ZipRecruiter

Log In

1

Molding Engineer Jobs in Riverside, CA (NOW HIRING)

Honor Plastics & Molding

Process Engineer

Pomona, CA · On-site

$83K - $85K/yr

The process engineer is responsible for maintaining daily production uptime of fully automated molding machines, including all subsequent pre- and post-mold operations such as trimming, insert ...

Honor Plastics & Molding

Process Engineer

Pomona, CA · On-site

$85K/yr

The process engineer is responsible for maintaining daily production uptime of fully automated molding machines, including all subsequent pre- and post-mold operations such as trimming, insert ...

VPET USA LLC

Injection Mold Technician

Fontana, CA · On-site

$22.25 - $29.75/hr

Processing Engineering Manager (CA) Overview: The Injection Molding Technician supports our PET bottle production line. You will be responsible for machine maintenance to include diagnosing ...

Honor Plastics & Molding

Product Design Intern

Pomona, CA · On-site

$22 - $22.50/hr

Provide Engineering support to Production on existing tooling problems. * Review mold issues with production and tool room staff to help resolve mold failures and inefficiencies on new or existing ...

Applied Medical

Mold Maker

Rancho Santa Margarita, CA

$25 - $40/hr

Lead and guide the construction of injection molds and research and development components in accordance with engineering drawings, routing sheets, and manufacturing instructions. * Coordinate ...

Applied Medical

Mold Maker

Rancho Santa Margarita, CA

$25 - $40/hr

Lead and guide the construction of injection molds and research and development components in accordance with engineering drawings, routing sheets, and manufacturing instructions. * Coordinate ...

Applied Medical

Mold Maker

Rancho Santa Margarita, CA · On-site

$25/hr

Lead and guide the construction of injection molds and research and development components in accordance with engineering drawings, routing sheets, and manufacturing instructions. * Coordinate ...

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 ...

Ezonyx Bio Technologies

Injection Mold Maker

Brea, CA · On-site

Programming, set-up and operation CNC milling machines, CNC WEDM machines (Charmilles and Sodick ... from molding department * Repair molds based on feedback from molding department * Conduct ...

next page

Showing results 1-20

People also search for

All JobsMolding Engineer JobsMolding Engineer Jobs in Riverside, CA

Molding Engineer information

See Riverside, CA salary details

$43.8K

$86.2K

$130.9K

How much do molding engineer jobs pay per year?

As of Jun 10, 2026, the average yearly pay for molding engineer in Riverside, CA is $86,243.00, according to ZipRecruiter salary data. Most workers in this role earn between $73,600.00 and $91,300.00 per year, depending on experience, location, and employer.

What is the difference between Molding Engineer vs Tooling Engineer?

AspectMolding EngineerTooling Engineer
Primary FocusDesign, develop, and optimize molding processes for manufacturing plastic or metal partsDesign, develop, and maintain tools and dies used in manufacturing processes
Required SkillsKnowledge of molding machines, materials, process parametersExpertise in tool design, CAD/CAM, and machining
Work EnvironmentManufacturing plants, quality labsTool rooms, machine shops, manufacturing facilities
Common CertificationsManufacturing or process engineering certificationsTool design, CAD/CAM certifications

While both roles are integral to manufacturing, Molding Engineers focus on the overall molding process and product quality, whereas Tooling Engineers specialize in designing and maintaining the tools used in production. Both roles require technical skills and often collaborate to ensure efficient manufacturing operations.

What are the key skills and qualifications needed to thrive as a Molding Engineer, and why are they important?

To thrive as a Molding Engineer, you need a strong background in mechanical or manufacturing engineering, with expertise in injection molding processes and materials science, often supported by a relevant engineering degree. Familiarity with CAD software, mold flow analysis tools, and quality control systems is typically required, along with certifications like Six Sigma or RJG Master Molder. Problem-solving, attention to detail, and effective communication are crucial soft skills for collaborating with cross-functional teams and ensuring process optimization. These skills and qualifications are vital for producing high-quality molded products efficiently and maintaining consistent manufacturing standards.

What are some common challenges a Molding Engineer faces when optimizing production processes?

Molding Engineers often encounter challenges such as maintaining consistent quality across large production runs, minimizing cycle times, and troubleshooting defects like warping or sink marks. They must also balance material costs with performance requirements and adapt to changes in tooling or equipment. Effective collaboration with production teams, tool designers, and quality assurance is essential to identify root causes and implement solutions quickly, ensuring smooth and efficient operations.

What are Molding Engineers?

Molding Engineers are specialized professionals who design, develop, and optimize molding processes used to manufacture parts and products, typically from plastics or other moldable materials. They work with various molding techniques, such as injection molding, compression molding, and blow molding, to ensure quality, efficiency, and cost-effectiveness in production. Their responsibilities include selecting appropriate materials, designing molds, troubleshooting defects, and improving existing processes. Molding Engineers often collaborate with product designers, quality engineers, and production teams to meet manufacturing goals.
What are popular job titles related to Molding Engineer jobs in Riverside, CA? For Molding Engineer jobs in Riverside, CA, the most frequently searched job titles are:
What job categories do people searching Molding Engineer jobs in Riverside, CA look for? The top searched job categories for Molding Engineer jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Molding Engineer jobs? Cities near Riverside, CA with the most Molding Engineer job openings:
Molding Engineer jobs near you

Process Engineer

Honor Plastics & Molding

Pomona, CA • On-site

$83K - $85K/yr

Full-time

Posted 4 days ago

Job description

Purpose:
The process engineer is responsible for maintaining daily production uptime of fully automated molding machines, including all subsequent pre- and post-mold operations such as trimming, insert loading, and automated part handling. 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 reports to the Plant Manager.
Duties & Responsibilities:
  • Perform all start-up, shutdown, and troubleshooting of the molding process during normal production run.
  • Monitor all process parameters and peripherals in injection molding cell, including driers, thermal control units, and testing equipment to ensure correct operation and performance
  • Coordinate and/ or set up all secondary and auxiliary equipment as needed for each job
  • Ensure that materials requiring pre-drying are managed properly.
  • Assist with all mold insert changes
  • Coordinate and assist with new mold samplings including the molding process and the creation of full documentation on processing parameters.
  • Communicate with management, quality assurance, and shop floor daily to discuss all modeling related issues
  • Assist with the planning, purchase, installation, and qualification of new production equipment including injection machines; automation and robotics; material handling; and related auxiliary equipment system
  • Assist set-up technicians and material Handlers as needed
  • Implement technical solutions to meet customer cost, quality, and delivery expectations
  • Monitor and document issues with injection molds, and make recommendations for repair and refurbishment based on production requirements
  • Ensure that the production activities are carried out in accordance with approved procedures
  • Promote safety, quality, and environmental awareness at all times
  • Always follow department operational procedures.
  • Operate the machines as needed

Required Knowledge, Skills, & Abilities:
  • High school diploma or equivalent qualification.
  • A minimum of 3 years' experience in a similar role (Preferred).
  • Strong mechanical aptitude and scientific molding experience would be beneficial
  • Good communication/Interpretation skills and attention to detail
  • Ability to work in a fast pace, high change environment, with limited supervision
  • Demonstrated ability to start up, operate, and shut down injection molding machines and related process equipment

Pay Rate : $85,000 Yearly

Apply