Job Description

Mission Statement
ASARCO is committed to being a globally competitive, sustainable, and innovative metals producer. We foster a culture of ownership, empowerment, and accountability, where employees take responsibility for identifying and solving challenges. We strive to deliver high-quality products by enhancing employee well-being, customer satisfaction, and technological advancements. Through continuous improvement and collaborative efforts, we provide lasting value for shareholders, while positively impacting the communities and environments in which we operate.

Vision Statement
We envision a future where ASARCO leads the industry through innovation, environmental stewardship, and operational excellence. Our empowered employees are the drivers of change, continuously improving processes and fostering a culture of safety, transparency, and inclusion. We are committed to effective communication and collaboration, creating a unified team that is strong, respected, and aligned with our strategic vision.

ASARCO operates under its Operational Integrity System (OIS), ensuring compliance with ISO 14001 Environmental and ISO 45001 Occupational Health & Safety standards, using a risk-based approach to improve safety, sustainability, and operational performance.

The Superintendent - Mobile Maintenance (Mining, AHS Hauling) is responsible for providing strategic leadership and oversight of all mobile equipment maintenance activities, including autonomous haul trucks, support equipment, and ancillary mining fleets. This role ensures the safe, reliable, and cost-effective operation of mining assets while supporting production objectives and autonomous haulage system (AHS) performance.

The Superintendent leads a high-performing team of supervisors, planners, technicians, and contractors, fostering a culture of zero harm, accountability, continuous improvement, and operational excellence. Key responsibilities include developing and executing maintenance strategies, driving equipment reliability and availability, managing budgets and resources, ensuring regulatory compliance, and supporting workforce development.

This position works closely with operations, engineering, OEM representatives, technology groups, and AHS vendors to optimize fleet performance, improve maintenance processes, and advance digital and reliability initiatives. Superintendent is accountable for ensuring compliance with MSHA regulations, ISO standards, site safety requirements, and AHS protocols while utilizing data-driven decision-making to enhance operational performance, reduce downtime, and support the site's long-term business objectives.

Safety Leadership & Compliance

• Champion a zero‑harm safety culture, ensuring all maintenance activities follow MSHA, site policies, OEM guidelines, and AHS operational protocols.
• Lead field‑level risk assessments, critical task verifications, and ensure proper lockout/tagout procedures for both manned and autonomous equipment.
• Ensure maintenance teams understand and follow AHS exclusion zones, interaction rules, and autonomous vehicle hazard controls.
• Conduct regular safety audits, incident investigations, and corrective action follow‑through.
• Ensure the team is working safely and maintaining full compliance with ISO 14001 (environmental management) and ISO 45001 (occupational health and safety) standards

Maintenance Strategy & Execution

• Oversee the maintenance of mobile mining equipment, including autonomous haul trucks, manned support equipment, and ancillary fleet.
• Develop and execute short‑ and long‑range maintenance plans, ensuring alignment with production targets and AHS operational requirements.
• Ensure high equipment availability and reliability through effective preventive, predictive, and condition‑based maintenance practices.
• Manage backlog, work order quality, PM compliance, and component life tracking.
• Optimize maintenance windows to minimize AHS downtime and maximize haulage efficiency.

AHS Integration & Performance

• Collaborating with AHS operations, OEM support teams, and site technology groups to ensure seamless interaction between maintenance and autonomous haulage.
• Ensure maintenance teams are trained on AHS‑specific procedures, including system resets, calibration requirements, and sensor care.
• Monitor AHS fleet performance metrics (interventions, stoppages, sensor faults, network issues) and drive corrective actions.
• Support continuous improvement of autonomous haulage workflows, maintenance readiness, and system reliability.

Leadership, Workforce Development & Culture

• Lead a team of supervisors, planners, technicians, and contractors with clear expectations, accountability, and coaching.
• Build a high‑performance culture focused on safety, quality, and operational discipline.
• Identify skill gaps and implement training plans, especially in AHS technology, diagnostics, and advanced troubleshooting.
• Foster strong communication between maintenance, operations, engineering, and AHS control room teams.

Planning, Budgeting & Resource Management

• Manage annual maintenance budgets, cost controls, and capital planning for fleet upgrades and component replacements.
• Ensure adequate staffing, tooling, parts inventory, and contractor support to meet maintenance demand.
• Work closely with supply chain to improve parts availability, reduce lead times, and optimize warehouse strategies.
• Track and report KPIs such as availability, utilization, MTBF, MTTR, cost per hour, and AHS‑specific performance indicators.

Continuous Improvement & Reliability Engineering

• Drive root cause analysis (RCA) for major failures, recurring issues, and AHS‑related stoppages.
• Implement reliability improvements through design changes, procedural updates, and technology enhancements.
• Support digital transformation initiatives such as telematics, condition monitoring, and predictive analytics.
• Benchmark performance against industry standards and identify opportunities for innovation.

Stakeholder & OEM Relationship Management

• Maintain strong working relationships with OEM representatives, AHS vendors, and technical support teams.
• Coordinate warranty claims, technical bulletins, software updates, and field trials.
• Communicate maintenance performance, risks, and improvement plans to senior leadership and cross‑functional teams.

Compliance, Documentation & Reporting

• Ensure accurate and timely documentation of work orders, inspections, component changes, and AHS‑related maintenance events.
• Maintain compliance with regulatory requirements, internal audits, and asset management standards.
• Provide clear, data‑driven reports on fleet health, maintenance performance, and AHS system reliability.

Administrative & Financial

• Review, update, and close SAP work orders with accurate equipment history and maintenance notes.
• Manage parts, materials, tools, and consumables required for maintenance activities.
• Monitor maintenance costs and resource utilization
• Track and analyze maintenance KPIs using digital reporting tools

Qualifications

• High school diploma or GED
• Minimum 5 years of maintenance experience in mining or heavy equipment environments
• Previous supervisory or leadership experience preferred

Technical Skills & Knowledge

• Strong knowledge of:
  • Diesel engines and heavy mobile mining equipment
  • Electric drive haul truck systems and autonomous haul technologies
  • Hydraulic and pneumatic systems
  • Low-voltage electrical and lubrication systems
• Experience with:
  • MineStar and Vision Link systems
  • PI Vision and Power BI for data analysis and reporting
  • Oil analysis and condition monitoring programs
  • Caterpillar 794AC electric drive autonomous haul trucks
  • Komatsu 785 water trucks and 830E haul trucks
  • Caterpillar dozers (D8, D10, D11’s)
  • Caterpillar motor graders (14, 16, 18 & 24’s)
  • Caterpillar Loaders (988, 992, 995’s)
  • Boom trucks and light-duty vehicles
• Ability to read and interpret complex schematics and technical drawings
• Knowledge of:
  • Root Cause Analysis (RCA)
  • Predictive and preventative maintenance strategies
• Proficiency with:
  • SAP and Microsoft Office Suite
• Strong troubleshooting and analytical skills
• Strong understanding of MSHA safety and environmental regulations

Working Conditions

• Open pit mining environment with exposure to dust, noise, heavy equipment, and extreme weather
• Interaction with autonomous and manned equipment, requiring strict adherence to safety protocols
• May require extended hours and on-call responsibilities

Additional Duties

• Attend industry workshops and training focused on autonomous systems, digital mining tools, and best practices
• Perform other duties as assigned

NOTICE TO TEMPORARY STAFFING AGENCIES, PLACEMENT SERVICES, AND PROFESSIONAL RECRUITERS

ASARCO LLC maintains an internal recruiting department and manages its own recruitment processes directly.

Unless ASARCO LLC has entered into a formal agreement with your organization, unsolicited submissions of résumés, candidate profiles, or recruiting services will not be accepted or considered, and no fees will be paid in connection with such submissions.

If your firm believes it has an approved agreement or seeks to establish one, please contact ASARCO LLC Human Resources department for verification prior to engaging in any recruiting activity.

A core value of ASARCO LLC is “Safety First.” The Company is committed to help employees continuously improve their efforts to work in the most safe, inclusive, socially, and environmentally responsible manner practicable. Employee safety and health, both on and off the job, are critically important to the Company. Therefore, ASARCO LLC requires employees to have and effectively demonstrate good working knowledge of modern safety systems. Each employee will take prime responsibility for ensuring that s/he works within all required safety procedures and processes.

ASARCO LLC is an equal opportunity employer. Candidates must possess a current and valid driver’s license. Offers of employment are contingent upon a successful background check and pre-employment physical including a drug screen.

ASARCO LLC offers an excellent low-cost benefits package for medical/prescription/ dental/vision, disability coverage, life insurance and other optional coverage and 401(k) plan with company match.

The Ray mine is located 64 miles southeast of Phoenix and 70 miles northeast of Tucson. We have a robust bus transportation carpool vanpool program and encourage employees to participate. Employees save more than 50% of their commuting costs while reading, sleeping or just enjoying the view.