About Mariana Minerals

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. We’re reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making.

The Driller operates drill rigs at our open-pit copper mine, supporting mineral exploration, resource definition and mining programs. The role focuses on safe, efficient drilling to plan, high-quality sample or core recovery, equipment care, and following health, safety and environmental standards. Depending on the program, this may include reverse circulation (RC), diamond core, air rotary or other drilling methods. Help us build the world's first fully autonomous mine.

Responsibilities

• Safely operate drill rigs in line with site procedures, manufacturer specs and MSHA requirements

• Do thorough pre-start inspections of rigs, compressors, pumps, rods, bits, hammers and support equipment

• Handle routine servicing, lubrication and basic troubleshooting to keep downtime low

• Collar holes accurately and hold the right angles, depths and alignment per the drill plan

• Monitor and adjust drilling parameters such as air or fluid pressure, rotation speed, weight on bit and penetration rate

• Make sure samples or core are recovered, labeled and stored correctly, with good contamination control

• Keep accurate drill logs, footage drilled, consumables used 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

• Take part in toolbox talks, pre-shift meetings, safety audits and ongoing training

• Handle equipment breakdowns and emergencies with a calm, safety-first approach

Qualifications

• 2+ years of experience as a Driller in mining or mineral exploration (RC, diamond core, air rotary or similar)

• Strong mechanical aptitude and a solid understanding of drilling techniques and equipment

• Experience across more than one drilling method is a plus

• Experience training or leading drill helpers is a strong plus

• MSHA, first aid/CPR, forklift or heavy equipment certifications are a plus

• Real commitment to safety

• Valid driver's license; CDL is a plus

Schedule

• 7 days on / 7 days off, 12-hour day shifts

Housing & Relocation: Housing and relocation assistance options are available.

Working Environment & Physical Requirements

• Work 12-hour shifts outdoors on drill pads and rugged terrain, in all weather and extreme temperatures

• Lift at least 50 lbs, with 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)

Our culture is built on four principles:

Everyone Gets Home Safe. We never put speed or cost ahead of people.

Extreme Ownership. We take full responsibility for outcomes, relentlessly driving toward solutions.

Engineer Out Requirements, then Automate. We simplify, optimize, and then automate for scale.

Share Your Legos. We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.

Join us as we build the future of responsible mineral sourcing and supply!