OptiTalent · Job Finder
Jobs
96 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
41–60 of 96 jobs
Counts are paused for a minute after many searches; results are still current.
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…
Engineering Coordinator
4 weeks agoMariana Minerals · Houston, Texas, United States +1
On-siteFull-timeSenior$100K – $140K a yearEngineeringMariana Minerals is looking for an Engineering Coordinator to help drive the delivery of mineral processing and refinery projects.
Sr. Recruiter
4 weeks agoMariana Minerals · San Francisco, California, United States
On-siteFull-timeSenior$100K – $175K a yearPeople & HRWe are hiring a Sr. Recruiter to build the teams behind the teams at Mariana Minerals. You'll own full-cycle recruiting across corporate functions, helping us scale a software-first critical minerals company from the ground up.
Laboratory Technician
4 weeks agoMariana Minerals · San Francisco, California, United States
On-siteFull-time$40.00 – $45.00 an hourScience & researchThe Laboratory Technician runs high-temperature processing equipment in Mariana Minerals' Deep Sea Nodule Lab, where we turn polymetallic nodules from the Clarion-Clipperton Zone (CCZ) into battery-grade nickel, copper and cobalt. This hands-on role prepares feed, operates a…
Sr./Staff Mechanical Engineer
4 weeks agoMariana Minerals · San Francisco, California, United States +1
On-siteFull-timeLead / staff$140K – $175K a yearEngineeringMariana Minerals is looking for a highly motivated Sr./Staff Mechanical Engineer to work on building the critical minerals supply chain to support the world’s energy transition.
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…
Engineering Manager, MarianaOS
4 weeks agoMariana Minerals · San Francisco, California, United States
On-siteFull-timeManager$180.00 – $225.00 an hourEngineeringMariana Minerals is looking for an Engineering Manager to build and lead a team of software engineers working on the critical minerals supply chain that supports the world's energy transition.
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…
Sr. Software Engineer, Autonomy
4 weeks agoMariana Minerals · San Francisco, California, United States +2
On-siteFull-timeSenior$140K – $200K a yearEngineeringWe are hiring Sr. and Staff Software Engineers (Autonomy) to build the onboard and platform software that carries our fixed and mobile equipment from raw sensor data to safe, reliable motion.
Sr. Software Engineer, Infrastructure
4 weeks agoMariana Minerals · San Francisco, California, United States +2
On-siteFull-timeSenior$140K – $200K a yearEngineeringMariana Minerals is looking for a Sr. or Staff Software Engineer, Infrastructure to join the team that owns and collaborates on the platform every other engineer here builds on.
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…
Sr/Staff Civil Engineer
5 weeks agoMariana Minerals · San Francisco, California, United States +1
On-siteFull-timeLead / staff$150K – $200K a yearEngineeringMariana 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…
Member of the Special Projects Staff
5 weeks agoMariana Minerals · San Francisco, California, United States
On-siteFull-timeLead / staff$170K – $185K a yearSpecial Projects is a high-agency problem-solving team at Mariana, empowered by leadership to solve the company’s most critical and least defined problems. In any organization, there are high-leverage, ambiguous problems that either fall between organizational structures or…
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…
Lab Technician
6 weeks agoMariana Minerals · Moab, Utah, United States
On-siteFull-timeScience & researchMariana 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…
Technical Product Manager, ML & Robotics
6 weeks agoMariana Minerals · San Francisco, California, United States +2
On-siteFull-timeMid level$115K – $208K a yearData & AIMariana Minerals is a software-first, vertically integrated minerals company supplying the minerals critical to modern energy, AI, and defense technologies. Our ML systems don't live in a vacuum — they run chemistry and process simulators, see and act in our plants through…
Updated 06 Nov 2026 09:37 UTC from the OptiTalent job library.