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Diesel Trainee Jobs in California (NOW HIRING)

Waste Connections

Diesel Mechanic

San Luis Obispo, CA · On-site

$32 - $43/hr

Manage a team of trainees and collaborate with other diesel mechanics. * Demonstrate strong time management, organization, problem-solving, and customer service skills. * Manage repairs of electrical ...

Pape Machinery Inc C&F

Technician Trainee

Fremont, CA

$29.79 - $48.74/hr

PAPE' MACHINERY, INC. - CONSTRUCTION & FORESTRY DIVISION - FREMONT, CA TECHNICIAN TRAINEE : Do you ... Auto/Diesel Technology is preferred. * Must have a starter set of general tools. * Ability to ...

PetersonCat

Truck Technician Trainee

San Leandro, CA · On-site

$30.67 - $48.56/hr

Peterson Trucks has a need for a Truck Technician Trainee based at our San Leandro, CA location ... in Diesel Technology or other closely related field; and a minimum of one years of related ...

Peterson

Truck Technician Trainee

San Leandro, CA · On-site

$30.67 - $48.56/hr

Peterson Trucks has a need for a Truck Technician Trainee based at our San Leandro, CA location ... in Diesel Technology or other closely related field; and a minimum of one years of related ...

W.W.Williams Company

Technical Trainer

Rialto, CA · On-site

$70K - $100K/yr

Observes trainees in the laboratory and answer trainees' questions. * Administer written and ... Its products and service offerings include diesel engines, transmissions, bumper-to-bumper truck ...

W.W.Williams Company

Technical Trainer

Rialto, CA · On-site

$70K - $100K/yr

Observes trainees in the laboratory and answer trainees' questions. * Administer written and ... Its products and service offerings include diesel engines, transmissions, bumper-to-bumper truck ...

Universal Waste Systems

Mechanic

Perris, CA · On-site

$28 - $30/hr

... Trainees. * Participate in external, Department and Company-wide trainings to increase skill sets and improve service. Knowledge, Skills & Abilities Knowledge of: * Diesel and/or compressed natural ...

Universal Waste Systems

Mechanic

Perris, CA · On-site

$28 - $30/hr

... Trainees. * Participate in external, Department and Company-wide trainings to increase skill sets and improve service. Knowledge, Skills & Abilities Knowledge of: * Diesel and/or compressed natural ...

Quinn Company

Technical Instructor

Bakersfield, CA

$74K - $89K/yr

... equipment, diesel and natural gas engines. As a Caterpillar Dealership, Quinn Company enjoys a ... Observe trainees in classroom exercises and answers trainees' questions. Administers written and ...

Quinn Company

Technical Instructor

Bakersfield, CA

$74K - $89K/yr

... equipment, diesel and natural gas engines. As a Caterpillar Dealership, Quinn Company enjoys a ... trainees in classroom exercises and answers trainees' questions. • Administers written and ...

Quinn Company

Technical Instructor

Bakersfield, CA · On-site

$74K - $89K/yr

... equipment, diesel and natural gas engines. As a Caterpillar Dealership, Quinn Company enjoys a ... trainees in classroom exercises and answers trainees' questions. • Administers written and ...

County of Siskiyou

Heavy Equipment Mechanic

Yreka, CA · On-site

$53K - $68K/yr

... and diesel power driven equipment; and to do related work as required. DISTINGUISHING ... However, an incumbent may provide some guidance for "work experience" trainees assigned who assist ...

Town of Mammoth Lakes

Fleet Manager

Mammoth Lakes, CA

$98K - $127K/yr

... Mechanics, Equipment Mechanic Trainee(s), and other assigned staff. Develop and apply ... Perform specialized maintenance and repairs on diesel equipment and hydraulic systems. Carry out ...

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Diesel Trainee information

What is a diesel trainee?

Diesel Trainees are entry-level workers who are learning the skills needed to become diesel mechanics or technicians. They typically work under the supervision of experienced professionals, assisting with the maintenance, repair, and inspection of diesel engines and heavy-duty vehicles. Their responsibilities may include basic diagnostics, cleaning parts, changing oil, and learning to use specialized tools. Diesel Trainees often participate in formal training programs or apprenticeships to gain hands-on experience and technical knowledge. This role serves as a starting point for a career in diesel technology.

What are the typical responsibilities and learning opportunities for a diesel trainee?

As a Diesel Trainee, your first year typically involves hands-on learning under the supervision of experienced diesel mechanics. You’ll assist with routine maintenance, engine diagnostics, and basic repairs on diesel-powered vehicles and equipment. You'll also be introduced to safety protocols, use of specialized tools, and proper documentation procedures. This entry-level role is designed to build foundational skills, and many employers offer formal training programs or mentorship to help you progress toward becoming a certified diesel technician.

What are the key skills and qualifications needed to thrive as a diesel trainee?

To thrive as a Diesel Trainee, you need a basic understanding of diesel engine mechanics, troubleshooting, and maintenance, often supported by a high school diploma or technical coursework in automotive technology. Familiarity with diagnostic tools, repair manuals, and safety equipment is typically required, while certifications like ASE can be advantageous. Strong attention to detail, eagerness to learn, and good communication skills help trainees adapt and collaborate effectively with experienced technicians. These skills and qualities are crucial for developing technical expertise and ensuring safe, efficient service in diesel engine repair environments.

What is the difference between Diesel Trainee vs Diesel Mechanic?

AspectDiesel TraineeDiesel Mechanic
CertificationsBasic technical training, entry-level certificationsAdvanced certifications, specialized training
Work EnvironmentTraining sites, workshops, on-the-job learningRepair shops, service centers, fieldwork
Job ResponsibilitiesLearning diagnostics, assisting in repairsPerforming repairs, diagnostics, maintenance
Experience LevelEntry-level, in training phaseExperienced, skilled technician

The Diesel Trainee role is an entry-level position focused on learning and gaining skills under supervision, while a Diesel Mechanic is a fully qualified professional responsible for diagnosing and repairing diesel engines. Trainees typically undergo training programs, whereas mechanics have hands-on experience and certifications. Both roles are essential in the diesel industry, but they differ in responsibility and expertise level.

What are the most commonly searched types of Diesel jobs in California?

The most popular types of Diesel jobs in California are:

What cities in California are hiring for Diesel Trainee jobs?

Cities in California with the most Diesel Trainee job openings:

Diesel Trainee jobs near you
Infographic showing various Diesel Trainee job openings in California as of June 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Diesel Mechanic

Waste Connections

San Luis Obispo, CA • On-site

$32 - $43/hr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 5 days ago

Waste Connections rating

7.4

Company rating: 7.4 out of 10

Based on 264 frontline employees who took The Breakroom Quiz

29th of 91 rated recycling and waste

Job description

San Luis Garbage, a Waste Connections company, is now hiring for a safety conscious Diesel Mechanic to join the team at our Hauling location in San Luis Obispo, CA!
Pay Range: $32.00 - $43.00 per hour (based on experience and qualifications)
Schedule: Tuesday to Saturday
  • Tuesday-Thursday: 1pm-9:30pm
  • Friday: 12pm-8:30pm
  • Saturday: 6am-2:30pm

Why Work With Us?
  • Competitive Pay: Regular wage increases to reward your hard work.
  • Family Benefits: Comprehensive benefits package for you and your family.
  • Stability: Enjoy year-round work with a reliable company.

Responsibilities:
  • Perform routine maintenance such as oil changes, plus repairs on engines, chassis, body components, hydraulic cylinders, brake systems, suspension systems, cooling systems, wheels, and tires.
  • Inspect equipment and trucks for condition, operations, parts, and fluid levels.
  • Perform 90 day DOT inspections.
  • Diagnose and repair hydraulics and aftertreatment systems.
  • Utilize vehicle computer electronics systems for diagnostics.
  • Conduct safety checks on vehicles and equipment.
  • Complete paperwork using fleet maintenance software.
  • Review and assign repairs from Driver Vehicle Inspection Reports.
  • Manage a team of trainees and collaborate with other diesel mechanics.
  • Demonstrate strong time management, organization, problem-solving, and customer service skills.
  • Manage repairs of electrical and mechanical components and routine maintenance.
  • Maintain a current CDL license to test drive and deliver as needed.
  • Specialize in Cummins and Paccar engines.
  • Keep a log of repair history in the computer system.
  • Maintain equipment in clean and working condition.
  • Follow corporate and OSHA standards for a clean, safe work area.

Qualifications:
  • 3+ years of diesel mechanic experience.
  • Tool set, tool box, and proper personal safety equipment.
  • Basic computer skills and ability to learn diagnostic software.
  • Class B CDL or ability to obtain within 90 days.
  • Welding experience is a plus.

To be considered for any of our current openings you must complete an application at www.wasteconnections.com. Application information and additional instructions can be found once you select your position of interest.
We offer excellent benefits including medical, dental, vision, flexible spending account, long term & short-term disability, life insurance, 401K retirement and unlimited opportunities to "Connect with Your Future".
Waste Connections is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to disability or protected veteran status.
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