Position Summary

The Superintendent - Mobile Maintenance is responsible for providing strategic leadership and oversight of all mobile equipment maintenance activities, including 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 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 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, 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.

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 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 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 downtime and maximize haulage efficiency. AHS Integration & Performance Collaborating with operations, OEM support teams, and site technology groups to ensure seamless interaction between maintenance and autonomous haulage.

Ensure maintenance teams are trained on specific procedures, including system resets, calibration requirements, and sensor care.

Monitor fleet performance metrics (interventions, stoppages, sensor faults, network issues) and drive corrective actions.

Support continuous improvement of 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 technology, diagnostics, and advanced troubleshooting.

Foster strong communication between maintenance, operations, engineering, and 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 specific performance indicators. Continuous Improvement & Reliability Engineering Drive root cause analysis (RCA) for major failures, recurring issues, and 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, 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 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 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 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 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

ASARCO LLC

provides equal opportunity for all individuals without regard to race, color, creed, religion, age, national origin, sex, pregnancy, sexual orientation, gender identity or expression, genetic information, disability, military status, familial status, or any other characteristic(s) protected by local, state, or federal law(s).