Core Driller

The role

The Core Driller operates diamond core drill rigs at an open-pit copper mine for mineral exploration and resource definition. The role focuses on safe drilling, high-quality core recovery, and equipment care.

What you will do

• 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
• 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

Required qualifications

• 2+ years of drilling experience
• Strong mechanical aptitude and a solid understanding of drilling techniques and equipment
• Real commitment to safety
• Valid driver's license
• Work 12-hour shifts outdoors on drill pads and rugged terrain, in all weather and extreme temperatures
• Lift at least 50 lbs
• Exposure to dust, noise, vibration and diesel
• Wear all required PPE (hard hat, steel toes, safety glasses, hi-vis, hearing protection, and a respirator when required)

Nice to have

• Diamond core experience
• Experience training or leading drill helpers
• CDL

Benefits

• Housing and relocation assistance options are available

About the company

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