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Diesel Mechanic - Mariposa, CA

Small Mine Development, LLC, Elko, NV, United States


Small Mine Development builds and operates America’s underground mines. Our mission is to be the leader in safe, productive and innovative mining solutions. We are seeking motivated, self‑starters, that can work safely while ensuring production goals are met. By joining our team, you will be tasked with hard yet very rewarding work that provides opportunities for career development and advancement.

Position
Diesel Mechanic

Pay Rate
Competitive hourly wage with per diem + safety and production bonus

Schedule
7 on 7 off, 12‑hour shifts. Rotating days and nights

Area
Mariposa, California - Blue Moon/Keystone Underground Mine

General Position Overview
Under the direction of the site master mechanic, heavy equipment diesel mechanics are responsible for troubleshooting, repairing, and maintaining mobile and stationary underground mining equipment. Our fleet includes (but is not limited to):

Caterpillar - Articulated Dump Trucks, LHD Loaders (battery and diesel powered), Large Wheel Loaders, Dozers, Skip Loaders, Forklifts

Sandvik - Jumbo Drills, Rock Bolters, LHD Loaders, Articulated Dump Trucks

Atlas Copco/Epiroc - Jumbo Drills, Rock Bolters, LHD Loaders

Getman - Explosives Trucks, Lube Trucks

JLG Skytrak - Forklifts

Various Man Carriers and Tractors

Duties And Responsibilities
Our underground diesel mechanics are tasked with conducting safety checks, diagnosing and repairing mechanical failures (including electrical and hydraulic systems), hose repairs, performing scheduled PMs on all equipment and keeping electronic work order records via our CMMS. Duties also include major component repairs and replacing when necessary.

Experience and Qualification Requirements

Work with a safety-first mind set and maintain situational awareness at all times.

Hold a current MSHA Certificate (5000‑23) in underground metal
on‑metal mining.

Have experience maintaining Sandvik drilling and haulage equipment, Epiroc drilling and haulage equipment, Caterpillar surface and underground equipment.

Be proficient in interpreting electrical and hydraulic schematics.

Be competent with the use of service, parts, and operator’s manuals – both digital and paper.

Have knowledge and understanding of all underground (hard‑rock) mining equipment applications.

Have the ability to lift a minimum of 50 lbs. and work in year‑round weather conditions.

Possess knowledge and experience with diagnostic software.

Have experience with fluid power diagnostics.

Have experience with OEM and retrofit emissions products such as passive DPFs, active DPFs, and SCR systems.

Have the ability to weld and use a cutting torch.

Beneficial Skills But Not Required

Ability to align bore and air arc

Experience with gas analyzer

Understanding of oil analysis and results

Benefits

401k

Enrollment in ESOP (Employee Stock Ownership Plan)

Medical, Dental, and Vision Insurance

Flexible Spending Account

Various insurance offerings through Colonial, including life and short‑term disability

Paid Vacation

Paid Holidays

Transportation to and from job site

Contributions to position specific Continuing Education

Small Mine Development, LLC is an Equal Opportunity Employer.

We are a Drug Free Workplace. Career candidates must pass a drug screen.

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