Underground Mine Geologist

Date: Aug 27, 2026

Location: Patagonia, AZ, US, 85624

Company: South32 Group Operations Pty. Ltd.

Discover a Brighter Future 

At South32, we’re meeting the challenge of enabling a sustainable future through our focus on responsibly producing commodities critical for a low-carbon world.

As a collaborative, caring and inclusive company, there’s no better place to make a genuine difference. Together we’re making a positive, global impact that has the potential to change lives.

Whatever career path you choose, we’ll support you every step of the way to learn, grow and succeed. So join us, step towards a brighter future and leave your legacy.

 

ABOUT Hermosa

Hermosa, located approximately 75 miles south-east of Tucson, Arizona, is the only advanced mining project in the United States as of 2023 that could produce two federally designated critical minerals—manganese and zinc—as well as silver and lead. The project has the potential to help power the nation’s clean energy future, strengthen the domestic supply chain of critical minerals, grow the local economy, and improve lives in Santa Cruz County and the surrounding community for generations to come.

 

ACERCA de Hermosa

Hermosa, ubicado a aproximadamente 75 millas al sur este de Tucson, Arizona, es el único proyecto de minería avanzada en los Estados Unidos hasta la fecha que puede producir dos minerales designados como críticos por el gobierno federal: manganeso y zinc, así como también plata y plomo. El proyecto tiene el potencial de ayudar a impulsar el futuro energético limpio del país, reforzar la cadena de suministro nacional de minerales esenciales, hacer crecer la economía local y mejorar la calidad de vida en el condado de Santa Cruz y en las comunidades aledañas para las generaciones venideras.

 

WHAT SOUTH32 OFFERS


•    Annual short-term incentive bonus that recognizes both your individual performance and the overall success of the business.
•    When you choose to contribute more into your retirement savings, South32 will match it up to a certain percentage.

•    South32 provides you with 4 weeks paid time off.
•    12 weeks full-paid parental leave for primary careers and 2 weeks full-paid parental leave for secondary careers

 

ABOUT THE ROLE 


The Underground Mine Geologist supports the Hermosa Project by contributing to the collection, validation, and interpretation of high quality geological data. Responsibilities include, but are not limited to, developing and implementing best practices for underground geology functions; conducting underground mapping, sampling, and material routing; providing comprehensive support for underground drilling activities from design through core logging; and contributing to orebody delineation to inform and optimize stope design. This position is based at the Hermosa Project site near Patagonia, Arizona.


Other key responsibilities include, but aren’t limited to: 

  • Ensure and maintain safe practices in alignment with South32 Hermosa standards and core values.  
  • Drive zero harm workplace through visible felt leadership, stop work authority, and other safety programs in place.
  • Uphold safety and environmental standards and compliance.
  • Support accurate and consistent geological mapping and sampling of active mining areas, as well as uphold and contribute to QA/QC initiatives.
  • Compile mapping and assay information in 3-D software and correlate it with existing models.
  • Support accurate routing of mined material based upon mapping, assaying, and pXRF analyses.
  • Provide comprehensive support for underground drilling activities, including the design of drill fans, checking on underground drill rigs, and detailed logging of diamond drill core
  • Support communication and integration of Geologic data across all Technical Services functions. 
  • Attend all relevant operational meetings to ensure seamless integration of geology within the mining cycle.
  • Contribute to orebody delineation and provide geological guidance to engineering to support and optimize stope design
  • Support training of Geologists.

 

ABOUT YOU 

You will have experience and demonstrate capability in the following: 

  • Bachelor’s degree in Geology or a related field
  • 0 to 3 years of mining experience preferred, but not required
  • Experience with logging diamond drill core preferred
  • Proficient with Microsoft Office Suite programs
  • Experience with Leapfrog, Deswik, Vulcan, and AcQuire software preferred
  • Excellent safety record
  • Ability to work effectively in a team environment
  • Strong interpersonal, written, and verbal communication skills


South32 is committed to building and maintaining an inclusive and diverse workforce that reflects the communities in which we operate.  We provide a recruitment process that is fair, equitable and accessible for all and we encourage candidates from all backgrounds to apply.

 

South32 está comprometido a cimentar y mantener una plantilla de trabajadores diversa e inclusiva que refleje las comunidades en las cuales trabajamos.  Proporcionamos una proceso de contratación que es justo, equitativo y accesible para todos y alentamos la aplicación de candidatos de todas las procedencias.


Nearest Major Market: Nogales