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Diesel Mechanic 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 ...

Estes Express Lines

Mechanic Trainee

West Sacramento, CA · On-site

$26.75 - $35.25/hr

The mechanic trainee is an entry level/step position with little to no experience and must operate under the guidance of experienced mechanics and/or Shop Management. If you are looking for a ...

Estes Express Lines

Mechanic Trainee

West Sacramento, CA · On-site

$26.75 - $35.25/hr

The mechanic trainee is an entry level/step position with little to no experience and must operate under the guidance of experienced mechanics and/or Shop Management. If you are looking for a ...

Universal Waste Systems

Mechanic

Perris, CA · On-site

$28 - $30/hr

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

Universal Waste Systems

Mechanic

Perris, CA · On-site

$28 - $30/hr

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

Town of Mammoth Lakes

Fleet Manager

Mammoth Lakes, CA · On-site

$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 ...

All JobsDiesel Mechanic JobsDiesel Mechanic Trainee JobsDiesel Mechanic Trainee Jobs in California

Diesel Mechanic Trainee information

See California salary details

$14

$27

$38

How much do diesel mechanic trainee jobs pay per hour?

As of Aug 29, 2026, the average hourly pay for diesel mechanic trainee in California is $27.90, according to ZipRecruiter salary data. Most workers in this role earn between $23.70 and $31.30 per hour, depending on experience, location, and employer.

What is a diesel mechanic trainee?

A Diesel Mechanic Trainee is an entry-level worker who is learning how to inspect, maintain, and repair diesel engines, commonly found in trucks, buses, and heavy equipment. Trainees work under the supervision of experienced diesel mechanics to gain hands-on experience and develop technical skills. Their duties often include assisting with routine maintenance, troubleshooting engine problems, and learning to use specialized tools and diagnostic equipment. Over time, trainees build the knowledge and experience needed to become fully qualified diesel mechanics.

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

To thrive as a Diesel Mechanic Trainee, you need a basic understanding of diesel engine systems, mechanical aptitude, and typically a high school diploma or equivalent. Familiarity with diagnostic tools, hand and power tools, and basic computer systems is often required, while entry-level certifications like ASE Student Certification can be beneficial. Strong attention to detail, willingness to learn, teamwork, and effective communication help trainees excel in hands-on environments. These skills and qualities are essential for maintaining safety, ensuring accurate repairs, and building a successful foundation for advancement in the field.

What types of support and training can a diesel mechanic trainee expect during the initial months on the job?

As a Diesel Mechanic Trainee, you can expect a structured onboarding process that includes hands-on training, shadowing experienced mechanics, and participating in safety briefings. Many employers provide mentorship programs where trainees work closely with senior technicians to learn diagnostic procedures, tool usage, and maintenance protocols. You'll likely receive ongoing feedback and may attend workshops or online courses to build foundational technical knowledge. This supportive environment is designed to help you gradually take on more complex tasks and develop confidence in your role.

What is the difference between Diesel Mechanic Trainee vs Diesel Mechanic?

AspectDiesel Mechanic TraineeDiesel Mechanic
CertificationsMay require basic ASE certifications or on-the-job trainingTypically requires ASE certifications and more advanced credentials
Work EnvironmentTraining environment, often in repair shops or garagesFull-time mechanic working on vehicles and equipment
Job ResponsibilitiesLearning repair procedures, assisting senior mechanicsPerforming repairs, diagnostics, and maintenance independently

In summary, a Diesel Mechanic Trainee is in the learning phase, focusing on gaining skills and certifications, while a Diesel Mechanic is a fully qualified professional performing repairs and maintenance independently.

How fast can you become a diesel mechanic trainee?

Becoming a diesel mechanic trainee can take a few weeks to a few months, depending on the program or employer requirements. Many trainees start after completing a high school diploma or equivalent, and some may pursue technical training or certifications that can accelerate their readiness for the role. Hands-on experience and familiarity with tools are also important for progressing quickly in this field.

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

The most popular types of Diesel Mechanic jobs in California are:

What are popular job titles related to Diesel Mechanic Trainee jobs in California?

For Diesel Mechanic Trainee jobs in California, the most frequently searched job titles are:

What job categories do people searching Diesel Mechanic Trainee jobs in California look for?

The top searched job categories for Diesel Mechanic Trainee jobs in California are:

What cities in California are hiring for Diesel Mechanic Trainee jobs?

Cities in California with the most Diesel Mechanic Trainee job openings:

Diesel Mechanic Trainee jobs near you
Infographic showing various Diesel Mechanic Trainee job openings in California as of August 2026, with employment types broken down into 91% Full Time, 6% Part Time, 1% Contract, and 2% Nights. Highlights an 99% Physical, and 1% Remote job distribution, with an average salary of $58,028 per year, or $27.9 per hour.

Diesel Mechanic

Waste Connections

San Luis Obispo, CA • On-site

$32 - $43/hr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 11 days ago

Waste Connections rating

7.4

Company rating: 7.4 out of 10

Based on 265 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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