Process Maintenance Technician

Mariana Minerals•Moab, UT

17d•Onsite

About The Position

Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying critical minerals for modern energy, AI, and defense technologies. Through its Copper One platform, it owns and operates Lisbon Valley Mining Company, a producing open-pit copper mine in southeastern Utah that runs 24/7. The Process Maintenance Technician maintains and repairs fixed plant equipment and site infrastructure, including pumps, compressors, boilers, piping, valves, and buildings. The role suits someone with strong hands-on skills in at least one area, such as pumps, welding, or troubleshooting, who is ready to cross-train in other areas. The schedule is seven days on and seven days off, working 12-hour shifts that rotate between days and nights. Housing and relocation assistance options are available. Work takes place in an active mine and may involve rough terrain, climbing, lifting more than 50 pounds, all weather conditions, and exposure to dust, fumes, and chemicals including sulfuric acid. Full PPE is required.

Requirements

At least 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.
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.
Able to walk rough terrain, climb, and lift more than 50 pounds in all weather conditions.

Nice To Haves

Industrial electrical experience.

Responsibilities

Diagnose, install, and repair fixed plant equipment, including pumps, compressors, boilers, fans, motors, gearboxes, piping, valves, and automated valves, and identify root causes.
Maintain site buildings and infrastructure, including truck shops, administrative buildings, and plumbing systems, as well as portable equipment such as mobile air compressors and pumps.
Perform welding and fabrication for pipe, frames, handrails, grating, and structural repairs.
Perform equipment rebuilds and 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 computerized maintenance management system (CMMS).
Follow MSHA regulations, lockout/tagout procedures, PPE requirements, and company SOPs.