Field Technician - Underground

Komatsu; Mesa (AZ); On-site; USD 70,000 - 90,000; Full time

Job summary

Komatsu is seeking a highly motivated Field Technician - Underground Mining to support customers operating underground equipment across Arizona and assigned territories. The role emphasizes mechanical, hydraulic, and electrical troubleshooting with frequent travel to sites, both above and below ground.

The ideal candidate has a strong background with heavy equipment in mining or related industries, a high school diploma or GED (Associate preferred), and the ability to work safely under varied

Qualifications

• High school diploma or GED required.
• 2+ years related experience and/or training; or equivalent.
• Willingness to travel to customer sites and work above and below ground in underground mining environments.

Responsibilities

• Maintain and repair various Komatsu equipment with a main focus on hard rock underground.
• Timely, effective repairs of machine components in the Field.
• Complete assigned jobs and tasks to meet flat rate times and re-do metric.
• Work safely and follow all KEC/Customer safety policies and procedures.
• Complete related paperwork and access databases required to complete job (work order, parts order, JSA, DBS, SIMS, SIS web, STW) accurately and timely.
• Follow contamination control and HAZMAT rules and regulations.

Skills

Mechanical troubleshooting

Hydraulic systems

Electrical troubleshooting

Heavy equipment experience

Education

High school diploma or GED

Associate Degree in Diesel Technology

Job description

Job Description

Field Technician - Underground

Posting Start Date: 9/15/26

Job Location (Short): Albuquerque, New Mexico, USA, 87109 | Billings, Montana, USA, 59105 | Elko, Nevada, USA, 89801 | Ely, Nevada, USA, 89301 | Evansville, Wyoming, USA, 82636-0459 | Gillette, Wyoming, USA, 82718 | Mesa, Arizona, USA, 85210-6105 | Prescott, Arizona, USA, 86305 | Reno, Pennsylvania, USA, 16343 | Rock Springs, Wyoming, USA, 82901 | Ruth, Nevada, USA, 89319 | Safford, Arizona, USA, 85546 | Sahuarita, Arizona, USA, 85629 | Salt Lake City, Utah, USA, 84104 | Sheridan, Wyoming, USA, 82801 | Sparks, Nevada, USA, 89431 | St. George, Utah, USA, 84790 | Tucson, Arizona, USA, 85713

Requisition ID: 36832

Onsite or Remote: Onsite Position

Join Komatsu and Be Part of Something Big!

Job Overview

Komatsu is seeking a highly motivatedField Technician - Underground Mining to support customersoperating underground mining equipment throughout Arizona and other assigned territories. This position plays a critical role in maintaining equipment availability and providing exceptional customer support at active mining operations.

The ideal candidate will possess strong mechanical, hydraulic, and electrical troubleshooting skills and have experience working on heavy equipment in mining, construction, or related industries. This position involves frequent travel to customer sites and requires the ability to work both above and below ground in underground mining environments.

This job requires a candidate to be based in Tucson or Phoenix AZ.

Equipment Supported

Technicians may work on a variety of underground mining equipment, including:

• Load-Haul-Dump (LHD) loaders
• Underground loaders
• Bolters
• Auxiliary underground mining support equipment
• Additional underground hard-rock mining equipment as assigned

Key Job Responsibilities

• Maintain and repair various Komatsu equipment with a main focus on hard rock underground
• Timely, effective repairs of machine components in the Field
• Complete assigned jobs and task to meet flat rate times and re-do metric.
• Work safely and follow all KEC/Customer safety policies and procedures.
• Complete related paperwork and access databases require to complete job (work order, parts order, JSA, DBS, SIMS, SIS web, STW) accurately and timely.
• Follow contamination control and HAZMAT rules and regulations.

  Qualifications/Requirements

  • High school diploma or general education degree (GED) required.
  • Associate Degree in Diesel Technology or equivalent preferred.
  • Minimum of 2 years related experience and/or training; or equivalent combination of education and experience.
  • Flexibility to work various schedules including shift work.
  • Clean driving record

  Certificates, Licenses, Registrations

  • Certified to operate a forklift and/or manlift.
  • May be required to complete a DOT physical.
  • Required to complete MSHA surface and undergroundcertification.
  • May be required to complete respirator certification.

  Diversity & Inclusion Commitment

  At Komatsu we come from diverse backgrounds, with unique perspectives, experiences, and contributions.We are committed to creating a workforce that is reflective of the communities we work and live in. We believe that our people are part of our shared purpose.We are authentic, ambitious, and innovative in our pursuit of Diversity & Inclusion.United, we are on a journey towards a sustainable future that creates value together.

  Company Information

  Komatsu is a world leader in manufacturing construction, mining, forestry, and industrial heavy equipment.Founded in 1921, Komatsu has a long history of quality, reliability, innovation, and excellence.Headquartered in Tokyo, Japan, Komatsu facilities, distributors and dealers are in more than 140 countries and employ more than 60,000 people.Komatsu offers a diverse and challenging work environment, where you can grow your skills and career, and contribute to a sustainable, clean-energy future.If you are looking for a company that values your talent and potential, be a part of something big and join a team that is shaping the world!

  If you want to learn more about Komatsu, please visit our website at https://www.komatsu.com/.