Heavy Duty Diesel Mechanic

Rio Tinto; Salt Lake City (UT); On-site; USD 70,000 - 110,000; Full time

Benefits offered by this job

Safety‑focused environment

Health programs and benefits

401(k) matching program

Employee share program

PTO and holidays, bereavement leave

Parental leave (child-caregiver)

Job summary

Rio Tinto is seeking a Mobile Equipment Mechanical Maintainer to join our Mobile Maintenance team at Kennecott Copper, near Salt Lake City, Utah. This role supports safe and reliable operation of our large mobile mining fleet on a rotating 5 on/5 off/4 on 12-hour schedule.

You will diagnose and repair heavy‑duty diesel systems, hydraulics and electrics, perform preventative maintenance, and use Cummins/Komatsu/Caterpillar diagnostic tools in a collaborative, safety‑driven environment.

Qualifications

• Minimum 3 years’ experience with heavy‑duty diesel mechanical systems.
• Ability to work rotating 12‑hour day/night shifts.
• Experience reading manuals, schematics and standard work procedures.
• Familiarity with diagnostic software for Cummins, Komatsu, and Caterpillar systems (highly desirable).

Responsibilities

• Perform preventative and corrective maintenance on large mobile mining equipment.
• Diagnose mechanical, hydraulic, and electrical faults and implement safe, effective solutions.
• Maintain haul trucks, water trucks, and auxiliary equipment including dozers, graders, and excavators.
• Use tools, equipment, and diagnostic systems safely and efficiently.
• Follow all safety, environmental, and company procedures and standards.
• Contribute to continuous improvement through proactive identification of equipment and process improvements.

Skills

Heavy‑duty diesel mechanics

Hydraulics

Electrical fundamentals

Reading manuals/schematics

Diagnostic software (Cummins/Komatsu/C

Tools

Cummins diagnostic software

Komatsu diagnostic software

Caterpillar diagnostic software

Job description

• Be part of a group that is safety driven and values inclusion, where care, courage and curiosity guide how we work and how we treat each other.
• Balanced Work-Life Rhythm with a family‑friendly rotating roster of 5 on / 5 off / 4 on, working 12‑hour day and night shifts, giving you more time for what matters most.
• Permanent employment with a leading global company, offering competitive pay, tool allowance, and a comprehensive benefits package designed to make life better for you and your loved ones.

• Be part of a group that is safety driven and values inclusion, where care, courage and curiosity guide how we work and how we treat each other.
• Balanced Work-Life Rhythm with a family‑friendly rotating roster of 5 on / 5 off / 4 on, working 12‑hour day and night shifts, giving you more time for what matters most.
• Permanent employment with a leading global company, offering competitive pay, tool allowance, and a comprehensive benefits package designed to make life better for you and your loved ones.

We’re Finding Better Ways™ to provide the materials the world needs, now and in the future. Our values – care, courage and curiosity – guide how we work and how we treat each other.

We are committed to building a diverse and inclusive workforce. Women are strongly encouraged to apply. All qualified applicants will be considered for employment without regard to gender or any other protected characteristic. Hiring decisions are based on merit, qualifications, and business needs.

About The Role

We are looking for a Mobile Equipment Mechanical Maintainer to join our Mobile Maintenance team at Kennecott Copper, supporting the safe and reliable operation of our large mobile mining fleet.

This is a great opportunity for an experienced and safety‑focused tradesperson to apply their skills in a dynamic operational environment, working a rotating 5 on / 5 off / 4 on roster (12‑hour days and nights).

Reporting to the Supervisor – Mobile Maintenance and working in a collaborative and safety‑driven team within Asset Management, you will be

• Performing preventative and corrective maintenance on large-scale mobile mining equipment
• Diagnosing mechanical, hydraulic, and electrical faults and implementing safe, effective solutions
• Maintaining haul trucks, water trucks, and auxiliary equipment including dozers, graders, and excavators
• Using tools, equipment, and diagnostic systems safely and efficiently
• Following all safety, environmental, and company procedures and standards
• Contributing to continuous improvement through proactive identification of equipment and process improvements

About You

• A commitment to the safety of yourself and your team
• Minimum 3 years’ experience working with heavy‑duty diesel mechanical systems, including hydraulics and electrical fundamentals
• Willingness and ability to work rotating 12‑hour day and night shifts
• Confidence in reading and interpreting technical manuals, schematics, and standard work procedures
• Familiarity with diagnostic software for Cummins, Komatsu, and Caterpillar systems (highly desirable)
• A collaborative mindset with respect for others in a team‑oriented and inclusive environment

What we offer

We believe in recognizing and rewarding your hard work, innovative ideas, and dedication. Our generous benefits package is designed to ensure you feel valued and appreciated. When you join us, you'll go home each day knowing you've made a positive impact on the world. Here's what we offer

• A safety-focused and inclusive working environment
• Access to top-tier family-friendly health programs including medical, prescription drug, dental, vision, life insurance coverage, and various voluntary benefits.
• 401(k) matching program (company matched .50 per dollar up to 6% of your base pay)
• 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)
• 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.
• Discount programs for leisure purposes and access to Virgin Pulse with incentives supporting your wellbeing.

Where You’ll Be Working

Our Kennecott mine is a world‑class, fully integrated copper mining operation located just outside Salt Lake City, Utah. We produce copper, precious metals including gold and silver, molybdenum, tellurium, and sulfuric acid. Kennecott has been mining and processing minerals from the rich ore body of the Bingham Canyon Mine since 1903 and is one of the top producing mines in the world, comprising approximately 11 percent of U.S. annual copper production.

Rio Tinto reserves the right to remove advertised roles prior to closing date.

About Rio Tinto

Rio Tinto is a leading global mining and materials company. We operate in 35 countries where we produce iron ore, copper, aluminium, critical minerals, and other materials needed for the global energy transition and for people, communities, and nations to thrive.

We have been mining for 150 years and operate with knowledge built up across generations and continents. Our purpose is finding better ways to provide the materials the world needs – striving for innovation and continuous improvement to produce materials with low emissions and to the right environmental, social and governance standards. But we can’t do it on our own, so we’re focused on creating partnerships to solve problems, create win‑win situations and meet opportunities.

Respect and Inclusion

Rio Tinto is committed to equal employment opportunity. All qualified applicants will be considered without regard to race, color, sex, age, religion, national origin, disability, or any other characteristic protected by federal, state, or local law.

We are committed to an inclusive environment where people feel safe, respected and valued. We want our people to feel that all voices are heard and that a variety of perspectives are not only welcome but are essential to our success. We treat all our people fairly and with dignity.

Rio Tinto participates in E- Verify to confirm work authorization. Please visit http //www.ucis.gov/ for more information.