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.
Position Summary
The Mine Maintenance Supervisor is a safety-focused leader responsible for overseeing a team of technicians and ensuring the efficient operation of mine equipment. This role requires strong technical and problem-solving skills to diagnose and repair equipment, as well as excellent communication and organizational abilities to manage work orders, parts, and projects. The Mine Maintenance Supervisor will foster a positive work environment, prioritize safety, and collaborate effectively with other departments to maximize productivity and minimize downtime.
Essential Duties and Responsibilities:
Safety and Compliance:
Crew Management:
Workload Management:
Work Order Management:
Parts Management:
Equipment Repair:
Required Qualifications:
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.
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.
Position Summary
The Mine Maintenance Supervisor is a safety-focused leader responsible for overseeing a team of technicians and ensuring the efficient operation of mine equipment. This role requires strong technical and problem-solving skills to diagnose and repair equipment, as well as excellent communication and organizational abilities to manage work orders, parts, and projects. The Mine Maintenance Supervisor will foster a positive work environment, prioritize safety, and collaborate effectively with other departments to maximize productivity and minimize downtime.
Essential Duties and Responsibilities:
Safety and Compliance:
- Conduct daily safety meetings and workplace inspections to ensure a safe work environment.
- Manage and maintain technician daily logs, incident/accident reports, and investigation documentation.
- Ensure compliance with all relevant safety regulations and company policies.
Crew Management:
- Complete timecards for crew in an accurate and timely manner.
- Supervise and lead a team of maintenance technicians.
- Assign tasks and prioritize workload to ensure efficient completion of maintenance activities.
- Foster a positive and collaborative team environment.
- Provide guidance, mentorship, and training to develop technician skills and knowledge.
- Promote and maintain a clean, organized, and safe work area.
Workload Management:
- Effectively manage time and resources to meet deadlines and production targets.
- Prioritize maintenance tasks based on urgency and impact on operations.
- Plan and organize projects, including coordinating tooling, parts, and personnel.
Work Order Management:
- Create, review, and complete work orders accurately and efficiently.
- Communicate effectively with planners to ensure proper scheduling and resource allocation.
Parts Management:
- Create, review, and manage parts lists for maintenance activities.
- Communicate with vendors to source and procure necessary parts.
- Research and identify suitable replacement parts and gather technical information.
Equipment Repair:
- Perform hands-on, in-the-field repairs and troubleshooting alongside the maintenance team as needed to support operational needs.
- Research technical information and parts requirements for repairs.
- Advise planners on necessary repairs and estimated downtime.
- Manage equipment availability and reporting to optimize operational efficiency.
- Collaborate with other departments to ensure timely and effective equipment repair.
Required Qualifications:
- Experience managing a team in mobile or vehicle maintenance, preferably in a mine setting.
- Exceptional communication, interpersonal, and coordination skills are essential for success in this role.
- Proficient in Microsoft Office Suite, especially Excel and Outlook.
- The ideal candidate will possess proficiency in various welding techniques and demonstrate safe handling of related equipment.
- A comprehensive understanding of vehicle systems, including hydraulics, electrical, filtration, fuel, A/C and refrigeration, is crucial, along with the ability to troubleshoot, repair, and perform preventative maintenance on them.
- Ability to perform advanced troubleshooting and failure analysis, utilizing electronic diagnostic tools and interpreting maintenance manuals and schematics.
- Knowledge and skill in maintaining various pumps, compressors, boilers, and other plant equipment.
- The ability to work rotating shifts is necessary, with the understanding that the shift schedule may change as needed.
- Be willing and able to perform manual labor tasks as required.
- Be proficient in the use of maintenance tracking software.
- Be able to read and understand Material Safety Data Sheets (MSDS).
- Possess a valid driver's license.
- Must be able to work extended hours, overtime, and be available for on-call status.
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.