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Car Modification Jobs in California (NOW HIRING)

This is a classification performing skilled, repair and modification on all electronic and electro ... Records all findings accurately in provided Test Reports, for inclusion into Car History Books that ...

SALES ADVISOR

Fremont, CA ยท On-site

$20 - $30/hr

... car geeks to help match our customer base with the right 034Motorsport products for their builds ... modification culture. * Prior experience in a customer-facing sales, sales support, or customer ...

Manager, Engineering

Irvine, CA ยท On-site

$133K - $223K/yr

... parking, car charging stations, shuttle service for train commuters, outdoor games like bocce ... fabrication, modification and evaluation of new or existing software solutions or products.

Clinician - Annenberg Access Center

Santa Monica, CA ยท On-site

$61K - $80K/yr

... and modification for future program improvements and growth. * Assist members with becoming ... Valid CA Driver's license, reliable car, auto insurance, and an acceptable driving record * Able to ...

Clinician - Annenberg Access Center

Santa Monica, CA ยท On-site

$61K - $80K/yr

... and modification for future program improvements and growth. * Assist members with becoming ... Valid CA Driver's license, reliable car, auto insurance, and an acceptable driving record * Able to ...

Paralegal

Lake Forest, CA ยท On-site

$80K - $90K/yr

Assists with the preparation, review, and modification of legal documents, including communications ... Free Car Wash every other week * Free catered lunch every other week * A fun work environment!

Paralegal

Irvine, CA

$80K - $90K/yr

Assists with the preparation, review, and modification of legal documents, including communications ... Free Car Wash every other week * Free catered lunch every other week * A fun work environment!

Paralegal

San Juan Capistrano, CA ยท On-site

$80K - $90K/yr

Assists with the preparation, review, and modification of legal documents, including communications ... Free Car Wash every other week * Free catered lunch every other week * A fun work environment!

Showing results 21-40

Car Modification information

See California salary details

$10

$15

$19

How much do car modification jobs pay per hour?

As of Sep 9, 2026, the average hourly pay for car modification in California is $15.96, according to ZipRecruiter salary data. Most workers in this role earn between $14.23 and $17.55 per hour, depending on experience, location, and employer.

What is a car modification?

A Car Modification job involves customizing, upgrading, or altering vehicles to enhance their performance, appearance, or functionality. Professionals in this field work on modifications such as engine tuning, suspension upgrades, body kits, paint jobs, and interior enhancements. They may specialize in specific areas like performance tuning, aesthetic customization, or off-road modifications. This job requires technical skills, creativity, and knowledge of automotive systems to ensure modifications comply with safety and legal standards.

What does a car modification do?

Professionals in car modification roles are involved in assessing customer requirements, designing modification plans, sourcing parts, and using specialized tools to install or upgrade components such as exhaust systems, suspension, or audio equipment. Daily tasks may also include diagnosing vehicle performance issues, performing quality checks, and documenting all work performed for warranty and compliance purposes. You'll often collaborate closely with other technicians and interact with clients to explain technical options or demonstrate completed work. The role requires a blend of technical skill and customer interaction, making each day varied and hands-on.

What are the key skills and qualifications needed to thrive in car modification, and why are they important?

To thrive in Car Modification, you need a solid understanding of automotive mechanics, electrical systems, and performance tuning, often backed by vocational training or relevant certifications. Familiarity with automotive diagnostic tools, specialized software for engine calibration, and hands-on experience with shop equipment are typically expected. Creative problem-solving, attention to detail, and strong customer service skills help professionals collaborate effectively with clients and teammates. These competencies ensure safe, high-quality modifications that meet client needs and industry standards.

How to get into car modification?

To get into car modification as a profession, gain knowledge of automotive systems, learn about customization techniques, and develop skills in using tools like wrenches and diagnostic equipment. Consider obtaining relevant certifications or training in automotive technology and start with small projects to build experience. Working in a workshop or garage can provide practical exposure to the industry.

What are popular job titles related to Car Modification jobs in California?

For Car Modification jobs in California, the most frequently searched job titles are:

What job categories do people searching Car Modification jobs in California look for?

The top searched job categories for Car Modification jobs in California are:

What cities in California are hiring for Car Modification jobs?

Cities in California with the most Car Modification job openings:

Infographic showing various Car Modification job openings in California as of September 2026, with employment types broken down into 29% Full Time, 68% Part Time, and 3% Contract. Highlights an 99% Physical, and 1% Remote job distribution, with an average salary of $33,198 per year, or $16 per hour.

Test Technician

Carson, CA โ€ข On-site

Woojin IS America, Inc
Railroad Rolling Stock Manufacturingย โ€ขย 11 - 50 employees

Other

Medical, Dental, Vision, Retirement, PTO

Posted 6 days ago


Job description

Test Technician


About Us

Woojin IS America, Inc. (WISA), headquartered in Santa Fe Springs, CA, is a fast-growing manufacturer specializing in electric equipment for rolling stock and light rail vehicles. We proudly serve North American customers with advanced technologies that deliver safe, reliable, and long-lasting transportation equipment.


Main Accountabilities

Core purpose: This is a classification performing skilled, repair and modification on all electronic and electro-mechanical systems and components found in transit light and heavy rail vehicles. Incumbents work independently according to accepted standards of the trade, supervisory direction, Company established procedures, practices, and specifications. Incumbents may also provide on-site trouble assessment, response and adjustment of revenue vehicles. This class of technicians work specifically to test, troubleshoot, and repair electro-mechanical and electronic systems and components found on transit revenue vehicles. Under general supervision, performs skilled, test, troubleshooting, repair, and modification to a variety of electronic and electro-mechanical equipment and components found in heavy and light rail vehicles; performs related work as assigned.


Main Tasks & Responsibilities:

  • Following a pre-established schedule, testing and adjustment of electronic, electrical and mechanical systems found on transit vehicles. Including those associated with propulsion, train control, pneumatic supply and brake control, air conditioning, annunciation, communications, door control, lighting, and auxiliary electrical supply.
  • Troubleshoots and performs primary performance verification on such systems, removing and replacing components as required to achieve manufacturer specifications.
  • Records all findings accurately in provided Test Reports, for inclusion into Car History Books that follow each completed vehicle.
  • Performs modifications to rail vehicle electronic and electro-mechanical systems, as directed by engineering and supervisory staff.
  • Works with engineering and other production staff regarding modifications.
  • Uses diagnostic test equipment and precision measuring devices in the course of the work; may fabricate new testing equipment as required for use on new components and systems.
  • Performs secondary dismantling and repair of electronic and electro-mechanical systems.
  • Verifies performance of new or modified systems or equipment.
  • Works closely with transit vehicle mechanics in troubleshooting problems and performing primary repairs.
  • Reads and interprets diagrams, engineering drawings, manuals, schematics and work orders.
  • Measures, tests and inspects completed work to confirm adherence to specifications.
  • Documents work performed and parts and materials used; follows specified safety procedures.


Job Skills, Experience and Qualifications

  • 2+ yrs experience, desired in light rail or Aviation environment.
  • Experience in low and high voltage (VDC), medium voltage (VAC) and relay logic.
  • Experience in the use of test related equipment i.e., digital multi meters, pneumatic gauges, current probes etcโ€ฆ.
  • Must own and maintain a basic hand tool set.
  • Experience in precision measuring equipment i.e., caliper, micrometer, pie tape, etcโ€ฆ.
  • Experience in electrical crimp and mechanical torque techniques.
  • Must have experience working within and maintaining a safe work environment.
  • Experience with working in diverse and busy team environments.
  • Must speak, read and write English.
  • High School graduate or equivalent.
  • College/Technical trade education is preferred.
  • Ability to read drawings, blueprints and diagrams.
  • Strong analytical and problem-solving skills.
  • Ability to prioritize and work well under pressure and against deadlines.
  • Excellent interpersonal skills in a team environment.
  • Must be able to read and understand work orders.
  • Must be able to read and perform procedures.
  • Must be able to diagnose and make various electrical & mechanical adjustments using provided procedures.
  • Attention to quality control and customer service.
  • Computer skills must include at least basic levels for MS Word and Excel.
  • Ability to lift up to 30 to 50 lbs.


QUALIFICATIONS:

  • Diagnosing and repairing operational problems in a variety of electronic and electro-mechanical systems, components and equipment.
  • Performing modifications to electronic systems and components.
  • Reading and interpreting engineering drawings, diagrams, manuals and work orders.
  • Using and maintaining hand and power tools and testing equipment of the trade.
  • Understanding and following oral and written directions.
  • Maintaining accurate records of work performed and materials used.
  • Establishing and maintaining effective working relationships with those contacted in the course of the work.
  • Basic operating principles of analog and digital electronics, electrical and electronic circuitry, and associated mechanical mechanisms, methods, equipment and materials used in the primary maintenance and repair of a variety of electronic and electro-mechanical systems, components and equipment.
  • Use and care of testing and power and hand tools of the trade.
  • Troubleshooting and diagnostic techniques.
  • Shop arithmetic as required for the trade.
  • Safety practices pertaining to the work.


PHYSICAL DEMANDS:

  • While performing the duties of this job, the employee is frequently required to walk. The employee occasionally is required to stand; sit; use hands to finger, handle, or feel objects, tools, or controls; reach with hands and arms; climb or balance; stoop, kneel, crouch, or crawl; and talk or hear.
  • The employee must regularly lift and/or move up to 10 pounds, frequently lift and/or move up to 40 pounds, and occasionally lift and/or move up to 75 pounds.

WORK ENVIRONMENT:

  • This position works in a warehouse/production environment. The employee occasionally works near moving mechanical parts. The noise level in the work environment is usually loud.
  • The performance of this position requires exposure to the manufacturing areas where certain areas require.


Benefits:


  • Health Benefits: Medical, Dental, Vision, Short-Term Disability, and Critical Illness coverage
  • Paid Time Off: Vacation, Sick Leave, Bereavement, and Paid Holidays
  • Retirement Plan: 401(k) Plan with Company Match