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Diesel Generator Maintenance Jobs in California (NOW HIRING)

Telvero

Generator Technician

Woodland, CA · On-site

$35 - $45/hr

Generator Technician * Location: Woodland, CA - Home most nights, Supports planned maintenance and ... Perform preventive maintenance, inspections, troubleshooting, and repairs on diesel generators and ...

New

Bemana, LLC

Generator Technician

Fremont, CA · On-site

$40 - $55/hr

Our client is seeking a skilled Generator Technician 3 with advanced experience diagnosing, repairing, and maintaining diesel, natural gas, and propane generators, as well as automatic transfer ...

Isuzu Veterans Apprenticeship Program (IVAP)

Diesel mechanics * Heavy equipment maintenance * Automotive repair * Aircraft maintenance ... Generator maintenance * Fleet maintenance * Military maintenance supervision Requirements

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Diesel Generator Maintenance information

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$9

$21

$49

How much do diesel generator maintenance jobs pay per hour?

As of Aug 22, 2026, the average hourly pay for diesel generator maintenance in California is $21.91, according to ZipRecruiter salary data. Most workers in this role earn between $15.19 and $24.42 per hour, depending on experience, location, and employer.

What is diesel generator maintenance?

A Diesel Generator Maintenance job involves inspecting, servicing, and repairing diesel-powered generators to ensure they operate efficiently and reliably. Technicians perform routine maintenance tasks such as oil and filter changes, coolant checks, battery inspections, and troubleshooting mechanical or electrical issues. They also diagnose faults, replace worn-out components, and test the generator under load conditions to verify performance. Regular maintenance helps prevent breakdowns and extends the lifespan of the equipment. This role is essential in industries that rely on backup or primary power sources, such as hospitals, construction sites, and data centers.

What are the typical daily responsibilities of someone in diesel generator maintenance?

A professional in Diesel Generator Maintenance spends their days inspecting, servicing, and repairing diesel generators to ensure reliable performance. This involves routine checks of fuel, oil, and cooling systems; troubleshooting issues using diagnostic tools; and performing preventative maintenance according to schedules or operational needs. You may work both independently and as part of a maintenance team, often collaborating with electricians, facility managers, or other technical staff. The role may also require responding to emergency calls or off-hours maintenance, particularly in environments where generator reliability is critical, such as hospitals or data centers.

What are the key skills and qualifications needed to thrive in diesel generator maintenance, and why are they important?

To excel in Diesel Generator Maintenance, you need a strong background in mechanical and electrical systems, formal technical training, and hands-on experience with diesel engines. Familiarity with diagnostic tools, maintenance software, and OSHA safety certifications are typically required. Attention to detail, problem-solving abilities, and effective communication are crucial soft skills in this field. These competencies are essential to ensuring reliable generator operation, minimizing downtime, and maintaining safety standards.

Are diesel generator maintenance technicians in demand?

Diesel generator maintenance technicians are in demand due to the ongoing need for reliable backup power in various industries. Employment opportunities are expected to grow as companies prioritize maintenance of critical power systems and require skills in troubleshooting, repairs, and preventive maintenance. Certifications and technical knowledge can enhance job prospects in this field.

How to become a diesel generator maintenance technician?

To become a diesel generator maintenance technician, individuals typically need a high school diploma or equivalent, followed by technical training or an apprenticeship in diesel engine repair or electrical systems. Certification such as the National Institute for Automotive Service Excellence (ASE) or manufacturer-specific certifications can enhance job prospects, and hands-on experience with generator systems is highly valuable.

What are popular job titles related to Diesel Generator Maintenance jobs in California?

For Diesel Generator Maintenance jobs in California, the most frequently searched job titles are:

What job categories do people searching Diesel Generator Maintenance jobs in California look for?

The top searched job categories for Diesel Generator Maintenance jobs in California are:

Diesel Generator Maintenance jobs near you
Infographic showing various Diesel Generator Maintenance job openings in California as of August 2026, with employment types broken down into 1% As Needed, 85% Full Time, 11% Part Time, 2% Contract, and 1% Nights. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $45,574 per year, or $21.9 per hour.

Generator Technician

Superior Electrical Mechanical

Anaheim, CA • On-site

$35 - $45/hr

Full-time

Medical, Retirement, PTO

Posted 14 days ago

Job description

Description:

Superior Electrical, Mechanical, and Plumbing, Inc. (SEMP) is a statewide provider of commercial skilled trade services with over 20 years of experience delivering reliable electrical, mechanical, and plumbing solutions. We are seeking an experienced Generator Technician to support our Southern California division. Technicians may begin their service routes from their home address.


The ideal candidate will have at least eight years of recent, hands-on experience performing generator preventive maintenance and repairs, along with strong commercial electrical knowledge related to stationary generators and their optimal performance.


Schedule

  • Monday through Friday
  • Travel opportunities
  • Overtime available but not guaranteed

Responsibilities

  • Visually inspect and diagnose issues with natural gas and/or gasoline-powered standby commercial generators
  • Perform routine maintenance tasks, including oil changes, filter replacements, battery replacements, and servicing of belts, spark plugs, and other mechanical components
  • Demonstrate knowledge and experience with CAT, Cummins, Generac, Kohler, or Detroit Diesel generator systems
  • Demonstrate working knowledge of both DC and AC voltage systems
  • Troubleshoot and service Automatic Transfer Switches (ATS) with proficiency
  • Conduct load bank testing to ensure generator performance under load
  • Educate end users on proper generator operation and basic maintenance procedures
  • Provide service and repair recommendations to maintain equipment in optimal working condition
  • Read and interpret technical manuals, schematics, and wiring diagrams
  • Operate a company vehicle and complete fleet maintenance reports as required
  • Maintain accurate records of all inspections, maintenance, and repair work performed
  • Communicate effectively with management, team members, and clients to ensure clear understanding of service needs and solutions
Requirements:
  • Minimum of eight years of recent experience performing commercial generator maintenance
  • Basic understanding of NFPA 70E, OSHA regulations, and general electrical safety practices
  • Ability to pass a pre-employment drug test and motor vehicle background check
  • Proficient English communication skills, both written and verbal, for preparing reports and emails
  • Must possess personal hand tools required to perform mechanical work and voltage testing
  • Willingness to commute to various job sites using company vehicles within Orange County, Los Angeles County, and/or the Inland Empire
  • Ability to work independently as well as collaboratively within a team environment

About the Company

Superior Electrical, Mechanical & Plumbing, Inc. is a commercial service and construction company with over 20 years of experience delivering high-quality electrical and plumbing solutions across California and other states. Our team is committed to reliability, safety, and strong customer partnerships while supporting projects that keep businesses and facilities running efficiently.


Benefits

Superior EMP offers competitive compensation and a benefits package that includes:

  • Medical insurance
  • Employee-only 401(k) retirement contributions
  • Supplemental insurance options
  • Paid sick leave and vacation time
  • Opportunities for professional development and career growth

Superior Electrical, Mechanical, and Plumbing, Inc. does not accept unsolicited resumes or outreach from third-party recruiters or agencies. Unsolicited emails, calls, or submissions will not be considered.