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Plastic Injection Mold Designer Jobs in Rancho Cucamonga, CA

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 ...

Honor Plastics & Molding

Setup Technician

Pomona, CA · On-site

$24.50 - $25/hr

Follows work orders, blueprints, and programming folders to set up plastic injection molding machines to produce quality parts * Inspect molds after set-up is completed for the following: water leaks ...

Honor Plastics & Molding

Setup Technician

Pomona, CA

$24.50 - $25/hr

Follows work orders, blueprints, and programming folders to set up plastic injection molding machines to produce quality parts * Inspect molds after set-up is completed for the following: water leaks ...

Pexco

Operator

Yorba Linda, CA · On-site

$20/hr

Job Location Yorba Linda, CA 6am-2:30pm mon-fri $20.00 an hour DOE The Molding Operator is responsible for operating and monitoring plastic injection molding machines to produce high-quality ...

Kelly Services

Maintenance Technician

Pomona, CA · On-site

$32 - $34/hr

This is a hands-on role requiring strong mechanical and electrical troubleshooting skills, particularly on plastic injection molding equipment and other industrial machinery. The ideal candidate is ...

safariland

Product Designer

Ontario, CA

Design injection molded and thermo-formed plastic components with emphasis on moldability, manufacturability and efficiency for assembling of finished goods * Supply technical drawings and 3 ...

safariland

Product Designer

Ontario, CA

Design injection molded and thermo-formed plastic components with emphasis on moldability, manufacturability and efficiency for assembling of finished goods * Supply technical drawings and 3 ...

Safariland

Product Designer

Ontario, CA · On-site

$70K - $94K/yr

Design injection molded and thermo-formed plastic components with emphasis on moldability, manufacturability and efficiency for assembling of finished goods * Supply technical drawings and 3 ...

Honor Plastics & Molding

Maintenance Technician

Pomona, CA · On-site

$30 - $32/hr

Knowledge of hydraulic and electric trouble shoot * basic knowledge of plastic processing. * Troubleshoot problems with injection molding machines and their auxiliary equipment. * Perform mechanical ...

Kirkhill Inc.

Project Engineer

Brea, CA · On-site

$110K - $140K/yr

Experience with injection molded plastic components.Proficiency in 3D CAD software (SolidWorks, CATIA, or equivalent).Ability to create and interpret detailed 2D engineering drawings and GD&T.Strong ...

Kirkhill Inc.

Project Engineer

Brea, CA · On-site

Experience with injection molded plastic components. * Proficiency in 3D CAD software (SolidWorks, CATIA, or equivalent). * Ability to create and interpret detailed 2D engineering drawings and GD&T.

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All JobsPlastic Injection Mold Designer JobsPlastic Injection Mold Designer Jobs in Rancho Cucamonga, CA

Plastic Injection Mold Designer information

See Rancho Cucamonga, CA salary details

$19

$34

$46

How much do plastic injection mold designer jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for plastic injection mold designer in Rancho Cucamonga, CA is $34.64, according to ZipRecruiter salary data. Most workers in this role earn between $25.29 and $42.74 per hour, depending on experience, location, and employer.

What is the difference between Plastic Injection Mold Designer vs Plastic Mold Maker?

AspectPlastic Injection Mold DesignerPlastic Mold Maker
CredentialsTechnical degree or certification in mold design or engineeringTechnical training or apprenticeship in mold fabrication
Work EnvironmentDesign offices, CAD software, collaboration with engineersManufacturing floor, machining, assembly of molds
Primary ResponsibilitiesDesigning mold components and layoutsBuilding and assembling molds based on designs

While both roles are essential in plastic injection molding, the Plastic Injection Mold Designer focuses on creating detailed mold designs using CAD software, whereas the Plastic Mold Maker physically constructs and assembles the molds based on those designs. The designer emphasizes planning and technical drawings, while the maker specializes in fabrication and assembly processes.

What are the key skills and qualifications needed to thrive as a plastic injection mold designer?

To thrive as a Plastic Injection Mold Designer, you need strong CAD proficiency, knowledge of mold design principles, materials science, and a background in mechanical engineering or a related field. Familiarity with software like SolidWorks, AutoCAD, and simulation tools, as well as experience with manufacturing processes, is typically required. Attention to detail, problem-solving abilities, and effective communication are standout soft skills in this role. These competencies are vital for creating efficient, cost-effective molds that meet client specifications and ensure high-quality production.

What are some common challenges faced by plastic injection mold designers in coordinating with manufacturing and engineering teams?

Plastic Injection Mold Designers often face challenges when translating design concepts into manufacturable molds that meet both engineering specifications and production efficiency goals. Effective communication with manufacturing and engineering teams is crucial, as design revisions may be needed to address issues like part tolerances, material selection, or tooling limitations. Designers must balance creativity with practicality, ensuring that molds are robust, cost-effective, and producible within the project's constraints. Regular collaboration and feedback loops help resolve potential conflicts and result in higher-quality outcomes.

What does a plastic injection mold designer do?

A Plastic Injection Mold Designer is responsible for creating the detailed designs and specifications for molds used in the plastic injection molding process. They use computer-aided design (CAD) software to develop precise molds that ensure the efficient and accurate production of plastic parts. Their work involves understanding material properties, manufacturing processes, and collaborating with engineers and machinists to troubleshoot and improve mold designs. This role is crucial in industries like automotive, consumer goods, and medical devices where high-quality plastic components are required.
What are popular job titles related to Plastic Injection Mold Designer jobs in Rancho Cucamonga, CA? For Plastic Injection Mold Designer jobs in Rancho Cucamonga, CA, the most frequently searched job titles are:
What job categories do people searching Plastic Injection Mold Designer jobs in Rancho Cucamonga, CA look for? The top searched job categories for Plastic Injection Mold Designer jobs in Rancho Cucamonga, CA are:
Plastic Injection Mold Designer jobs near you
Infographic showing various Plastic Injection Mold Designer job openings in Rancho Cucamonga, CA as of August 2026, with employment types broken down into 89% Full Time, 5% Part Time, 1% Temporary, and 5% Contract. Highlights an 88% Physical, 5% Hybrid, and 7% Remote job distribution, with an average salary of $72,045 per year, or $34.6 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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