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Plastic Injection Molding Operator Jobs in California

Professional Search Group - Orange County

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Injection Mold Shop Lead - 3rd Shift

Tustin, CA · On-site

$31 - $35/hr

Proven experience in plastics injection molding, blow molding, extrusion, or related plastics manufacturing environments * Strong mechanical knowledge with hands-on experience operating CNC machines ...

Ezonyx Bio Technologies

Injection Mold Maker

Brea, CA · On-site

Plastic Injection Mold Maker (Los Angeles) EZONYX BIO TECHNOLOGIES, Inc We are a dynamic technology ... This candidate will focus on mechanical and technical improvements for plastic extrusion, molding ...

Ezonyx Bio Technologies

Injection Mold Maker

Brea, CA · On-site

Plastic Injection Mold Maker (Los Angeles) EZONYX BIO TECHNOLOGIES, Inc We are a dynamic technology ... This candidate will focus on mechanical and technical improvements for plastic extrusion, molding ...

M.R. Mold & Engineering

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Associate injection mold designer - Entry Level.

Brea, CA · On-site

$40K - $60K/yr

This position is an excellent opportunity for a recent graduate with a foundational background in Computer-Aided Design (CAD) to launch a career in the plastic injection molding industry and gain ...

Ambrit Engineering

Process Technician

Santa Ana, CA

$28 - $34/hr

We are a growing Southern California plastic injection molding manufacturer seeking experienced ... Can assist and coordinate daily activities of production workers engaged in operating plastic ...

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Plastic Injection Molding Operator information

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How much do plastic injection molding operator jobs pay per hour?

As of Sep 14, 2026, the average hourly pay for plastic injection molding operator in California is $17.48, according to ZipRecruiter salary data. Most workers in this role earn between $15.19 and $18.75 per hour, depending on experience, location, and employer.

What does a plastic injection molding operator do?

A Plastic Injection Molding Operator is responsible for setting up, operating, and maintaining machines that shape plastic materials into parts and products. They ensure molds are correctly installed, monitor the molding process, and inspect finished products for quality. Operators may also troubleshoot machine issues, adjust settings for optimal production, and keep records of production runs. This role is crucial in manufacturing industries that produce plastic components for automotive, medical, consumer goods, and more.

What are the key skills and qualifications needed to thrive as a plastic injection molding operator, and why are they important?

To thrive as a Plastic Injection Molding Operator, you need a solid understanding of machine operation, quality control, and basic mechanical aptitude, often earned through a high school diploma or technical training. Familiarity with injection molding machines, measurement tools like calipers and micrometers, and knowledge of safety protocols are essential. Attention to detail, problem-solving skills, and the ability to work well in a team make someone stand out in this position. These skills ensure efficient production, minimize defects, and maintain workplace safety in a manufacturing environment.

What are some common challenges faced by plastic injection molding operators, and how can they be addressed on the job?

Plastic Injection Molding Operators often encounter challenges such as machine malfunctions, maintaining product quality, and managing tight production schedules. To address these, operators must regularly perform equipment checks, promptly report and troubleshoot issues, and follow detailed quality control procedures. Effective communication with maintenance teams and supervisors is essential to minimize downtime and ensure consistent output. Staying updated on best practices and safety protocols also helps operators adapt to production demands and maintain a smooth workflow.

What is the difference between Plastic Injection Molding Operator vs Plastic Molding Technician?

AspectPlastic Injection Molding OperatorPlastic Molding Technician
CertificationsTypically requires on-the-job training, sometimes certifications in machinery operationMay require additional certifications or technical training in troubleshooting
Work EnvironmentManufacturing plants, operating injection molding machinesSimilar environment, often involved in machine setup and maintenance
Job ResponsibilitiesOperate injection molding machines, monitor production, perform quality checksSet up, troubleshoot, and maintain molding equipment, ensure quality standards

The main difference is that Plastic Injection Molding Operators primarily focus on operating machines and monitoring production, while Plastic Molding Technicians handle setup, troubleshooting, and maintenance tasks. Both roles work in similar environments and may require comparable certifications, but technicians typically have a broader scope of technical skills.

Plastic Injection Molding Operator jobs near you
Infographic showing various Plastic Injection Molding Operator job openings in California as of August 2026, with employment types broken down into 79% Full Time, 7% Part Time, 7% Contract, and 7% Nights. Highlights an 100% In-person job distribution, with an average salary of $36,352 per year, or $17.5 per hour.

Injection Molding Machine Operator in Garden Grove, CA 92841 (2nd shift)

Garden Grove, CA • On-site

ALOIS LLC
Recruiting and Staffing Services • 51 - 200 employees
Learn more about ALOIS LLCexternal

$22/hr

Contractor

Posted 20 days ago

Job description

Job Title: Injection Molding Machine Operator
Location: Garden Grove, CA 92841
Pay rate $22.00. In addition, 2nd shift differential $1.00 per hour
Shift: 1 pm to 9:30 pm Monday to Friday. This site prefers not to call temp to hire. However temps can apply for open jobs after 3 months.

Comments/Special Instructions
Pay rate $22.00. In addition, 2nd shift differential $1.00 per hour
Shift is 1 pm to 9:30 pm Monday to Friday. This site prefers not to call temp to hire. However temps can apply for open jobs after 3 months.

Qualifications:
  • Manufacturing experience preferred
  • Ability to work Overtime, including weekends and Holidays.
 
Responsibilities:
  • Reads blueprint drawings and work orders to understand and meet customer specifications.
  • Produces quality parts by running plastic injection molding machines, following work orders and blueprints.
  • Monitors process temperatures and injection pressures to detect non-conformances to drawing specs. Verifies settings by measuring positions, first-run part, and sample work pieces.
  • Uses instruments such as micrometers, Vernier calipers, and optical comparator. Performs occasional preventive maintenance per the manufacturer's instructions. Other duties as assigned by Supervisor.