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Injection Mold Jobs in Rancho Cucamonga, CA (NOW HIRING)

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 start-up currently developing more than 100 innovative products and inventions with multiple ...

Datwyler

Press Operator Injection

Ontario, CA

$20 - $23/hr

The press operator - injection sets up and operates injection molding presses to convert uncured strips of rubber into cured parts. This role will be for 2nd shift production. Primary ...

Datwyler

Press Operator Injection

Ontario, CA · On-site

$20 - $23/hr

The press operator - injection sets up and operates injection molding presses to convert uncured strips of rubber into cured parts. This role will be for 2nd shift production. Primary ...

Datwyler

Press Operator - Injection

Ontario, CA

$20 - $23/hr

Molds parts using an injection molding press * Changes molding conditions if required * Returns unused compounded material to mixing department Qualifications * High school diploma or equivalent ...

Datwyler

Press Operator - Injection

Ontario, CA · On-site

$20 - $23/hr

Molds parts using an injection molding press * Changes molding conditions if required * Returns unused compounded material to mixing department Qualifications * High school diploma or equivalent ...

Kirkhill Inc.

Project Engineer

Brea, CA · On-site

$110K - $140K/yr

Define injection mold tooling requirements and specifications.Collaborate with toolmakers and suppliers on mold design, construction, validation, and troubleshooting.Review tooling concepts, mold ...

Kirkhill Inc.

Project Engineer

Brea, CA · On-site

Define injection mold tooling requirements and specifications. * Collaborate with toolmakers and suppliers on mold design, construction, validation, and troubleshooting. * Review tooling concepts ...

Kirkhill Inc.

Project Engineer

Brea, CA · On-site

$110K - $140K/yr

Define injection mold tooling requirements and specifications. * Collaborate with toolmakers and suppliers on mold design, construction, validation, and troubleshooting. * Review tooling concepts ...

Honor Plastics & Molding

Process Engineer

Pomona, CA · On-site

$83K - $85K/yr

The process technician must have a good fundamental knowledge of the injection molding process, raw material, test methods, processing controls, and secondary equipment. This position directly ...

Honor Plastics & Molding

Process Engineer

Pomona, CA

$85K/yr

The process technician must have a good fundamental knowledge of the injection molding process, raw material, test methods, processing controls, and secondary equipment. This position directly ...

Honor Plastics & Molding

Tool Room Machinist

Pomona, CA · On-site

$22 - $25/hr

Basic knowledge of Injection molding and mold maintenance * Tagging and placing molds in assigned locations/ assigning molds to new locations. * Assisting tool room manager in mold change overs ...

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All JobsInjection Mold JobsInjection Mold Jobs in Rancho Cucamonga, CA

Injection Mold information

See Rancho Cucamonga, CA salary details

$5

$19

$31

How much do injection mold jobs pay per hour?

As of Aug 9, 2026, the average hourly pay for injection mold in Rancho Cucamonga, CA is $19.81, according to ZipRecruiter salary data. Most workers in this role earn between $16.97 and $21.11 per hour, depending on experience, location, and employer.

What is an injection mold?

An injection mold is a specialized tool used in the manufacturing process of injection molding, where molten material—usually plastic—is injected into a mold cavity to form specific shapes. The mold is typically made from steel or aluminum and consists of two halves: the cavity side and the core side. Injection molds are essential for producing high-volume, precise, and repeatable parts for industries like automotive, consumer products, and electronics. Designing and maintaining these molds requires technical expertise to ensure product quality and efficiency.

What is the difference between Injection Mold vs Mold Maker?

AspectInjection MoldMold Maker
Primary RoleDesign, manufacture, and maintain molds used in plastic injection molding processesBuilds, repairs, and maintains molds and tooling for various manufacturing applications
Required SkillsKnowledge of plastics, CAD software, and injection molding processesExpertise in machining, welding, and mold assembly
Work EnvironmentManufacturing plants, machine shopsMachine shops, manufacturing facilities
CertificationsOften requires technical certifications or vocational trainingRequires machining and tooling certifications

Injection Molds focus on designing and producing molds for plastic injection processes, while Mold Makers specialize in building and repairing those molds. Both roles require technical skills and work in similar environments, but their core responsibilities differ in the mold lifecycle stages.

What are the key skills and qualifications needed to thrive as an injection mold technician, and why are they important?

To thrive as an Injection Mold Technician, you need a solid understanding of manufacturing processes, mechanical aptitude, and experience with injection molding machinery, often supported by technical training or certification. Familiarity with CAD software, mold maintenance tools, and quality control systems is typically required. Attention to detail, problem-solving abilities, and effective communication are standout soft skills in this role. These competencies are crucial to ensure product quality, minimize downtime, and maintain efficient and safe production processes.

What are some common challenges faced by professionals working in injection mold operations, and how can they be addressed?

Professionals in injection mold operations often encounter challenges such as maintaining tight tolerances, troubleshooting machine malfunctions, and ensuring consistent product quality. These challenges can be addressed by staying up-to-date with equipment maintenance, following standardized procedures, and working closely with quality assurance and engineering teams. Continuous training and open communication with team members are also essential for quickly resolving production issues and improving overall efficiency.
What are popular job titles related to Injection Mold jobs in Rancho Cucamonga, CA? For Injection Mold jobs in Rancho Cucamonga, CA, the most frequently searched job titles are:
What job categories do people searching Injection Mold jobs in Rancho Cucamonga, CA look for? The top searched job categories for Injection Mold jobs in Rancho Cucamonga, CA are:
What cities near Rancho Cucamonga, CA are hiring for Injection Mold jobs? Cities near Rancho Cucamonga, CA with the most Injection Mold job openings:
Injection Mold jobs near you
Infographic showing various Injection Mold job openings in Rancho Cucamonga, CA as of August 2026, with employment types broken down into 84% Full Time, 4% Part Time, 8% Contract, and 4% Nights. Highlights an 92% In-person, and 8% Remote job distribution, with an average salary of $41,199 per year, or $19.8 per hour.

Injection Mold Maker

Ezonyx Bio Technologies

Brea, CA • On-site

Full-time

Re-posted 10 days ago

Job description

Company Description
EZONYX BIO TECHNOLOGIES, INC.™ IS A FULL-SERVICE BIOPLASTICS COMPANY THAT SPECIALIZES IN SUSTAINABLE PRODUCT INNOVATION AND THE MANUFACTURING OF PROPRIETARY BIOPOLYMER RESINS, PROVIDING COMPREHENSIVE DESIGN AND DEVELOPMENT SOLUTIONS FOR COMPANIES SEEKING ALTERNATIVES TO CONVENTIONAL PLASTICS.
Job Description
Plastic Injection Mold Maker (Los Angeles)
EZONYX BIO TECHNOLOGIES, Inc
We are a dynamic technology start-up currently developing more than 100 innovative products and inventions with multiple utility patents field with USPTO.
We are seeking an experienced plastic injection mold maker to join our engineering team in the research, development, optimization and launch of biodegradable and compostable plastics. This candidate will focus on mechanical and technical improvements for plastic extrusion, molding and other thermoforming processes to meet company goals.
Responsible for laying-out, building, fine-tuning and repairing injection molds.
Essential Duties and Responsibilities:
  • Competent, safe operation of manual milling machines and lathes
  • Programming, set-up and operation CNC milling machines, CNC WEDM machines (Charmilles and Sodick), CNC Die sinking EDM machines, Manual EDM machines, saws, surface grinders
  • 3 axis and 5 axis CNC operation
  • Interpret customer-supplied parts, drawings, and computer files
  • Mold layout, including materials, gates, vents, parting lines, overall size, shrinkage, heat transfer
  • Utilize any/all machine centers to achieve desired results
  • Fabricate high-quality injection molds
  • Meeting schedule commitments (on-time build)
  • Fine-tune molds based on feedback from molding department
  • Repair molds based on feedback from molding department
  • Conduct complicated mold maintenance as needed
  • T/R housekeeping, keep machine centers and personal tools orderly
  • Notify manager or project manager of any materials or tools required
  • Participate in corrective / preventive action reviews (assist production in troubleshooting)

PLEASE SUBMIT CURRENT RESUME AND COVER LETTER AND LET US KNOW HOW YOU CAN BENEFIT THE COMPANY WITH YOUR SKILLSET.
Compensation:
Salary bonus based on Performance
Qualifications
Essential Duties and Responsibilities:
  • Competent, safe operation of manual milling machines and lathes
  • Programming, set-up and operation CNC milling machines, CNC WEDM machines (Charmilles and Sodick), CNC Die sinking EDM machines, Manual EDM machines, saws, surface grinders
  • 3 axis and 5 axis CNC operation
  • Interpret customer-supplied parts, drawings, and computer files
  • Mold layout, including materials, gates, vents, parting lines, overall size, shrinkage, heat transfer
  • Utilize any/all machine centers to achieve desired results
  • Fabricate high-quality injection molds
  • Meeting schedule commitments (on-time build)
  • Fine-tune molds based on feedback from molding department
  • Repair molds based on feedback from molding department
  • Conduct complicated mold maintenance as needed
  • T/R housekeeping, keep machine centers and personal tools orderly
  • Notify manager or project manager of any materials or tools required
  • Participate in corrective / preventive action reviews (assist production in troubleshooting)

Additional Information
All your information will be kept confidential according to EEO guidelines.

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