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Operator Assistant Trainee Jobs in California (NOW HIRING)

$20/hr

CNC Machinist Trainee - Mill & Lathe Location: San Fernando Valley, CA Pay Rate: $20.00/hour Job ... operating or working around mill and lathe machines. Responsibilities * Assist with the daily ...

Train and assist junior operators or trainees on proper setup, operation, and safety procedures. * Support continuous improvement initiatives related to productivity, quality, and equipment ...

Train and assist junior operators or trainees on proper setup, operation, and safety procedures. * Support continuous improvement initiatives related to productivity, quality, and equipment ...

Train and assist junior operators or trainees on proper setup, operation, and safety procedures. * Support continuous improvement initiatives related to productivity, quality, and equipment ...

Showing results 21-40

Operator Assistant Trainee information

What is the difference between Operator Assistant Trainee vs Operator Assistant?

AspectOperator Assistant TraineeOperator Assistant
Required CredentialsHigh school diploma or equivalent; on-the-job trainingHigh school diploma or equivalent; experience preferred
Work EnvironmentTraining phase, supervised, safety-focusedFull-time, operational, hands-on
Employer & Industry UsageUtilities, manufacturing, transportationUtilities, manufacturing, transportation

The main difference is that the Operator Assistant Trainee is in a training phase, gaining skills under supervision, while the Operator Assistant has completed training and performs operational tasks independently. Both roles are common in industries like utilities and manufacturing, with the trainee position serving as a stepping stone to full responsibility.

What does an operator assistant trainee do?

An operator assistant trainee supports equipment operators by performing tasks such as inspecting machinery, assisting with maintenance, and ensuring safety protocols are followed. They typically learn on the job, may operate basic tools or equipment, and often need safety certifications or training to progress in the role.

What are popular job titles related to Operator Assistant Trainee jobs in California?

For Operator Assistant Trainee jobs in California, the most frequently searched job titles are:

What job categories do people searching Operator Assistant Trainee jobs in California look for?

The top searched job categories for Operator Assistant Trainee jobs in California are:

What cities in California are hiring for Operator Assistant Trainee jobs?

Cities in California with the most Operator Assistant Trainee job openings:

Infographic showing various Operator Assistant Trainee job openings in California as of August 2026, with employment types broken down into 1% As Needed, 75% Full Time, 21% Part Time, 1% Temporary, and 2% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution.

Lay Up Operator Trainee (86280)

THE GILL CORPORATION

El Monte, CA • On-site

$22.15 - $26.69/hr

Full-time

Posted 23 days ago


Job description

Who We Are:

The Gill Corporation is one of the world's largest manufacturers of honeycomb, high performance floor panels, cargo compartment liners and original equipment for passenger and freighter aircraft. The company also excels in many other types of reinforced plastics including interior sandwich panels for creating structures such as aircraft galleys and bulkheads, honeycomb core and related products.

The Gill Corporation is seeking a Lay Up Operator Trainee who can assist the Lay Up Operator to assemble precut material slices (Balsa, Aluminum, Nomex) into panels or liners.

Reporting to the Production Supervisor, they will perform but not be limited to the following responsibilities. 

Responsibilities: 

  • Reads the GPS prior to start of the work order.
  • Reviews work order for any Special Instructions.
  • Assists in the layup panels and liners per GPS.
  • Assist Layup Operator and follow their instructions in Setup, Assembly, Change Over of materials
  • Assist presses for loading and unloading.
  • Ensure that all materials used are within shelf-life requirements. 
  • Performs basic visual quality inspections on materials to ensure they are within spec
  • Reports any defective materials or questionable conditions to the Operator, Lead or Supervisor
  • Make sure that core inside the oven is the correct core for the work order.
  • Uses Micrometer to measure thickness of core to ensure it is within the tolerance
  • Utilize hand and power tools as needed to perform the duties
  • Maintain the work area and equipment in a clean and orderly condition.
  • Maintain a safe work environment
  • Other duties assigned by production supervisor or manager 

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Required Qualifications: 

  • Must have a high school diploma, GED or equivalency
  • 6 months to one year of experience in a fast-paced environment
  • Must be available to work any shift, over-time and weekends.
  • Must be able to work in a team environment, ie follow instructions
  • Bend, Twist, and Stand for 8-10 hours a day in extreme heat or cold
  • Use hands for simple and power grasping as well as push/pull and fine manipulation
  • Be willing to work in a manufacturing environment
  • Basic Math Skills: Addition, Subtraction, Multiplication and Division
  • Accurately uses and understands how to read a measuring tape
  • Effectively communicate information and respond to questions from various levels of the organization
  • Acceptable Spirometry Test results (full/ half respirator use).
  • Must be able to lift, push and pull a minimum of 50 lbs.

PLEASE NOTE: Certain positions may require the ability to obtain and maintain a DOD Secret Clearance.

ITAR Requirement: 

This position requires access to information that is subject to compliance with the International Traffic Arms Regulations (“ITAR”) and/or the Export Administration Regulations (“EAR”). In order to comply with the requirements of the ITAR and/or the EAR, applicants will be asked to provide specific documentation to verify U.S. person status under the ITAR and the EAR. A “U.S. person” according to their definition is a U.S. citizen, U.S. lawful permanent resident (green card holder), or protected individual such as a refugee, or asylee.

The Gill Corporation is an Equal Opportunity Employer. Applicants for all job openings are welcome and will be considered without regard to race, religious creed, color, age, sex, gender identity, gender expression, genetic information, sexual orientation, national origin, religion, marital status, medical condition, physical or mental disability, military service, veteran status, pregnancy, childbirth and related medical conditions, or any other classification protected by federal, state, and local laws and ordinances.

The Gill Corporation provides reasonable accommodations to qualified individuals with disabilities in accordance with the Americans with Disability Act and applicable state and local law. If you require an accommodation in the application process, please notify the Human Resources Department