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Machine Operator Assistant Jobs in Ontario, CA (NOW HIRING)

Kinetic Personnel Group

Machine Operator

Riverside, CA · On-site

$17.75 - $21.25/hr

Production Machine Operator Job Summary The Production Machine Operator is responsible for ... Follow all safety procedures, PPE requirements, and company policies. Assist with machine ...

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J & L Custom Plastic Extrusions, Inc.

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Machine Operator

City Of Industry, CA · On-site

$16.50 - $20/hr

The Machine Operator maintains operations in the production of customer product to be shipped. The ... Retrieve material from the warehouse as needed. * Assist with loading trucks with materials and ...

iStaffing

Machine Operator

Buena Park, CA · On-site

$19 - $21/hr

Maintain a clean and organized work area * Assist with machine changeovers and routine cleaning when needed Qualifications 1-2 years of machine operating experience in a manufacturing or production ...

J & L Custom Plastic Extrusions, Inc.

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Machine Operator

City Of Industry, CA · On-site

$16.50 - $20/hr

The Machine Operator maintains operations in the production of customer product to be shipped. The ... Retrieve material from the warehouse as needed. * Assist with loading trucks with materials and ...

People First Employment

Machine Operator

Chino, CA · On-site

$18/hr

Identify and escalate mechanical or operational issues to maintenance or supervisors. * Assist with ... Prior experience as a machine operator in a food manufacturing or similar environment preferred.

Calmont Wire & Cable

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Machine Operator

Santa Ana, CA · On-site

$18 - $23/hr

... Assist manufacturing personnel from other departments Ø Perform appropriate duties as assigned by management Ø Interface with QA for workmanship and quality requirements Ø Maintain and ...

STANDARD ELECTRIC

Machine Operator

Jurupa Valley, CA

$17.25 - $20.50/hr

Function: The Machine operator is responsible for all aspects of Operating different types of ... Operate Machinery to assist in the production process * Produce material at a productive rate.

Tree Island Steel

Machine Operator

San Bernardino, CA · On-site

$18 - $20/hr

Job Summary The Machine Operator - Collator/Packer is responsible for operating and maintaining ... Maintain a clean and safe work environment General Duties * Assist other operators as required * Be ...

American Wire Group

Machine Operator

Perris, CA · On-site

$17.25 - $20.75/hr

Report to work on time and ready to assist with warehouse activities. * Comply with company ... machinery before operating it. * Perform those physical requirements necessary to lift and move ...

Key Skilled Personnel

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Machine Operator - Entry Level

Pomona, CA · On-site

$18/hr

Machine Operator I, Entry Level Location: Pomona, CA Job Type: Full-Time, Non-Exempt Shift: 2nd ... Report unsafe conditions and product-quality issues immediately. * Assist in other production areas ...

Aguinaga Green Inc

Heavy Machine Operator

Silverado, CA · On-site

$18 - $25/hr

Handle materials, including loading and unloading items from trucks or storage areas. Assist in operating machinery as needed for production tasks. Collaborate with team members to maintain a clean ...

Aguinaga Green Inc

Heavy Machine Operator

Silverado, CA · On-site

$18 - $25/hr

Handle materials, including loading and unloading items from trucks or storage areas. Assist in operating machinery as needed for production tasks. Collaborate with team members to maintain a clean ...

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All JobsMachine Operator JobsMachine Operator Assistant JobsMachine Operator Assistant Jobs in Ontario, CA

Machine Operator Assistant information

See Ontario, CA salary details

$13

$18

$22

How much do machine operator assistant jobs pay per hour?

As of Aug 23, 2026, the average hourly pay for machine operator assistant in Ontario, CA is $18.56, according to ZipRecruiter salary data. Most workers in this role earn between $16.15 and $19.28 per hour, depending on experience, location, and employer.

What is a machine operator assistant?

Machine Operator Assistants support machine operators by preparing materials, monitoring equipment, and ensuring a smooth production process in manufacturing environments. Their tasks often include loading and unloading materials, cleaning machines, inspecting products for quality, and assisting with machine maintenance. They help maintain efficiency and safety in the workplace and may also document production data or report equipment issues. This role is key for keeping manufacturing lines running smoothly and efficiently.

What are the key skills and qualifications needed to thrive as a machine operator assistant, and why are they important?

To thrive as a Machine Operator Assistant, you need basic mechanical aptitude, attention to detail, and a high school diploma or equivalent. Familiarity with manufacturing machinery, safety protocols, and the ability to use measuring tools or computer systems is often required. Reliability, effective communication, and the ability to work well in a team are standout soft skills for this role. These skills ensure safe, efficient machine operation and help maintain smooth production processes in manufacturing environments.

What are some common challenges faced by a machine operator assistant, and how can they be overcome?

Machine Operator Assistants often encounter challenges such as adapting to fast-paced production environments, ensuring safety compliance, and minimizing machine downtime. To overcome these, it's important to stay attentive to operational protocols, communicate effectively with machine operators and team members, and proactively report any equipment issues. Continuous learning and on-the-job training can also help assistants rapidly build the skills necessary to troubleshoot minor problems and contribute to a smooth workflow.

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

AspectMachine Operator AssistantMachine Operator
CredentialsHigh school diploma or equivalent; some technical trainingHigh school diploma; technical certifications often preferred
Work EnvironmentAssists in manufacturing or production settings, working alongside machine operatorsOperates machinery directly in manufacturing or industrial environments
Job ResponsibilitiesSupports machine operation, performs basic maintenance, and monitors equipmentControls and manages machinery, ensures quality, and troubleshooting

The Machine Operator Assistant primarily supports and assists the Machine Operator in daily tasks, focusing on preparation and basic maintenance. The Machine Operator takes on the responsibility of running and managing machinery independently. Both roles are essential in manufacturing, but the Machine Operator has more advanced technical duties and decision-making authority.

How to become a machine operator assistant with no experience?

To become a machine operator assistant with no experience, start by gaining basic knowledge of manufacturing processes and safety procedures through online courses or training programs. Entry-level positions often require a high school diploma or equivalent, and on-the-job training is provided to learn equipment operation and maintenance. Developing skills in attention to detail, manual dexterity, and understanding of tools can improve your chances of securing a position.

What are the most commonly searched types of Machine Operator jobs in Ontario, CA?

The most popular types of Machine Operator jobs in Ontario, CA are:

What cities near Ontario, CA are hiring for Machine Operator Assistant jobs?

Cities near Ontario, CA with the most Machine Operator Assistant job openings:

Machine Operator Assistant jobs near you
Infographic showing various Machine Operator Assistant job openings in Ontario, CA as of August 2026, with employment types broken down into 1% As Needed, 79% Full Time, 17% Part Time, 1% Temporary, and 2% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution, with an average salary of $38,614 per year, or $18.6 per hour.

Machine Operator Assistant

Premier Packaging

Rancho Cucamonga, CA

$19 - $20/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 2 days ago

Premier Packaging rating

6.7

Company rating: 6.7 out of 10

Based on 18 frontline employees who took The Breakroom Quiz

86th of 121 rated packaging manufacturers

Job description

Job Summary: Machine Operator Assistant

We are not just a box company. Premier Packaging is a fast-growing, forward-thinking provider for all packaging needs. From corrugated, warehouse solutions, design & engineering to packaging supplies.

Leave your past careers at the door! Once you become a member of the Premier family, you’ll discover this job is so much more than you imagined. Above all, we dream big, think creatively, solve problems, have fun, work hard, and value our team. Almost 30 years in business and we are just getting started.

Shift: Machine Operator Assistant

  • Sunday-Thursday
  • 10 pm-6:30 am

Expected Hours: Machine Operator Assistant

  • 40 Hours
  • Overtime When Needed

Pay Frequency: Machine Operator Assistant

  • Bi-Weekly

Essential Functions: Machine Operator Assistant

  • Assist in the setup of corrugated manufacturing machines under the guidance of the machine operator.
  • Ensure that materials and tools required for machine setup are readily available.
  • Handle and transport corrugated materials within the production area.
  • Support the loading and unloading of materials onto and from the production line.
  • Follow instructions and perform tasks delegated by the machine operator.
  • Assist in conducting quality checks on produced materials.
  • Notify the machine operator of any defects or issues identified during the production process.
  • Communicate clearly to ensure coordinated efforts in the production workflow.
  • Be open to learning and gaining skills related to corrugated manufacturing processes.

Benefits: Machine Operator Assistant

  • Physical & Mental Wellbeing
    • Medical, Dental, and Vision Insurance
    • Basic Life Insurance
    • Short & Long-Term Disability
    • Employee Assistance Program
    • Health Savings Account (H.S.A)
    • Paid Time Off
    • Virtual Care is available 24/7
      • Primary Care
      • Urgent Care
      • Behavioral Care
      • Dermatology
  • Compensation and Retirement Contributions
    • Competitive compensation
    • Attendance bonus
    • Career growth opportunities
    • 401(k) savings plan with company match
    • Referral Program

Our Mission

Premier Packaging provides innovative packaging solutions through a combination of curiosity, collaboration, and a culture built on excellence and an entrepreneurial spirit. We are responsive to our customers’ needs, committed to reducing our impact on the environment, and continually improve our processes to deliver quality products in a safe working environment. We ask ‘Why’ so we can deliver the ‘How.’

 Education / Physical / Requirements: Machine Operator Assistant

  • At least 18 years of age.
  • Lift up to 25 lbs. alone and up to 50 lbs. assisted. 
  • Position requires repetitive motion of the hands and wrists.
  • Can complete basic math skills and computer knowledge. 
  • Can read a tape measure in standard measurements.
  • Ability to assist in the setup and operation of corrugated manufacturing machinery.
  • Adherence to safety protocols and guidelines during machine operation.
  • Effective communication skills to ensure smooth workflow.

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