Diesel Mechanic Jobs in California
Diesel Mechanic jobs in California are concentrated in Los Angeles, the Inland Empire, and the San Francisco Bay Area, where freight logistics, public transit fleets, and heavy construction keep demand strong across experience levels from entry-level lube technicians to master diesel technicians. Major employers with a lasting California footprint include Ryder System, Penske Truck Leasing, and the Los Angeles County Metropolitan Transportation Authority, all of which maintain large service operations that hire consistently. The most in-demand specialties are emissions diagnostics, heavy construction equipment, and commercial truck drivetrain repair, with California's strict CARB standards making emissions-certified technicians especially sought after. Find a role that fits below and apply directly.
Find Diesel Mechanic JobsOverview
Showing 4 of 90+ Diesel Mechanic jobs
Job Overview
This role is vital in maintaining the efficiency, safety, and reliability of a diverse fleet and heavy machinery. The ideal candidate will possess strong mechanical expertise, leadership skills, and a passion for delivering exceptional service.
Duties
- Coordinate the daily activities of the shop, ensuring timely completion of repairs and maintenance tasks
- Perform complex diagnostics and repairs on heavy equipment, farm machinery, industrial equipment, and automotive systems including transmissions, hydraulics, suspension, HVAC, and diesel engines
- Manage inventory levels for parts, tools, and supplies; order replacements as needed to minimize downtime
- Conduct quality control inspections on completed repairs to ensure safety standards and manufacturer specifications are met
- Oversee shop safety protocols, enforce proper use of hand tools, power tools, and heavy lifting procedures
- Provide excellent customer service by communicating repair needs clearly and offering technical guidance to clients or internal teams
Experience
- Proven mechanic experience with a strong background in heavy equipment operation, automotive diagnostics, and vehicle maintenance
- Skilled in reading schematics and technical manuals for troubleshooting complex mechanical issues
- Hands-on experience with welding, soldering, fabrication, and assembly of various machinery components
- Knowledge of electrical systems including automotive electrical diagnostics and service technician practices
- Ability to operate power tools safely while performing repairs involving shocks & struts, brakes, alignments, air brakes, tires service, HVAC systems, and suspension components
- Strong leadership skills with prior experience managing a team of technicians or service staff in a fast-paced environment
- Excellent communication skills coupled with customer service aptitude to explain technical issues clearly
Join us as our Lead Mechanic! Bring your mechanical expertise and leadership skills to ensure our fleet remains reliable while fostering a collaborative work environment. We value safety first while delivering top-tier service—your skills will make a difference every day!
Pay: $80,000.00 - $95,000.00 per year
Benefits:
- 401(k)
- Dental insurance
- Health insurance
- Paid time off
- Vision insurance
Work Location: In person
Job Overview
This role is vital in maintaining the efficiency, safety, and reliability of a diverse fleet and heavy machinery. The ideal candidate will possess strong mechanical expertise, leadership skills, and a passion for delivering exceptional service.
Duties
- Coordinate the daily activities of the shop, ensuring timely completion of repairs and maintenance tasks
- Perform complex diagnostics and repairs on heavy equipment, farm machinery, industrial equipment, and automotive systems including transmissions, hydraulics, suspension, HVAC, and diesel engines
- Manage inventory levels for parts, tools, and supplies; order replacements as needed to minimize downtime
- Conduct quality control inspections on completed repairs to ensure safety standards and manufacturer specifications are met
- Oversee shop safety protocols, enforce proper use of hand tools, power tools, and heavy lifting procedures
- Provide excellent customer service by communicating repair needs clearly and offering technical guidance to clients or internal teams
Experience
- Proven mechanic experience with a strong background in heavy equipment operation, automotive diagnostics, and vehicle maintenance
- Skilled in reading schematics and technical manuals for troubleshooting complex mechanical issues
- Hands-on experience with welding, soldering, fabrication, and assembly of various machinery components
- Knowledge of electrical systems including automotive electrical diagnostics and service technician practices
- Ability to operate power tools safely while performing repairs involving shocks & struts, brakes, alignments, air brakes, tires service, HVAC systems, and suspension components
- Strong leadership skills with prior experience managing a team of technicians or service staff in a fast-paced environment
- Excellent communication skills coupled with customer service aptitude to explain technical issues clearly
Join us as our Lead Mechanic! Bring your mechanical expertise and leadership skills to ensure our fleet remains reliable while fostering a collaborative work environment. We value safety first while delivering top-tier service—your skills will make a difference every day!
Pay: $80,000.00 - $95,000.00 per year
Benefits:
- 401(k)
- Dental insurance
- Health insurance
- Paid time off
- Vision insurance
Work Location: In person
See All 90 Diesel Mechanic Jobs in California
Find roles in California that match your experience and apply in just a few clicks.
Find Diesel Mechanic JobsDiesel Mechanic Jobs by City in California
Where California roles are concentrated, by current openings.
Diesel Mechanic Job Market in California
A snapshot from current California openings, updated as new roles post.
Who's Hiring
- Cox Automotive11
- Rush Enterprises11
- Cox Fleet (Part of Cox Enterprises)10
- United Rentals8
- Reyes Fleet Management5
Top Industries Hiring
- Staffing & Recruiting
What California Employers Look For
The qualifications that appear most often in diesel mechanic jobs across California.
- ASE diesel certification or active enrollment in ASE testing strongly preferred by California employers
- Valid California Class A or Class B commercial driver license for fleet testing roles
- Two or more years of hands-on experience with medium- or heavy-duty diesel engines
- Proficiency with diagnostic software such as Cummins Insite, Detroit Diagnostic Link, or Delphi DS
- Ability to perform smog and emissions inspections compliant with California Air Resources Board standards
- Own hand tools and willingness to work shifts including nights or weekends in fleet environments
Diesel Mechanic Jobs in California: Frequently Asked Questions
How do you become a diesel mechanic in California?
Start with a certificate or associate degree in diesel technology from a California community college such as Fresno City College, Rio Hondo College, or Citrus College, which offer programs aligned with industry standards. California does not require a state-issued diesel mechanic license, but earning ASE certification in medium and heavy truck is the most widely recognized credential among California employers. A California Class A or Class B commercial driver license strengthens candidacy for fleet technician roles.
Which companies hire diesel mechanics in California?
Companies currently hiring diesel mechanics in California include Cox Automotive, Rush Enterprises, and Cox Fleet (Part of Cox Enterprises), per current listings on Migrate Mate as of November 2026. California's large freight corridors, public transit agencies, and construction sectors mean both private fleet operators and public employers post diesel mechanic openings year-round.
Which California cities have the most diesel mechanic jobs?
The cities with the most diesel mechanic openings in California are San Jose, Fontana, and Stockton. The distribution reflects California's freight and logistics infrastructure, with the Inland Empire and Los Angeles Basin anchored by major distribution centers, port operations, and transit agencies, while the Bay Area and Central Valley support agricultural equipment and regional fleet maintenance hubs.
Are there remote diesel mechanic jobs in California?
Yes, but they're rare. About 4% of diesel mechanic openings tied to California are remote or hybrid as of November 2026, given the hands-on nature of the work. The portions of the role most compatible with remote arrangements include service advisor coordination, parts procurement, and warranty documentation for technicians who have moved into supervisory or support positions.
How can I get hired as a diesel mechanic in California with little or no experience?
The most realistic entry path is a lube technician or service technician helper role at a California fleet operation or dealership, where on-the-job training is common. Ryder and Penske both run structured technician apprenticeship programs at their California service centers. Completing a diesel technology certificate at a California community college and passing even entry-level ASE tests demonstrates commitment and gives candidates a measurable edge over applicants without credentials.
Where can I find and apply to diesel mechanic jobs in California?
You can find and apply to diesel mechanic jobs in California on Migrate Mate, which lists current California openings updated regularly. Find the roles that fit your experience and location and apply directly to the employers posting them.
See All 90 Diesel Mechanic Jobs in California
Find roles in California that match your experience and apply in just a few clicks.
Find Diesel Mechanic Jobs