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Injection Molding Supervisor Jobs in Riverside, CA

Maintenance Technician

Pomona, CA ยท On-site

$30 - $32/hr

Troubleshoot problems with injection molding machines and their auxiliary equipment. * Perform ... Perform any other assignments given by his/her supervisor. * Perform Preventive Maintenance for ...

Maintenance Technician

Pomona, CA ยท On-site

$30 - $32/hr

Troubleshoot problems with injection molding machines and their auxiliary equipment. * Perform ... Perform any other assignments given by his/her supervisor. * Perform Preventive Maintenance for ...

Setup Technician

Pomona, CA ยท On-site

$24.50 - $25/hr

Follows work orders, blueprints, and programming folders to set up plastic injection molding ... Maintain a clean and safe work area and report any unsafe conditions to supervisor * Operates ...

Follows work orders, blueprints, and programming folders to set up plastic injection molding ... Maintain a clean and safe work area and report any unsafe conditions to supervisor * Operates ...

... supervisors, mold techs, quality, and maintenance team * Support continuous improvement and Lean manufacturing initiatives What We're Looking For Required * 2+ years of plastic injection molding ...

Process Technician

Santa Ana, CA ยท On-site

$28 - $34/hr

... supervisors, mold techs, quality, and maintenance team * Support continuous improvement and Lean manufacturing initiatives What We're Looking For Required * 2+ years of plastic injection molding ...

Project Engineer

Brea, CA ยท On-site

$110K - $140K/yr

Define injection mold tooling requirements and specifications.Collaborate with toolmakers and ... Supervisory Responsibilities:Is responsible for the overall direction, coordination, and evaluation ...

CNC Mold Tech II

Lake Forest, CA

$21.75 - $29.75/hr

... injection molds * Experience in DMG Mori Seki * Experience in Mitsubishi EDM (Wire & Sinker ... Works with Mold Design Engineers and Mold Tool Room Supervisor as needed to develop a constructive ...

Define injection mold tooling requirements and specifications. * Collaborate with toolmakers and ... Other duties as assigned by management Supervisory Responsibilities: Is responsible for the overall ...

Project Engineer

Brea, CA ยท On-site

$110K - $140K/yr

Define injection mold tooling requirements and specifications. * Collaborate with toolmakers and ... Other duties as assigned by management Supervisory Responsibilities: Is responsible for the overall ...

Mold Tech III

Foothill Ranch, CA ยท On-site

$20.75 - $26.75/hr

Works with Mold Design Engineers and Mold Tool Room Supervisor as needed to develop a constructive ... Reads & interprets complex CAD drawings/specifications of injection molds and part models.

Mold Tech III

Foothill Ranch, CA

$20.75 - $26.75/hr

Works with Mold Design Engineers and Mold Tool Room Supervisor as needed to develop a constructive ... Reads & interprets complex CAD drawings/specifications of injection molds and part models.

Mold Tech III

Foothill Ranch, CA ยท On-site

$20.75 - $26.75/hr

Works with Mold Design Engineers and Mold Tool Room Supervisor as needed to develop a constructive ... Reads & interprets complex CAD drawings/specifications of injection molds and part models.

QC Manager

Fontana, CA ยท On-site

... supervisory experience preferred. โ€ข Plastic injection molding experience desirable, preferably in a multi-plant environment โ€ข ASQ Certified Quality Engineer, Quality Auditor, Quality Manager and ...

QC Manager

Fontana, CA ยท On-site

... supervisory experience preferred. โ€ข Plastic injection molding experience desirable, preferably in a multi-plant environment โ€ข ASQ Certified Quality Engineer, Quality Auditor, Quality Manager and ...

Showing results 21-40

Injection Molding Supervisor information

See Riverside, CA salary details

$17

$28

$38

How much do injection molding supervisor jobs pay per hour?

As of Sep 14, 2026, the average hourly pay for injection molding supervisor in Riverside, CA is $28.70, according to ZipRecruiter salary data. Most workers in this role earn between $25.82 and $31.83 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 Riverside, CA?

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

What job categories do people searching Injection Molding Supervisor jobs in Riverside, CA look for?

The top searched job categories for Injection Molding Supervisor jobs in Riverside, CA are:

Infographic showing various Injection Molding Supervisor job openings in Riverside, CA as of September 2026, with employment types broken down into 1% As Needed, 74% Full Time, 22% Part Time, 2% Contract, and 1% Nights. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $59,697 per year, or $28.7 per hour.

Maintenance Technician

Pomona, CA โ€ข On-site

$30 - $32/hr

Full-time

Re-posted 20 days ago


Job description

Purpose

The maintenance Technician is responsible for keeping a facility operating and repairing any problems when they are discovered before they have a chance to worsen. This position directly reports to Plant Manager/VP Operations

Duties and Responsibilities

  1. Knowledge of hydraulic and electric trouble shoot
  2. basic knowledge of plastic processing.
  3. Troubleshoot problems with injection molding machines and their auxiliary equipment.
  4. Perform mechanical, electrical, pneumatic, hydraulic, and other repairs as needed.
  5. Operate forklift as needed.
  6. Oversee the preventative maintenance for plant equipment.
  7. Perform any other assignments given by his/her supervisor.
  8. Perform Preventive Maintenance for every start up job or every day ( check all auxiliary equipment , material dryer and machine

Required Knowledge, Skills, & Abilities:

  • High school diploma or equivalent qualification.
  • Knowledge of an injection molding plant.
  • Minimum of 2-3 years of experience repairing injection molding machinery and associated auxiliary equipment.
  • Basic math skills and basic understanding of the English language.

Physical Requirements:

  • Sit, stand, and walk for long period of time.
  • Lift up to 25 Ibs and good hand-eye coordination.
  • Must be able to talk, Listen, and speak clearly