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Injection Mold Designer Jobs in California (NOW HIRING)

Studex

Plastic Injection Mold Maker

Harbor City, CA · On-site

$17.81 - $25/hr

Company: A worldwide provider of injection molding products serving a diverse marketplace is ... work with designers, technicians, engineers, and production personnel. Responsible for the ...

medplast

Mold Designer / Estimator

Fremont, CA · On-site

$130K - $150K/yr

Instrumental role within a growing Injection Molding Toolroom located in Fremont, CA. Reporting to ... Prelim Designs for Estimating * Predictive Flow Simulation (MoldFlow, SW Plastics) * Design for ...

medplast

Mold Designer / Estimator

Fremont, CA · On-site

$130K - $150K/yr

Instrumental role within a growing Injection Molding Toolroom located in Fremont, CA. Reporting to ... Prelim Designs for Estimating * Predictive Flow Simulation (MoldFlow, SW Plastics) * Design for ...

medplast

Mold Designer / Estimator

Fremont, CA · On-site

$130K - $150K/yr

Instrumental role within a growing Injection Molding Toolroom located in Fremont, CA. Reporting to ... Prelim Designs for Estimating * Predictive Flow Simulation (MoldFlow, SW Plastics) * Design for ...

EssilorLuxottica

Mold Tech III

Foothill Ranch, CA · On-site

$20.75 - $26.75/hr

Reads & interprets complex CAD drawings/specifications of injection molds and part models. * Interprets mold component drawings for form, fit and function. * Designs and builds jigs and fixtures as ...

EssilorLuxottica Group

Mold Tech III

Foothill Ranch, CA

$20.75 - $26.75/hr

Reads & interprets complex CAD drawings/specifications of injection molds and part models. * Interprets mold component drawings for form, fit and function. * Designs and builds jigs and fixtures as ...

Essilor

Mold Tech III

Foothill Ranch, CA

$20.75 - $26.75/hr

Reads & interprets complex CAD drawings/specifications of injection molds and part models. * Interprets mold component drawings for form, fit and function. * Designs and builds jigs and fixtures as ...

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All JobsInjection Mold Designer JobsInjection Mold Designer Jobs in California

Injection Mold Designer information

See California salary details

$18

$33

$45

How much do injection mold designer jobs pay per hour?

As of Jul 28, 2026, the average hourly pay for injection mold designer in California is $33.45, according to ZipRecruiter salary data. Most workers in this role earn between $24.42 and $41.30 per hour, depending on experience, location, and employer.

What is the difference between Injection Mold Designer vs Mold Flow Engineer?

AspectInjection Mold DesignerMold Flow Engineer
Required CredentialsTechnical diploma or degree in mechanical engineering or plastics technologyDegree in mechanical engineering, plastics engineering, or related field; often with certification in mold flow software
Work EnvironmentDesign studios, manufacturing plants, CAD softwareSimulation labs, CAD software, collaboration with design and manufacturing teams
Industry UsageDesigning molds for injection molding processesAnalyzing and optimizing mold flow to improve manufacturing efficiency

While both roles work closely in the injection molding industry, the Injection Mold Designer focuses on creating detailed mold designs, whereas the Mold Flow Engineer specializes in simulating and optimizing the flow of materials within molds to ensure quality and efficiency.

What does an Injection Mold Designer do?

An Injection Mold Designer is responsible for creating detailed designs and plans for molds used in the injection molding process, which manufactures plastic parts. They use CAD software to develop precise mold layouts, considering factors like material flow, cooling, and ease of manufacturing. Injection Mold Designers work closely with engineers and manufacturers to ensure the molds meet product specifications and function efficiently. Their expertise helps in reducing production costs and improving the quality of molded products.

What are the key skills and qualifications needed to thrive as an Injection Mold Designer, and why are they important?

To thrive as an Injection Mold Designer, you need expertise in mechanical design, materials science, and mold-making principles, often supported by a degree in mechanical engineering or a related field. Proficiency in CAD software such as SolidWorks or AutoCAD and familiarity with mold flow analysis tools are typically required. Strong problem-solving abilities, attention to detail, and effective communication skills set top designers apart. These competencies ensure precise, efficient mold designs that meet production requirements and minimize costly errors.

What are some common challenges faced by Injection Mold Designers, and how can they be addressed?

Injection Mold Designers often encounter challenges such as ensuring part manufacturability, minimizing material waste, and meeting tight tolerances under strict deadlines. Collaborating closely with engineers and machinists can help address design-for-manufacturing concerns early in the process. Additionally, staying updated on the latest CAD software and mold-making technologies can streamline workflows and reduce errors. Proactive communication and periodic design reviews with the production team are also key to overcoming potential issues before prototyping or manufacturing begins.
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Injection Mold Designer jobs near you
Infographic showing various Injection Mold Designer job openings in California as of July 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $69,576 per year, or $33.5 per hour.
Liquid Silicone Rubber Injection Mold designer

Liquid Silicone Rubber Injection Mold designer

M.R. Mold & Engineering Corp

Brea, CA • On-site

$60K - $80K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 11 days ago

Job description


M.R. Mold & Engineering Corp. for 37 years has specialized in tight-tolerance, flash less LSR, rubber and plastic prototype, production, and micro injection molds for medical and dental applications, including implantables, masks, and hearing aid products. Other industries served include aerospace, consumer products, and fluid handling. We are currently looking for an experienced Liquid Silicone Rubber Injection Mold Designer in the Orange County area.
Responsibilities:
  • Controlled revision changes per Engineering Change Orders
  • Ability to create simple/ and often complex 3D models using Creo
  • Create Bill of materials, Detail and Assy drawings per ANSI Y14.5 using primarily Creo and occasionally AutoCAD.
  • Works with engineering and the sales team to determine part design and/or modifications
  • Evaluates design based on design function, materials, manufacturing methods, production cost and customer specifications
  • Can read and understand customer supplied part drawings with emphasis on material callouts, dimensions and associated tolerances.
  • Ability to interface with customers, suppliers and vendors via email and /or by phone.
  • Assist team members with miscellaneous duties as required
  • Responsible for completing tasks according to engineering schedule
  • Training is available for recent graduates that possess exceptional skills.
Qualifications:
  • Strong knowledge of Solidworks or Creo for designing parts/assemblies
  • Must demonstrate strong ability to create drawings for both parts and assemblies in Solidworks or Creo
  • Working knowledge of Solidworks/Pro E tools such as standard features, as well as sheet metal, weldments, mold tools, and piping, 
  • Excellent communication and interpersonal skills
  • Mechanically oriented, or hands on capable.
Compensation and Benefits:
  • 80% paid medical insurance
  • Dental and Vision offered
  • 10% match for employee 401K
  • Paid Holidays and Vacation.