilities include:

• Utilize advanced laser scanning technology: to monitor how the mine openings change shape over time providing critical early warnings for ground movement.

• Ground Support QA/QC:Conduct quality audits on rock bolts and surface support. You will performPull Testsusing hydraulic equipment to verify that bolts are anchored to the required tension.

• Instrumentation Installation:Install high-tech monitoring tools (such as extensometers stress cells or slough meters) into the rock mass to track ground movement.

• Data Collection & Monitoring:Regularly read and download data from installed instruments and assist in uploading this information into our stability databases.

• Depth of Damage (DoD) Surveys:Use specialized equipment to measure depth of damage holes to assess the impact of blasting on the surrounding rock.

• Material Sampling:Collect and prepareshotcrete and concrete samples(cylinders/beams) from active headings. You will manage the curing process and coordinate their shipment to the laboratory for strength testing.

• Technical Reporting:Maintain clear organized logs of all tests and samples ensuring the engineering team has accurate data for their daily safety assessments.

About you

• High school diploma or equivalent

• Valid drivers license

• Comfortable with high school level math including basic algebra and geometry and able to preform accurate measurements and calculations additional training will be provided.

• Motivated and handson with an interest in learning practical technical skills

• Comfortable working underground and committed to following safety procedures

• Detailoriented and able to accurately collect measurements and field information

• Interested in technology equipment and understanding how ground support systems work

• Willing to learn new tools software and processes through onthejob training

What we offer

We are committed to providing our employees with a generous benefits package. Be recognized for your contribution your thinking your hard work and go home knowing youve helped the world progress we provide:

• A safety-focused and inclusive working environment

• Advantageous salary package with annual cash incentive awards (STIP) for eligible employees

• Access to top-tier family-friendly health programs including medical prescription drug dental vision life insurance coverage and various voluntary benefits

• Excellent retirement plan including up to 6% defined company contribution; Generous 401k matching program

• Generous Rio Tinto employee share program which allows you to purchase Rio Tinto Company shares

• Comprehensive leave policies which cover all moments that matter in life: PTO (paid time off) paid holidays and paid bereavement leave

• A favorable child-caregiver leave program (Up to 100% salary top-up)

• Discount programs for leisure purposes and access to Virgin Pulse with incentives supporting your wellbeing

• Ongoing Employee Assistance Program (EAP) for you and your family; to help in addressing educational opportunities addiction treatment depression stress domestic issues financial management and legal concerns

• Our team and industry experts are here to support and work with you to explore your learning potential and career goals

Where you will be working

You will be joining Resolution Copper at a pivotal moment in the projects history. With the Resolution Copper Land Exchange now complete the project is advancing its next phase of technical work community engagement and state permitting activities.

Resolution Copper has the potential to supply nearly 25% of total U.S. copper demand and generate several thousand direct and indirect jobs in the Pioneer Mining District of Arizona delivering an economic value of several billion dollars over the life of the mine. The project will rely on block caving a proven underground mining method that uses gravity to extract ore from a deposit located more than 2000 meters below the surface. This technique is the most viable way to safely and efficiently recover the resource.

As development continues Resolution Copper will expand its underground operations conduct extensive drilling and orebody characterization and maintain both the permitting process and ongoing public engagement with Native American tribes local communities and stakeholders.

The Resolution Copper project is vital to securing Americas energy future infrastructure needs and national defense by providing a domestic supply of copper and other critical minerals. Once operational it has the potential to become one of the largest copper mines in the United States contribute approximately $1 billion annually to Arizonas economy and create thousands of local jobs in a region with more than a centurylong mining heritage.

About Rio Tinto

Rio Tinto is a leading global mining and materials company. We operate in 35 countries where we produce iron ore copper aluminium critical minerals and other materials needed for the global energy transition and for people communities and nations to thrive.

We have been mining for 150 years and operate with knowledge built up across generations and continents. Our purpose is finding better ways to provide the materials the world needs striving for innovation and continuous improvement to produce materials with low emissions and to the right environmental social and governance standards. But we cant do it on our own so were focused on creating partnerships to solve problems create win-win situations and meet opportunities.

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 want our people to feel that all voices are heard and that a variety of perspectives are not only welcome but are essential to our success. We treat all our people fairly and with dignity.

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