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Assistant Mold Masters Jobs in California (NOW HIRING)

Winchester Interconnect

Design Engineer

Orange, CA · On-site

$90K - $130K/yr

Input and maintain MRP system data (Item Masters, BOMs) and assist in maintaining the engineering ... Familiarity with manufacturing and fabrication processes (Stamping, machining, injection molding)

Fictiv

Customer Quality Engineer

Los Angeles, CA · On-site

What You Will Be Doing You will report to the Head of Global Quality and will assist from time to ... Strong Understanding of Injection Molding, 3D printing, or Sheet Metal preferred * Strong ...

Fictiv

Customer Quality Engineer

Oakland, CA · On-site

What You Will Be Doing You will report to the Head of Global Quality and will assist from time to ... Strong Understanding of Injection Molding, 3D printing, or Sheet Metal preferred * Strong ...

Leidos

Occupational Safety Health Analyst

El Cajon, CA · On-site

$73K - $132K/yr

... Health (EOSH) Program, and assist the Safety and Environmental Compliance Managers (SECMs ... Bachelors degree with 4+ years of relevant work experience OR Masters with 2+ years of relevant ...

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Assistant Mold Masters information

What is the difference between Assistant Mold Masters vs Mold Technicians?

AspectAssistant Mold MastersMold Technicians
Required CredentialsHigh school diploma, on-the-job trainingHigh school diploma, technical training or certification
Work EnvironmentManufacturing plants, mold shopsManufacturing plants, mold shops
Job ResponsibilitiesAssisting in mold setup, maintenance, and repairDesigning, building, and troubleshooting molds

Assistant Mold Masters typically support mold operations through hands-on assistance, while Mold Technicians are more involved in mold design, troubleshooting, and complex repairs. Both roles work in similar environments and often require technical training, but Mold Technicians usually have more advanced skills and responsibilities.

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For Assistant Mold Masters jobs in California, the most frequently searched job titles are:

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Infographic showing various Assistant Mold Masters job openings in California as of August 2026, with employment types broken down into 1% As Needed, 74% Full Time, 21% Part Time, 1% Temporary, and 3% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution.

Manufacturing Engineer Intern

Layup Parts

Huntington Beach, CA

$25 - $32/hr

Internship

Re-posted 16 days ago

Job description

At Layup Parts, we're developing the technology that will build the future. 

We're a manufacturing technology company replacing months of lead time with days, using proprietary software, automation, and advanced manufacturing systems built for speed. Our customers are inventing what's next, in aerospace, defense, robotics, and beyond. To keep up with them, manufacturing has to change. That's what we're building. 

We design, machine, laminate, and build at industry-leading speeds.  Now we're looking for highly motivated Manufacturing Engineer Interns who aren't afraid to tackle challenges head-on. We value initiative, teamwork, and a get-it-done attitude. 
 
Rolling Applications Open Year-Round:  Whether you're looking for a Fall, Winter, Spring, or Summer internship, we're accepting applications on a rolling basis. Join us for the season that fits your schedule and make a real impact on our fast-moving team. 
You will work on:
  • Designing molds and tools for customer parts with great documentation.
  • Ply / kit generation from customer designs as well as projector data/programming.
  • Customers production "cost down" and DFM efforts to help us scale and meet their needs as their quantities grow, owning their success.
  • Be hands on with production to understand their issues and bottlenecks, find ways to make their job easier in scalable ways.
 
Required:
  • Be awesome! Be the kind of person you want to work with!
  • In pursuit of a Bachelors or Masters Degree in Engineering.
  • Some background/experience in composites manufacturing; e.g. from school project team, hobby, other work experience etc.
  • Be proficient in a professional CAD suite (NX, SolidWorks, Catia, etc.) and be comfortable making professional drawings for manufacture.
  • U.S. Persons status is required as this position needs to access export controlled data
Preferred:
  • Have proficient understanding of designing for Composites lamination, machining, and 3D printing.
  • Have experience in other composites manufacturing methods like vacuum infusion (VARTM), compression molding, trapped rubber molding, and/or wet-layup.
$25 - $32 an hour
Final hourly rate is based on your experience, skills, and what you bring to the table. 
Layup is an equal-opportunity employer. All qualified applicants will be treated with respect and receive equal consideration for employment without regard to race, color, creed, religion, sex, gender identity, sexual orientation, national origin, disability, uniform service, Veteran status, age, or any other protected characteristic per federal, state, or local law, including those with a criminal history, in a manner consistent with the requirements of applicable state and local laws, including the CA Fair Chance Initiative for Hiring Ordinance.
 
ITAR Requirements - To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. 1157, or (iv) Asylee under 8 U.S.C. 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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