# Process Maintenance Technician **Company:** [Mariana Minerals](https://zerogtalent.com/frontier-companies/mariana-minerals) **Location:** Moab, UT **Work mode:** On-site **Seniority:** Mid **Employment type:** Full Time **Category:** Technician **Department:** Operations **Listed:** 2026-10-23 [View and apply on Zero G Talent](https://zerogtalent.com/frontier-jobs/mariana-minerals/process-maintenance-technician-73182332-04a0-4c7c-872c-79bae0bba21b) ## What you'll do - Diagnose, install, repair fixed plant equipment (pumps, compressors, boilers, valves) - Maintain site buildings, infrastructure, and portable equipment - Perform welding/fabrication for piping, structural repairs - Conduct preventive maintenance: rebuilds, lubrication, inspections, oil sampling - Perform basic electrical troubleshooting; operate forklifts, cranes, boom trucks ## What you need - 2+ yrs fixed plant/mining/industrial maintenance experience - Strong hands-on skills: pumps, welding, or mechanical troubleshooting - Working knowledge of pumps, motors, gearboxes, piping systems - Basic electrical knowledge: wiring diagrams, multimeter, motor troubleshooting - CMMS experience and ability to read technical documentation ## Job description ### **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. Through its Copper One platform, Mariana Minerals owns and operates Lisbon Valley Mining Company, a producing open-pit copper mine in southeastern Utah running 24/7. As a Process Maintenance Technician, you'll maintain and repair everything that's "nailed to the ground": pumps, compressors, boilers, piping, valves, and the buildings that keep the operation running. The ideal candidate is strong in at least one area, such as pumps, welding, or troubleshooting, and is ready to cross-train in the rest. ### **Responsibilities** - Diagnose, 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 systems, along with portable equipment such as mobile air compressors and pumps. - Perform welding and fabrication for pipe, frames, handrails, grating, and structural repairs. - Perform equipment rebuilds, component replacements, lubrication, inspections, oil sampling, and other preventive and condition-based maintenance. - Perform basic electrical troubleshooting and repair on motors, starters, and controls, and work alongside electricians to rack out, unwire, install, and troubleshoot process equipment. - Safely operate forklifts, overhead cranes, boom trucks, and other material-handling equipment. - Document inspections, repairs, and parts in work orders and the CMMS. - Follow MSHA regulations, lockout/tagout procedures, PPE requirements, and company SOPs. ### **Qualifications** - 2+ years of maintenance experience in fixed plant, mining, industrial, or heavy manufacturing environments. - Strong hands-on skills in at least one area: pumps, welding and fabrication (MIG, stick, cutting), or mechanical troubleshooting. - Working knowledge of pumps, motors, gearboxes, piping systems, and mechanical drive systems. - Basic electrical knowledge, including reading wiring diagrams, using a multimeter, and troubleshooting motors and controls. Industrial electrical experience is a plus. - Ability to read and interpret service manuals, parts manuals, schematics, and technical documentation. - Ability to work safely in an active mine environment and perform physically demanding tasks. - Experience using computerized maintenance management systems (CMMS). - Strong communication skills and ability to work effectively with operators, electricians, and support teams. ### **Working Environment and Schedule** - **Schedule:** 7 days on / 7 days off, 12-hour shifts, rotating between days and nights. - **Housing & Relocation:** Housing and relocation assistance options are available. - Able to walk rough terrain, climb, and lift 50+ lbs in all weather conditions. - Exposure to dust, fumes, and chemicals (including sulfuric acid); full PPE 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!** ## Other open roles at Mariana Minerals - [Maintenance Technician – Career Development Program](https://zerogtalent.com/frontier-jobs/mariana-minerals/maintenance-technician-career-development-program-5f2b9de4-f391-410f-a9df-1c16e671591d) — Moab, UT - [Mobile Maintenance Supervisor](https://zerogtalent.com/frontier-jobs/mariana-minerals/mobile-maintenance-supervisor-053a699e-642c-4ebc-95ea-8630c69bc3b7) — Moab, UT - [Commercial Manager, Energy & Utilities](https://zerogtalent.com/frontier-jobs/mariana-minerals/commercial-manager-energy-utilities-0646e630-e634-44af-9d71-7eaae4bb75cb) — San Francisco HQ - [Procurement Manager, Mobile Equipment](https://zerogtalent.com/frontier-jobs/mariana-minerals/procurement-manager-mobile-equipment-177da57c-e591-4fba-92cd-ee5e7cdac125) — San Francisco HQ - [Construction & Commissioning Quality Engineer](https://zerogtalent.com/frontier-jobs/mariana-minerals/construction-commissioning-quality-engineer-425306c5-d092-4cab-9bc9-a6d565b55169) — Houston, TX --- *Source: [Zero G Talent](https://zerogtalent.com), the job board for space, defense, AI, robotics and frontier-tech companies.*