About the role
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. Our culture is built on three principles: 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. Summary The Reverse Circulation (RC) Driller operates RC drilling rigs to support mineral exploration and mining programs.
The role focuses on safe, efficient drilling operations, highquality sample recovery, equipment care, and compliance with health, safety, and environmental standards in often remote work environments.
Responsibilities Safely operate Reverse Circulation (RC) drilling rigs in accordance with site procedures, manufacturer specifications, and regulatory
requirements Conduct thorough pre-start inspections of drill rigs, compressors, boosters, rods, hammers, and support equipment Perform routine servicing, lubrication, and basic mechanical troubleshooting to minimize downtime Accurately collar holes and maintain correct drilling angles, depths, and alignment per drilling plans Monitor and adjust drilling parameters such as air pressure, rotation speed, bit wear, and penetration rate to optimize productivity and sample quality Ensure correct sample return, contamination control, and proper setup of cyclones, splitters, and sample bags Maintain accurate drill logs, meters drilled, consumables usage, and daily production reports Identify ground conditions and communicate changes or issues to geologists and supervisors Enforce safe work practices for offsiders and ensure compliance with all HSE