ZipRecruiter

Log In

1

Master Molder Jobs (NOW HIRING)

Comar

Plastics Process Engineer

Buena, NJ · On-site

Certifications or Licenses: • Master Molder 1 certificate desired. Can You...? • Read and interpret documents such as safety rules, operating and maintenance instructions, blueprints, and ...

Nova Biomedical

Plastics Process Engineer

Billerica, MA · On-site

$130K - $145K/yr

Master Molder II certification a plus. * Ability to work independently at times solving mold and process issues and conducting mold validations. * Ability to clearly articulate and train others on ...

Nova Biomedical

Plastics Process Engineer

Billerica, MA

$130K - $145K/yr

Master Molder II certification a plus. * Ability to work independently at times solving mold and process issues and conducting mold validations. * Ability to clearly articulate and train others on ...

Nova Biomedical

Plastics Process Engineer

Billerica, MA

$130K - $145K/yr

Master Molder II certification a plus. * Ability to work independently at times solving mold and process issues and conducting mold validations. * Ability to clearly articulate and train others on ...

Milwaukee Tool

Senior Process Engineer

Mukwonago, WI · On-site

$102K - $132K/yr

RJG Master Molder I/II strongly preferred. * Demonstrated expertise in scientific molding, process validation, and process troubleshooting. * Strong understanding of mold design, tooling principles ...

medplast

Process Engineer

San Antonio, TX

Certification in Master Molding 3 is a plus. Years of Experience: * 10+ years of experience in processing and in a molding environment, process development, qualification, validation of molds, etc.

next page

Showing results 1-20

All JobsMaster Molder Jobs

Master Molder information

See salary details

$9

$16

$23

How much do master molder jobs pay per hour?

As of Jul 13, 2026, the average hourly pay for master molder in the United States is $16.53, according to ZipRecruiter salary data. Most workers in this role earn between $14.42 and $17.79 per hour, depending on experience, location, and employer.

What is the difference between Master Molder vs Molder?

AspectMaster MolderMolder
CredentialsTypically requires advanced training or certification in molding techniquesRequires basic training or apprenticeship in molding
Work EnvironmentIndustrial manufacturing facilities, often overseeing complex projectsManufacturing plants, operating molding machines
Job ResponsibilitiesSupervising molding processes, quality control, training staffOperating molding equipment, setting up molds, producing parts

The main difference between a Master Molder and a Molder lies in experience, responsibilities, and skill level. Master Molders typically have advanced training and oversee complex molding operations, while Molders focus on operating equipment and producing parts. Both roles are essential in manufacturing, but the Master Molder holds a higher level of expertise and supervisory duties.

What are Master Molders?

Master Molders are highly skilled professionals who specialize in the process of injection molding, particularly in the plastics manufacturing industry. They are certified to manage and optimize molding processes, troubleshoot issues, and ensure high-quality production. Master Molders play a crucial role in setting up, operating, and maintaining molding machines, as well as training other technicians. Their expertise helps manufacturers improve efficiency, reduce waste, and maintain strict quality standards.

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

To thrive as a Master Molder, you typically need advanced knowledge of injection molding processes, problem-solving abilities, and certification such as Master Molder I or II from recognized organizations. Proficiency in using molding machines, process monitoring software, and quality control systems is essential. Attention to detail, strong communication, and a commitment to continuous improvement are soft skills that set top performers apart. These skills and qualifications ensure optimal production efficiency, minimized defects, and consistent quality in manufacturing environments.

What are some typical challenges Master Molders face when troubleshooting injection molding processes?

Master Molders often encounter challenges such as inconsistent part quality, machine malfunctions, or material variations. Troubleshooting requires a deep understanding of mold design, machine parameters, and the properties of different plastics. Effective communication with engineers, maintenance staff, and quality control teams is essential to quickly identify root causes and implement solutions. Staying up-to-date with the latest molding technologies and techniques also helps Master Molders resolve issues efficiently and maintain high production standards.
More about Master Molder jobs
What job categories do people searching Master Molder jobs look for? The top searched job categories for Master Molder jobs are:
Master Molder jobs near you
Infographic showing various Master Molder job openings in the United States 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 $34,387 per year, or $16.5 per hour.
Process Technician - Injection Molding (2nd Shift)

Process Technician - Injection Molding (2nd Shift)

Hyundai Mobis

Montgomery, AL

$24.75 - $29.75/hr

Full-time

Posted 12 days ago

Hyundai Mobis rating

7.3

Company rating: 7.3 out of 10

Based on 28 frontline employees who took The Breakroom Quiz

Job description

Overview

Summary

The Process Technician is responsible for Injection Molding startup, mold replacement setup, launching of new product series, shutdown procedures, and maintenance and modification of parameter settings for optimum production.

Responsibilities

Essential Functions (To perform within this position successfully, the incumbent must be able to perform each essential duty satisfactorily. Other duties may be assigned.)

  • Actively participate in all safety, quality, and production related meetings required, as well as promote safety throughout the department
  • Actively follow and promote use of lock out tag out, and undergo annual recertification training as required
  • Verify program, mold, End of Arm Tooling (EOAT), and resin are correct prior to starting production after a mold change has been performed
  • Verify correct program is loaded, all connections are properly made, and all sequences are appropriate for tool being set
  • Follow proper startup procedures to ensure tool does not flash on first shot or run excessive scrap due to defects
  • Follow proper shutdown procedures and ensure press will be ready for production at next startup
  • Assist mold setters and maintenance personnel in methods to improve accuracy and reduce scrap and downtime
  • Follow 5 piece inspection procedures on all new startups with other Team Members involved
  • Complete all production related documents in a timely manner
  • Perform periodic quality inspections on all molding presses throughout the shift
  • Inspect all parts based on Mobis quality criteria
  • Immediately report any conditions that will cause safety, quality, or production related issues
  • Observe all safety rules and policies at all times, including properly wearing correct personal protective equipment
  • Maintain and improve housekeeping in assigned areas (purging, scrap parts, material spills, etc.)Assist in training of new Team Members
  • Transfer information daily to the following shift concerning all quality issues, process changes, or any other quality or production concerns
  • Prompt, regular, predictable attendance
  • Physical presence at work during all scheduled work hours
  • Overtime and weekend work as required
  • All other job duties assigned
Qualifications

Basic Qualifications

Required Education & Experience:

  • High School Diploma or equivalent plus four years of experience working with injection molding machines utilizing hot runner systems and valve gate sequencing.

 

Required Knowledge, Skills, & Abilities:

  • Working knowledge of robot teaching and programming
  • Thorough understanding of injection molding processes
  • Ability to perform preventive maintenance on end-of-arm tools
  • Excellent written and verbal communication skills
  • Strong problem-solving and analytical abilities
  • Proficiency in Microsoft Excel, Word, and PowerPoint

 

Preferred Education & Experience:

  • Experience with large tonnage molding machines (2000 tons and larger)
  • Experience with Engel Presses

 

Certificates, Licenses, and Registrations Preferred:

  • Master Molder 1 and 2
  • Fanuc Robot Certification
  • RJG Certification

 

Working Conditions:

  • Work is 90% in production area; 10% in office
  • Overtime as needed
  • Traversing around production floor
Employment Type: FULL_TIME

What Hyundai Mobis employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Apply