Maintenance Supervisor

Mariana Minerals; Moab (UT); Vor Ort; USD 90.000 - 120.000; Vollzeit

Benefits dieser Stelle

Housing assistance

Relocation assistance

Zusammenfassung

Mariana Minerals in Moab, Utah seeks a Mobile Maintenance Supervisor to lead a growing maintenance crew across Cat 777 haul trucks and 992K loaders. You will develop technicians, uphold safety standards, and serve as the senior maintenance voice on site, working hands‑on with the team to diagnose and repair heavy mobile mining equipment.

Role combines technical leadership with hands‑on field troubleshooting, maintenance planning, and on‑call support as the fleet expands toward autonomous

Qualifikationen

• Minimum 5 years of mining maintenance experience with hands‑on involvement.
• Experience with Caterpillar mobile mining equipment and diagnostics tools.
• Ability to read hydraulic and electrical schematics; welding a plus.
• Strong communication, organization, and decision‑making in a growing operation.
• Valid driver’s license required.

Aufgaben

• Lead, supervise, and develop a team of maintenance technicians with safety first mindset.
• Conduct safety meetings and inspections; ensure work meets safety requirements.
• Troubleshoot, diagnose, and repair heavy mobile mining equipment.
• Prioritize daily maintenance based on safety, production, and resources.
• Perform advanced troubleshooting using diagnostics and manuals.
• Drive reliability via preventative maintenance and failure analysis.
• Coordinate repairs with planners, operations, and vendors.
• Train technicians and provide on‑call leadership when needed.

Kenntnisse

Supervisory experience

Mining maintenance

Troubleshooting

CAT equipment

Leadership

Communication

MS Office

Autonomous mining tech

Tools

CAT ET

CAT SIS

Hydraulic systems

Electrical diagnostics

Jobbeschreibung

Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defence technologies. We’re reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making.The Mobile Maintenance Supervisor is a hands‑on working supervisor responsible for leading a team of maintenance technicians and supporting the safety, reliability, and availability of Mariana’s growing mobile mining fleet. This role combines technical leadership, field troubleshooting, crew development, maintenance planning, and day-to-day operational decision‑making.

Position Summary

Lead a growing maintenance crew. As Mobile Maintenance Supervisor at our Moab site, you’ll develop technicians, set the standard for safety and repair quality, and be the senior maintenance voice on site when it counts. This is a hands‑on role. You’ll work alongside your techs on Cat 777 haul trucks and 992K loaders, troubleshoot in the field, and help build the systems, practices, and crew culture a growing fleet needs. The operation is evolving fast (including autonomous haulage), so you’ll have real influence over how maintenance gets done here, not just inherit someone else’s playbook.

Responsibilities:

• Lead, 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 performed in accordance with company policies and applicable safety requirements.
• Work hands‑on alongside technicians to troubleshoot, diagnose, and repair heavy mobile mining equipment, including mechanical, hydraulic, and electrical systems.
• Prioritize and coordinate daily maintenance activities based on safety, equipment criticality, production needs, labor, parts, and available resources.
• Perform advanced troubleshooting and failure analysis using diagnostic tools, schematics, technical manuals, and equipment documentation.
• Drive equipment reliability and availability through preventative maintenance, repair‑quality review, equipment‑status tracking, and identification of recurring failures.
• Coordinate with planners, operations, and vendors to schedule repairs, manage work orders, source parts, and communicate repair requirements and expected downtime.
• Train and mentor technicians, provide technical leadership in the field, and provide on‑call support as needed, including serving as the senior maintenance representative when leadership may not be onsite.

Required Qualifications:

• Previous supervisory, lead technician, or crew‑leadership experience, with the ability to coach technicians and provide technical direction in the field.
• Minimum of 5 years of mining maintenance experience, with strong hands‑on experience supporting heavy mobile mining equipment.
• Strong troubleshooting and failure‑analysis skills across mechanical, hydraulic, and electrical systems, including the ability to read hydraulic and electrical schematics; welding experience is a plus.
• Experience with Caterpillar mobile mining equipment and electronic diagnostic tools; familiarity with CAT ET, CAT SIS, and direct experience with CAT 777 haul trucks and/or CAT 992K wheel loaders is strongly preferred.
• Strong communication, organization, and problem‑solving skills, with the ability to make decisions, take ownership, and work effectively in a growing operation where processes and systems are still being developed.
• Experience using maintenance tracking systems and Microsoft Office applications.
• Experience with autonomous mining technology is a plus.
• Valid driver’s license required.

Working Environment and Schedule:

• Schedule: 7 days on / 7 days off, working 12‑hour shifts. As operations expand, supervisors will rotate between day and night shifts and must be available for on‑call coverage as needed.
• Work Environment: Approximately 70% fieldwork and 30% office‑based work.
• Housing & Relocation: Housing and relocation assistance options are available.