Diesel Technician Jobs in California
Diesel Technician jobs in California are among the most active in the country, driven by the state's massive freight and logistics sector, municipal fleets, agriculture operations in the Central Valley, and construction activity across the state. Most hiring concentrates in Los Angeles, the Inland Empire, and Sacramento, where major employers like Penske Truck Leasing, Ryder System, and the California Department of Transportation maintain significant fleets and service operations. Demand runs from entry-level lube technicians through senior diesel specialists, with the strongest need in heavy-duty truck repair, refrigerated transport systems, and emissions diagnostics. Find a role that fits below and apply directly.
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INTRODUCTION
First Student is now hiring a Lead Diesel Technician for our shop serving Lamorinda, Traffic, and Seven Hills School District in Concord, CA!
Hours/Schedule: Monday-Friday, Full-time day shift, 5:30 am - 2:30 pm
As a Lead Diesel Technician, you will ensure every vehicle runs safely, efficiently, and reliably - keeping our communities moving with confidence.
Why join First as a Lead Diesel Mechanic?
- Pay Details: Dependent on experience and qualifications.
- Hourly Rate: $41.55 - $44.40 per hour (NOT flat rate).
- Bonus rate increase available for each ASE School Bus Series test passed and maintained (up to $2/hour more).
- Monday-Friday day shift schedule with consistent, year-round work.
- Company-paid ASE testing and training materials.
- Company-paid CDL Class B training and licensing.
- Career Advancement Opportunities: Advance into operational, maintenance, management, and leadership roles in over 540 locations across the U.S. & Canada!
- Excellent benefits including medical, dental, vision, & 401(k).
- Paid holidays and vacation time.
- Annual allowances for boots and prescription safety glasses.
- State-of-the-art training programs.
- Discounts on cell phone plans, cars, and more through the Perk Spot program!
- Employee Assistance Program (EAP): Counseling and support services for personal and work-related issues.
- Access to earned wages before payday through Chime® MyPay at Work™
- Salt® Rewards Program for employee savings and rewards
ABOUT THE ROLE
As a Lead Diesel Technician at First Student, you will help deliver excellence by leading the comprehensive preventive maintenance program, providing ongoing technician development, and streamlining operational practices.
Other job duties include:
- Oversee complex vehicle diagnostics and repairs; perform road tests when needed.
- Maintain advanced knowledge of engines, emissions, transmissions, brakes, hydraulics, electrical, and HVAC systems for preventive and repair maintenance.
- Supervise shop technicians, conduct daily huddles, training, performance evaluations, and assist with hiring decisions.
- Manage inventory control, approve expenses within scope, schedule fleet maintenance, and ensure compliance with safety regulations.
- Conduct inspections, monitor performance, and maintain adherence to federal/state standards.
- Work closely with management on maintenance status, budgets, and special projects.
- Participate in ASE certification program.
- Perform hands-on work activities as needed.
LEAD DIESEL TECHNICIAN QUALIFICATIONS
- At least 5 years of diesel or automotive maintenance & repair experience or technical school education.
- Previous experience in a lead technician, supervisor, or other management role is preferred.
- Valid driver's license required; Willingness to obtain CDL while employed - Paid company training provided.
- Strong computer skills.
- Possess a mechanic's tool set.
- ASE certifications are preferred.
- Note: This position is subject to DOT drug testing as a safety-sensitive employee. DOT Regulation 49 CFR Part 40 does not authorize the use of Schedule I drugs, including marijuana, for any reason.
Take the wheel and drive your career forward with First Student! Make an impact in your community while enjoying day shift schedules, great pay, and unmatched support.
First for a reason:
At First Student, we are a family of 60,000+ employees who take pride in safely transporting more than 5 million students and passengers to and from their destinations each day! Our family of brands include Transco, Total Transportation, Maggies Paratransit, and GVC II. Our employees are at the forefront of safety and innovation; they create and implement the most advanced training and technology the transportation industry has to offer.
In the state of Washington, all technician and driving positions, including but not limited to van drivers and any other position requiring employees to drive a company-owned vehicle, are considered safety-sensitive and are therefore subject to drug and alcohol testing, including cannabis.
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. First is also committed to providing a drug-free workplace. First will consider for employment qualified applicants with criminal histories consistent with the requirements of the San Francisco Fair Chance Ordinance, Los Angeles Fair Chance Ordinance, and any other fair chance law. Philadelphia's Fair Criminal Record Screening Standards Ordinance Poster is at this link or upon request.
See All 18 Diesel Technician Jobs in California
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Find Diesel Technician JobsDiesel Technician Jobs by City in California
Where California roles are concentrated, by current openings.
Diesel Technician Job Market in California
A snapshot from current California openings, updated as new roles post.
Who's Hiring
- Hub4

- Diamond Environmental Services2

- Penske Truck Leasing2

- First Student1

- Indigo Auto1

Top Industries Hiring
- Transportation & Logistics8
- Automotive5
- Consulting & Professional Services2
- Construction & Real Estate1
- Education1
What California Employers Look For
The qualifications that appear most often in diesel technician jobs across California.
- ASE Medium/Heavy Truck certification or active progress toward ASE credentials required
- Valid California driver's license with clean driving record for road testing vehicles
- Hands-on experience diagnosing and repairing diesel engines, transmissions, and braking systems
- Proficiency with electronic diagnostic tools including Detroit Diesel DDDL and Cummins INSITE
- Working knowledge of California Air Resources Board emissions standards and compliance procedures
- Ability to supply personal hand tools meeting shop minimum tool requirements
Diesel Technician Jobs in California: Frequently Asked Questions
How do you become a diesel technician in California?
California does not require a state-issued license to work as a diesel technician, but ASE certification is the industry standard most employers require before or shortly after hiring. The typical path starts with a diesel technology program at a California community college such as those offered through the California Community Colleges system, followed by an apprenticeship or entry-level shop position. Earning ASE Medium/Heavy Truck certifications, particularly in engines and brakes, strengthens your candidacy significantly.
How much do diesel technicians make in California?
Diesel technicians in California earn a median of about $73,950 a year, based on May 2025 Bureau of Labor Statistics wage data, ranging from around $47,180 for the lowest 10% to over $96,730 for the top 10%. Pay rises with experience, specialty, and employer.
Which companies hire diesel technicians in California?
Employers hiring diesel technicians in California right now include Hub, Diamond Environmental Services, and Penske Truck Leasing, based on current listings on Migrate Mate as of June 2026. California's size and mix of freight corridors, public transit agencies, and agricultural equipment fleets means hiring is distributed across the state rather than concentrated with just a few names.
Which California cities have the most diesel technician jobs?
Stockton, Bloomington, and Yuba City have the most diesel technician openings in California right now. Los Angeles and the Inland Empire dominate because of the Port of Los Angeles and Port of Long Beach freight ecosystem along with the dense concentration of regional trucking hubs, while Sacramento draws demand from state fleet operations and Central Valley logistics activity.
Are there remote diesel technician jobs in California?
Yes, but they're rare. Diesel technician work is fundamentally hands-on and performed at a shop, yard, or job site, so most roles require full on-site presence. About 0% of diesel technician openings tied to California are remote or hybrid as of June 2026, and those positions typically involve remote diagnostics support, technical training, or fleet service coordination rather than bench repair work.
How can I get hired as a diesel technician in California with little or no experience?
The most realistic entry point is a lube technician or shop helper role at a fleet maintenance facility or truck dealership, where you learn under journeyman technicians while working toward ASE certification. Large California employers like Penske and Ryder run structured entry-level technician programs that accept candidates from diesel technology programs at California community colleges without prior shop experience. Completing even one ASE certification before applying, combined with your own basic hand tools, makes a meaningful difference in getting that first offer.
Where can I find and apply to diesel technician jobs in California?
You can find and apply to diesel technician jobs in California on Migrate Mate, which lists current openings across the state. Find roles that fit your experience level and location and apply directly to the employers posting them.
See All 18 Diesel Technician Jobs in California
Find roles in California that match your experience and apply in just a few clicks.
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