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Injection Molding Supervisor Jobs in California (NOW HIRING)

Injection Molding Machine Operator

Garden Grove, CA · On-site

$16.25 - $21.75/hr

Produces quality parts by running plastic injection molding machines, following work orders and ... Other duties as assigned by Supervisor. Qualifications Manufacturing experience preferred Ability ...

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Injection Molding Supervisor information

See California salary details

$16

$27

$36

How much do injection molding supervisor jobs pay per hour?

As of Aug 27, 2026, the average hourly pay for injection molding supervisor in California is $27.15, according to ZipRecruiter salary data. Most workers in this role earn between $24.42 and $30.14 per hour, depending on experience, location, and employer.

What does an injection molding supervisor do?

An Injection Molding Supervisor oversees the injection molding production process, ensuring efficient operation, quality control, and adherence to safety standards. They manage machine operators, troubleshoot equipment issues, and optimize production schedules to meet deadlines. Additionally, they collaborate with quality control teams to ensure products meet specifications and implement process improvements for efficiency and cost reduction.

What are the key skills and qualifications needed to thrive as an injection molding supervisor?

To thrive as an Injection Molding Supervisor, you need a strong understanding of injection molding processes, equipment operations, and production management, often supported by experience in manufacturing and technical training. Familiarity with manufacturing software (like ERP or MES systems), SPC tools, and certifications such as Six Sigma or RJG Master Molder is highly valued. Strong leadership, problem-solving, and communication skills help you effectively manage teams and coordinate with other departments. These competencies are essential for maintaining quality standards, optimizing production efficiency, and ensuring safe and smooth operations.

What are some typical challenges an injection molding supervisor may face on the job?

Injection Molding Supervisors often encounter challenges such as minimizing machine downtime, maintaining consistent product quality, and balancing tight production schedules. They frequently need to troubleshoot equipment issues quickly while also training and motivating operators to follow best practices. Effective supervisors must adapt to rapidly changing production demands and work closely with maintenance, quality, and engineering teams to resolve problems efficiently. Overcoming these challenges requires a mix of technical know-how, organizational skills, and strong leadership. Embracing these demands can help supervisors develop valuable expertise and advance to higher management roles within manufacturing.

What are popular job titles related to Injection Molding Supervisor jobs in California?

For Injection Molding Supervisor jobs in California, the most frequently searched job titles are:

What cities in California are hiring for Injection Molding Supervisor jobs?

Cities in California with the most Injection Molding Supervisor job openings:

What are popular job titles related to Injection Molding Supervisor jobs in CA?

For Injection Molding Supervisor jobs in CA, the most frequently searched job titles are:

Infographic showing various Injection Molding Supervisor job openings in California as of August 2026, with employment types broken down into 1% As Needed, 71% Full Time, 22% Part Time, 1% Temporary, 4% Contract, and 1% Nights. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution, with an average salary of $56,472 per year, or $27.1 per hour.

Injection Molding Operator

Industrial - Quest Staffing Services

Camarillo, CA

$16.25 - $22/hr

Full-time

Posted 7 days ago


Job description

JOB DESCRIPTION
Title: Injection Molding Operator    

Job Summary:    
The Injection Molding Operator is responsible for operating and monitoring injection molding machines to produce high-quality molded components according to production schedules and quality standards. This role includes setting up equipment, inspecting products, and ensuring compliance with customer requirements.

Essential Functions:   

  • Operate injection molding machines in accordance with established procedures and work instructions.
  • Perform mold changes and basic machine setups under guidance of technical staff.
  • Record production data such as quantities, downtime, and scrap.
  • Identify and communicate equipment malfunctions or process deviations to supervisors or maintenance teams.
  • Responsible for packaging finished goods.
  • Accurately mix materials.
  • Read and interpret blueprints and diagrams to select, position, and secure machinery.
  • Adjust machine settings to complete tasks accurately, according to specifications, and in a timely fashion.
  • Set machine controls regulating molding temperature, volume of plastic, molding pressure and time, according to knowledge of plastics and molding procedures.
  • Conduct first article inspections against the work order for accuracy and adjusts as necessary.
  • Maintain the flow and quality of parts produced.
  • Clean and maintain molding machines and equipment for optimal operation, following all safety protocols.
  • Responsible for proper removal and handling of parts. Install molds onto machine according to work order specifications, using clamps, bolts, and hand tools.
  • Maintain a clean and organized work area, following 5S and safety guidelines
  • Follows safety protocols and report safety hazards. Perform other duties as assigned.
Education:    High school diploma or equivalent

Required Experience & Competencies:

  • 1+ years' experience in operating a molding machine.
  • Ability to work independently or as part as a team.
  • Advance decoupling skills.
  • Knowledge of basic manufacturing safety and quality control principles.
  • Ability to operate and adjust basic machine controls.
  • Strong attention to detail and quality.
  • Ability to follow written and verbal instructions in English.
  • Basic math skills for measurements and production calculation Profax and P5M6K material knowledge preferred.
  • Good understanding of basic control functions and mechanical ability.