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Injection Molding Machine Operator Jobs in Riverside, CA

Ambrit Engineering - USA

Mold Maker

Santa Ana, CA · On-site

$45 - $48/hr

... volume injection molding environment. This position requires expertise in precision machining ... The ideal candidate will possess strong toolmaking skills and hands-on experience operating manual ...

Datwyler

Press Operator - Injection

Ontario, CA

$20 - $23/hr

Become part of our great team as a Press Operator - Injection. Primary Responsibilities * Follows ... Molds parts using an injection molding press * Changes molding conditions if required * Returns ...

Datwyler

Press Operator - Injection

Ontario, CA · On-site

$20 - $23/hr

Become part of our great team as a Press Operator - Injection. Primary Responsibilities * Follows ... Molds parts using an injection molding press * Changes molding conditions if required * Returns ...

Tigre USA Inc

Tool Maker

Beaumont, CA · On-site

$29 - $32/hr

Summary Responsible for maintaining all injection molding machines tools, auxiliary mold equipment ... operator/grinder as needed • Perform duties such as maintain reports/files, prepare reports ...

Tigre Manufacturing

Tool Maker

Beaumont, CA · On-site

$20 - $32/hr

Summary Responsible for maintaining all injection molding machines tools, auxiliary mold equipment ... operator/grinder as needed • Perform duties such as maintain reports/files, prepare reports ...

New

Tigre

Tool Maker

Beaumont, CA · On-site

$20 - $32/hr

Summary Responsible for maintaining all injection molding machines tools, auxiliary mold equipment ... operator/grinder as needed • Perform duties such as maintain reports/files, prepare reports ...

New

Applied Medical

Mold Maker

Rancho Santa Margarita, CA · On-site

$25 - $40/hr

Experience operating or supporting CNC machining equipment. * Background in manufacturing processes such as machining, injection molding, extrusion, and stamping. * Experience supporting medical ...

Applied Medical

Mold Maker

Rancho Santa Margarita, CA

$25 - $40/hr

Experience operating or supporting CNC machining equipment. * Background in manufacturing processes such as machining, injection molding, extrusion, and stamping. * Experience supporting medical ...

Applied Medical

Mold Maker

Rancho Santa Margarita, CA · On-site

$25/hr

Experience operating or supporting CNC machining equipment. * Background in manufacturing processes such as machining, injection molding, extrusion, and stamping. * Experience supporting medical ...

Cybercoders

Process Engineer

Anaheim, CA · On-site

$70K - $100K/yr

What You Need for this Position 5+ years experience; - Process Engineer in Injection Molding - plastics industry experience - experience with Injection Molding Machines and Robotics - experience with ...

Kelly Services

Maintenance Technician

Pomona, CA

$32 - $34/hr

... plastic injection molding equipment and other industrial machinery. The ideal candidate is ... operating at peak performance, we encourage you to apply today. As part of our promise to talent ...

LIFEBLOOM Corp.

Encapsulation Machine Operator

Brea, CA · On-site

$17/hr

Encapsulation Machine Operator (Entry Level). Basic As an Encapsulation Machine Operator, you will ... Disassemble and reassemble equipment i.e. perform mold changes. * Verification of equipment ...

HiFyve

Electro-Mechanical Technician

Fontana, CA

$34 - $42/hr

Unlike conventional manufacturing environments with separate roles for operators, maintenance, and ... injection molding equipment (approx. 600-ton Husky machines). * Handle changeovers, setups, and ...

EssilorLuxottica

Oakley - Mold Tech II

Foothill Ranch, CA · On-site

$28.81 - $42.53/hr

Reduce machine downtime. * Maintain all tools and equipment that are used including the daily ... Injection Molding process Experience * Toolmaker/Mold Maker Journeyman certification preferred

Essilor

Oakley - Mold Tech II

Foothill Ranch, CA

$28.81 - $42.53/hr

Reduce machine downtime. * Maintain all tools and equipment that are used including the daily ... Injection Molding process Experience * Toolmaker/Mold Maker Journeyman certification preferred

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All JobsInjection Molding Machine Operator JobsInjection Molding Machine Operator Jobs in Riverside, CA

Injection Molding Machine Operator information

See Riverside, CA salary details

$12

$19

$26

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

As of Jul 17, 2026, the average hourly pay for injection molding machine operator in Riverside, CA is $19.15, according to ZipRecruiter salary data. Most workers in this role earn between $16.06 and $21.59 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an Injection Molding Machine Operator, and why are they important?

To thrive as an Injection Molding Machine Operator, you need a solid understanding of manufacturing processes, mechanical aptitude, and typically a high school diploma or equivalent. Familiarity with injection molding machines, quality control systems, and basic computer operation is important, and some roles may require certification in plastics processing or safety training. Attention to detail, problem-solving abilities, and effective communication are valuable soft skills that help operators maintain quality and address issues quickly. These skills ensure consistent production quality, reduce downtime, and support a safe and efficient manufacturing environment.

What is the hourly rate for injection molding?

Injection molding machine operators typically earn between $15 and $25 per hour, depending on experience, location, and the complexity of the equipment. Entry-level operators may start at the lower end, while experienced workers or those with specialized skills can earn higher wages. Certifications and familiarity with specific machinery can also influence pay rates.

What are some common challenges faced by Injection Molding Machine Operators and how can they be addressed?

Injection Molding Machine Operators often encounter challenges such as machine malfunctions, maintaining consistent product quality, and minimizing material waste. Addressing these issues requires strong troubleshooting skills, attention to detail, and adherence to safety and quality protocols. Operators typically collaborate closely with maintenance teams and quality control inspectors to quickly resolve technical issues and ensure production standards are met. Continuous learning and familiarity with different plastics and machine types also help operators adapt to changing production demands and advance in their careers.

What qualifications do you need for injection molding?

Injection molding machine operators typically need a high school diploma or equivalent and may require on-the-job training or certification in machine operation and safety procedures. Basic mechanical skills, attention to detail, and the ability to read technical diagrams are important for the role.

Is injection molding a good career?

Injection molding machine operators play a key role in manufacturing plastic products, requiring skills in machine setup, operation, and quality control. The job often offers steady employment, opportunities for advancement, and may require certifications or training in machinery and safety protocols. It can be a stable career choice for those interested in manufacturing and technical work.

What is an Injection Molding Machine Operator?

An Injection Molding Machine Operator is a skilled worker responsible for setting up, operating, and maintaining machines that shape plastic or other materials into parts and products using molds. Their duties include loading materials into the machine, adjusting settings for temperature and pressure, monitoring the production process, and performing quality checks on finished products. They also troubleshoot issues, perform routine maintenance, and ensure safety standards are met in the manufacturing environment.

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

AspectInjection Molding Machine OperatorPlastic Molding Technician
CredentialsHigh school diploma, on-the-job trainingHigh school diploma, technical training or certification
Work EnvironmentFactories, manufacturing plantsFactories, manufacturing plants
Job FocusOperating and monitoring machinesMaintaining, troubleshooting, and setting up molds
Industry UsageCommon in plastics manufacturingCommon in plastics and rubber industries

While both roles work within plastics manufacturing, Injection Molding Machine Operators primarily focus on operating and monitoring molding machines, whereas Plastic Molding Technicians handle mold setup, maintenance, and troubleshooting. The roles often overlap but differ in technical responsibilities and skill requirements.

What is the typical injection molding salary?

The average salary for an injection molding machine operator typically ranges from $30,000 to $50,000 per year, depending on experience, location, and certifications. Skilled operators with experience in setting up and maintaining machines may earn higher wages, especially in manufacturing hubs or with overtime opportunities.
Injection Molding Machine Operator jobs near you
Infographic showing various Injection Molding Machine Operator job openings in Riverside, CA as of July 2026, with employment types broken down into 1% As Needed, 83% Full Time, 12% Part Time, 2% Contract, and 2% Nights. Highlights an 95% Physical, 1% Hybrid, and 4% Remote job distribution, with an average salary of $39,841 per year, or $19.2 per hour.

Mold Maker

Ambrit Engineering - USA

Santa Ana, CA • On-site

$45 - $48/hr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Posted 27 days ago

Job description

Mold Maker Job Summary

We are seeking an experienced Mold Maker to join our Tool Room team. The Mold Maker is responsible for manufacturing, repairing, and troubleshooting injection molds and tooling used in a high-volume injection molding environment. This position requires expertise in precision machining, blueprint reading, GD&T, mold construction, and mold repair to determine repair needs for Injection Molding (IM) molds, including predictive maintenance. Additional responsibilities may include general cleaning, welding, spotting and polishing.

The ideal candidate will possess strong toolmaking skills and hands-on experience operating manual and CNC machine tools to produce and repair mold components to precise specifications.

Essential Duties and Responsibilities

  • Build, repair, modify, and troubleshoot injection molds and mold components.

  • Manufacture mold components including cores, cavities, inserts, slides, lifters, ejector components, and related tooling.

  • Read and interpret engineering drawings, blueprints, CAD prints, and GD&T specifications.

  • Set up and operate tool room equipment including:

    • CNC milling machines

    • Manual milling machines

    • Surface grinders

    • Engine lathes

    • Wire EDM equipment

    • Drill presses and related machinery

  • Machine, fit, and assemble mold components to required tolerances.

  • Perform precision bench work including spotting, fitting, polishing, and assembly.

  • Repair damaged or worn mold components through machining, welding, grinding, and finishing operations.

  • Analyze tooling issues and determine appropriate corrective actions.

  • Verify dimensions and tolerances using precision measuring instruments.

  • Support engineering changes, mold improvements, and tooling modifications.

  • Perform mold tryout support and assist with tooling-related production issues.

  • Maintain accurate records of tooling repairs, modifications, and completed work.

  • Ensure all tooling and equipment are maintained in safe working condition.

  • Follow all company safety policies and procedures.

  • Perform other duties as assigned by the Tool Room Manager.

Required Qualifications

  • Minimum 5 years of Mold Maker experience in an injection molding or tooling manufacturing environment.

  • Strong understanding of injection mold construction and function.

  • Proficiency in blueprint reading and GD&T.

  • Experience operating CNC mills, manual mills, lathes, surface grinders, and Wire EDM equipment.

  • Skilled in precision machining, mold fitting, spotting, polishing, and assembly.

  • Experience repairing cores, cavities, slides, inserts, and other mold components.

  • Ability to perform precision measurements using micrometers, calipers, indicators, height gauges, and related inspection equipment.

  • Experience with welding and mold repair techniques.

  • Strong troubleshooting and problem-solving skills.

  • Ability to work independently with minimal supervision.

  • Knowledge of ISO standards and quality requirements.

  • Proficiency with Microsoft Office applications.

Preferred Qualifications

  • 7+ years of Mold Maker experience.

  • Journeyman Toolmaker or equivalent experience.

  • Advanced CNC programming and machining experience.

  • TIG, laser, or micro-welding experience.

  • Experience with hot runner systems and complex multi-cavity molds.

  • Leadership or mentoring experience within a tool room environment.

Benefits

  • Competitive pay based on experience

  • Medical, Dental, and Vision Insurance

  • Compnay Paid life insurance

  • 401(k)

  • Paid Time Off and Paid Holidays

  • Career Growth Opportunities

Schedule: Full-Time

Work Location: On-Site

You should be proficient in:

  • CAD Software
  • Injection Molding Experience
  • AS9100 Experience
  • Blueprint Reading