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Jobs in Utah, United States
29 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
1–20 of 29 jobs
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Stacking/Sizer Operator
8 days agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeTrades & logisticsThe Equipment Operator plays a critical operational role in supporting mine production through the safe and efficient operation of heavy equipment, including stackers and sizers.
Mobile Maintenance Supervisor
9 days agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeManagerEngineeringLead, supervise, and develop a team of maintenance technicians while maintaining a safety-first mentality and a strong culture of accountability, teamwork, and continuous improvement.; Conduct safety meetings and workplace inspections, address hazards, and ensure work is…
Process Engineer
11 days agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeMid levelEngineeringAct as the engineering owner of the SX and EW circuits, including mixer-settlers, organic and electrolyte handling, tank house, cell house and associated utilities.; Monitor daily plant performance (PLS grade and flow, extraction and stripping efficiency, phase continuity,…
Process Maintenance Technician
2 weeks agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeMid levelTrades & logisticsDiagnose, install, and repair fixed plant equipment, including pumps, compressors, boilers, fans, motors, gearboxes, piping, valves, and automated valves, identifying root causes.; Maintain site buildings and infrastructure, including truck shops, admin buildings, and plumbing…
Mariana Minerals · Moab, Utah, United States
On-siteFull-timeTrades & logisticsMariana 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…
Analytical Lab Chemist
2 weeks agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeScience & researchJoin our analytical lab at Copper One as an Associate Analytical Chemist. You’ll run sample prep and analytical testing on state-of-the-art equipment in a newly renovated lab, keep data accurate and instruments performing at their best, and dig into problems that don’t come…
Process Plant Technician
2 weeks agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeTrades & logisticsThe Process Plant Technician is a position in the operation of SX/EW plant and tank house. Where in, the Process Plant Technician obtains and demonstrates knowledge of the process plant operation parameters and operating procedures. The Process Plant Technician supports and…
Project Maintenance Technician
2 weeks agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeOperationsWe are hiring a Maintenance Mechanic for our new project team at our Moab site, formerly Lisbon Mines, to assemble and install equipment for new projects.
Project Engineer
2 weeks agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeMid levelEngineeringScope, design, and lead process improvement and capital projects from concept through commissioning; Develop process flow diagrams, P&IDs, mass and energy balances, and equipment specifications; Size and select pumps, tanks, piping, and other process equipment; Use plant data…
Production Planner
3 weeks agoMariana Minerals · Houston, Texas, United States +1
HybridFull-timeSeniorOperationsPartner with site leads to build, refine, and maintain site-level production plans; Consolidate production plans across all locations into a unified, company-wide view; Define, track, and report KPIs covering productivity, cycle times, and costs; Build planning tools and…
Driller Assistant (Helper)
3 weeks agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeEntry levelOperationsHelp the Driller safely set up, move and tear down the drill rig and drill pad; Handle rods, core barrels, casing and tooling while tripping in and out of the hole; Pull, clean, measure, label and box core accurately, with good contamination control; Mix and manage drilling…
Staff Mining Engineer
4 weeks agoMariana Minerals · Moab, Utah, United States +1
On-siteFull-timeLead / staff$123K – $171K a yearEngineeringMariana Minerals is seeking a Staff Mining Engineer with 10+ years of mining experience and a strong background in hands-on, hard-rock open pit operations. This role connects mine planning with field execution, ensuring that designs and production schedules translate into safe,…
Core Driller
4 weeks agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeMid levelOperationsSafely 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…
Core Driller Assistant
4 weeks agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeEntry levelOperationsHelp the Driller safely set up, move and tear down the drill rig and drill pad; Handle rods, core barrels, casing and tooling while tripping in and out of the hole; Pull, clean, measure, label and box core accurately, with good contamination control; Mix and manage drilling…
Blast Hole Driller
4 weeks agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeMid levelOperationsSafely operate a blast hole drill rig in line with site procedures, manufacturer specs and MSHA requirements; Drill production holes to plan, holding the right hole locations, depths and angles; Do thorough pre-start inspections, routine servicing and basic troubleshooting to…
Operator
4 weeks agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeTrades & logisticsThe Heavy Equipment Operator plays a critical operational role in supporting mine production through the safe and efficient operation of mobile heavy equipment, including loaders, dozers, excavators, graders, water trucks, and drill rigs.
Mariana Minerals · San Francisco, California, United States +2
On-siteFull-timeSenior$100K – $150K a yearEngineeringMariana Minerals is hiring a Sr. Regional Permitting and Compliance Environmental Engineer to own permitting execution and compliance implementation across our U.S. mining, processing, and refining project sites. Reporting to the Global Environmental Permitting Lead, you will…
Project Electrician
5 weeks agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeSeniorOperationsInstall, wire, and terminate equipment, panels, and control systems for new projects; Install, calibrate, and troubleshoot field instrumentation; Support PLC work, including logic troubleshooting, I/O checkout, and bringing systems online; Read and work from electrical…
Staff Mobile Equipment and Fleet Engineer
5 weeks agoMariana Minerals · Houston, Texas, United States +2
On-siteFull-timeLead / staff$138K – $170K a yearEngineeringMariana Minerals is seeking a Mobile Equipment and Fleet Engineer to build and optimize the equipment fleet for our open pit mining operations. You will own the technical specifications, equipment and OEM selection, and full lifecycle economics of production and support…
Sr. Environmental Engineer
7 weeks agoMariana Minerals · San Francisco, California, United States +2
On-siteFull-timeSenior$100K – $150K a yearEngineeringMariana Minerals is hiring a Sr. Environmental Engineer to provide technical environmental engineering support across our U.S. mining, processing, and refining project sites in a fast-paced, multi-project environment. Reporting to the Global Environmental Permitting Lead, you…
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.