Mobile Maintenance Supervisor

Mariana Minerals•Moab, UT

About The Position

The Mobile Maintenance Supervisor is a hands-on working supervisor responsible for leading maintenance technicians and supporting the safety, reliability, and availability of Mariana Minerals’ growing mobile mining fleet. The role combines technical leadership, field troubleshooting, crew development, maintenance planning, and day-to-day operational decision-making. The ideal candidate has hands-on maintenance leadership experience, strong technical credibility, and a proactive, solutions-oriented approach. They will troubleshoot in the field, develop technicians, improve processes, and help build the systems, practices, and crew culture needed to support a growing fleet. The schedule is seven days on and seven 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. The work environment is approximately 70% fieldwork and 30% office-based work. Housing and relocation assistance options are available.

Requirements

Previous supervisory, lead technician, or crew-leadership experience, with the ability to coach technicians and provide technical direction in the field.
At least 5 years of mining maintenance experience, including strong hands-on experience supporting heavy mobile mining equipment.
Strong troubleshooting and failure-analysis skills across mechanical, hydraulic, and electrical systems.
Ability to read hydraulic and electrical schematics.
Experience with Caterpillar mobile mining equipment and electronic diagnostic tools.
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.
Valid driver’s license.
Availability for a seven-days-on, seven-days-off schedule with 12-hour shifts, rotation between day and night shifts as operations expand, and on-call coverage as needed.

Nice To Haves

Welding experience.
Familiarity with CAT ET and CAT SIS.
Direct experience with CAT 777 haul trucks and/or CAT 992K wheel loaders.
Experience with autonomous mining technology.

Responsibilities

Lead, supervise, and develop maintenance technicians while maintaining a safety-first mentality and a culture of accountability, teamwork, and continuous improvement.
Conduct safety meetings and workplace inspections, address hazards, and ensure work complies 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.
Improve 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 and provide technical leadership in the field.
Provide on-call support as needed, including serving as the senior maintenance representative when leadership is not onsite.