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Core Driller

Mariana Minerals· Plant Operations
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Moab, UTFull-timePosted 2w ago

About the role

Core Driller operates diamond core drill rigs at an open-pit copper mine, focusing on safe, accurate drilling, high-quality core recovery, equipment care, and adherence to health, safety, and environmental standards. Open to strong drillers from RC, air rotary or blast hole backgrounds; mentoring a Driller Assistant is preferred.

Responsibilities

  • Safely operate a diamond core drill rig in line with site procedures, manufacturer specs and MSHA requirements
  • Collar holes accurately and hold the right angles, depths and alignment per the drill plan
  • Do thorough pre-start inspections, routine servicing and basic troubleshooting to keep downtime low
  • Monitor and adjust drilling parameters such as fluid pressure, rotation speed, weight on bit and penetration rate
  • Make sure core is recovered, measured, labeled and boxed correctly, with good contamination control
  • Keep accurate drill logs, footage drilled and daily production reports
  • Recognize changes in ground conditions and flag them to the geologist and supervisors
  • Lead and mentor the Driller Assistant and keep the crew working safely
  • Keep the drill pad and equipment area clean and organized
  • Handle equipment breakdowns and emergencies with a calm, safety-first approach

Qualifications

  • 2+ years of drilling experience, ideally as a diamond core driller
  • RC, air rotary or blast hole drillers are also encouraged to apply
  • Strong mechanical aptitude and a solid understanding of drilling techniques and equipment
  • Experience training or leading drill helpers is a strong plus
  • Real commitment to safety
  • Valid driver's license; CDL is a plus

Skills

Required:drilling
Nice to have:leadership / mentoring

Benefits

  • Housing & relocation assistance options are available.
Last updated Oct 7, 2026. Interested? Apply on the company site.

About Mariana Minerals

We to the Future of Minerals, verify the mineral supply chain.

Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying the minerals critical to modern energy, AI, and defense technologies.

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