Locomotive Mechanic

Rio Tinto•Superior, AZ

3d•Onsite

About The Position

We are looking for an Underground Locomotive Mechanic to join Resolution UG Operations & Maintenance team to support the safe and reliable operation of underground rail and locomotive systems. This hands‑on role is critical to maintaining diesel and battery locomotives, rolling stock, rail infrastructure, and associated systems that support underground production and development activities. This role is a great opportunity to become part of The Resolution Copper Company that is located in the historical Pioneer Mining District, 60 miles east of Phoenix, Arizona. Reporting to the UG Mechanical Supervisor.

Requirements

High school diploma or equivalent
Journeyman‑level mechanical trade qualification
Proven experience maintaining locomotives, rail equipment, or heavy mobile mining equipment
Strong understanding of mechanical systems including engines, drivetrains, braking systems, and hydraulics
Ability to work safely in confined, underground environments while wearing required PPE
Strong fault-finding, problem-solving, and communication skills
Commitment to safety, teamwork, and operational excellence
Current valid driver’s license
Be a team player who contributes and works with others to accomplish quality results

Responsibilities

Perform inspection, maintenance, troubleshooting, and repair of underground diesel and battery locomotives, rail cars, and associated systems
Diagnose mechanical, hydraulic, pneumatic, and braking system faults and complete corrective repairs
Support preventive and predictive maintenance programs to ensure equipment reliability and compliance
Follow approved Safe Work Procedures (SWPs), conduct Take 5 / pre‑task risk assessments, and verify critical controls prior to work
Respond to locomotive breakdowns and unplanned maintenance events underground
Maintain rail equipment in compliance with site standards, MSHA requirements, and manufacturer specifications
Accurately complete maintenance documentation, defect reports, and work management records
Collaborate with operations and other trades to support safe, coordinated underground activities
Participate in continuous improvement initiatives, housekeeping audits, and safety observations

Benefits

A safety-focused and inclusive working environment
Advantageous salary package with annual cash incentive awards (STIP) for eligible employees
Access to top-tier family-friendly health programs including medical, prescription drug, dental, vision, life insurance coverage, and various voluntary benefits.
Excellent retirement plan including up to 6% defined company contribution; Generous 401k matching program
Generous Rio Tinto employee share program, which allows you to purchase Rio Tinto Company shares.
Comprehensive leave policies which cover all moments that matter in life: PTO (paid time off), paid holidays, and paid bereavement leave.
A favorable child-caregiver leave program (Up to 100% salary top-up)
Discount programs for leisure purposes and access to Virgin Pulse with incentives supporting your wellbeing
Ongoing Employee Assistance Program (EAP) for you and your family; to help in addressing educational opportunities, addiction treatment, depression, stress, domestic issues, financial management, and legal concerns.
Our team and industry experts are here to support and work with you to explore your learning potential and career goals