Marianaminerals
Diamond/Core Driller Assistant
Moab, UT
Apply through hirly
hirly scores this role against your resume, shows its reasoning, then writes a resume and cover letter for it and fills the application with you. Free to start — no card required.
hirly's read of this role
- Role family
- Supply chain
- Seniority
- Mid level
- Country
- US
- Work mode
- Remote-friendly
- First seen by hirly
- 1 Sept 2026
Derived automatically from the posting. Sign up to see how the role scores against your own resume.
the posting
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.
Summary
The Diamond/Core Driller Assistant supports drilling operations by assisting the Lead Driller with equipment setup, operation, maintenance, and site activities. This role requires physical endurance, attention to safety, and the ability to work in remote outdoor environments. The assistant plays a key role in ensuring efficient and safe core drilling operations.
Responsibilities
Assist with setup, operation, and teardown of diamond/core drilling rigs
Handle drill rods, tooling, and core barrels during drilling operations
Retrieve, label, and store core samples accurately
Mix and manage drilling fluids and maintain circulation systems
Perform routine maintenance and basic repairs on drilling equipment
Keep the worksite clean, organized, and hazard-free
Load and unload equipment, supplies, and materials
Follow all safety procedures and environmental regulations
Support site preparation tasks such as clearing and leveling drill locations
Communicate effectively with the Lead Driller and crew
Qualifications
High school diploma or GED preferred
Previous experience in drilling, construction, mining, or similar field is a plus
Ability to perform physically demanding labor (lifting 50+ lbs)
Basic mechanical aptitude and familiarity with hand/power tools
Strong commitment to safety and attention to detail
Willingness to work long hours in outdoor and remote conditions
Valid driver’s license preferred (CDL a plus)
Safety certifications (First Aid/CPR, OSHA/MSHA, H2S) are advantageous
Attention to detail
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!
Is this role actually a fit for you?
hirly answers with a score and its reasoning, then writes the resume and cover letter if you decide to go for it.
Score it against my resume