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Master Molder Jobs (NOW HIRING)

ConMet

Process Engineer - Injection Molding

Canton, NC · On-site

Master Molder 1 certification * Master Molder 2 certification Employer will not sponsor visas for position. Applicants must be currently authorized to work in the US on a full-time basis. About ...

ConMet

Process Engineer - Injection Molding

Canton, NC · On-site

Master Molder 1 certification * Master Molder 2 certification Employer will not sponsor visas for position. Applicants must be currently authorized to work in the US on a full-time basis. About ...

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 ...

Byrne

Injection Molding Process Technician II

Rockford, MI · On-site

$21.25 - $25.50/hr

... Master Molder Certification or equivalent experience is preferred • Strong understanding of process controllers, robotics, injection molding equipment, hydraulics and/or electrical systems • Good ...

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How much do master molder jobs pay per hour?

As of Jul 7, 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.
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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.

Thermoplastics Molding Setup & Optimization Technician

Klein Tools Manufacturing

Mansfield, TX • On-site

$30 - $45/hr

Other

Posted 4 days ago

New

Job description

Thermoplastics Molding Setup & Optimization Technician

Are you the technician everyone calls when a press won’t cooperate, a cycle time creeps up, or a part drifts out of spec? Step into a role where your setup savvy and troubleshooting instincts keep production humming.

Why this role matters
  • Reduce cycle times and stabilize processes to deliver quality parts on schedule.
  • Bridge Operations and Engineering by executing trials for new molds and alternative materials.
  • Protect uptime by tackling issues fast and maintaining equipment readiness.
What you will tackle
  • End-to-end injection molding tasks: set-up, start-up, shutdown, troubleshooting, maintenance, and workflow management.
  • Execute the production plan, including timely mold and/or material changes; seek and implement cycle time reductions.
  • Perform process troubleshooting; set tooling and material parameters; inspect parts; and make adjustments to ensure conformity and quality.
  • Partner with Engineering on current/new molds for alternative material sampling and new product sampling.
  • Complete and verify documentation: start-up and in-process product inspection sheets, process monitoring logs, and changeover checklists.
  • Prepare auxiliary equipment before start-up: circulators, grinders, thermolators, hot runner controllers, material dryers, material loaders, etc.
  • Support other tasks consistent with the role as needed.
Must-haves
  • High school diploma or equivalent and five (5) years of relevant experience.
  • Proven experience setting up and operating injection molding machines and auxiliary equipment, including robots.
  • Ability to diagnose process issues, perform minor repairs, manage quality, and sustain high machine uptime.
  • Basic English reading, writing, speaking, and comprehension.
  • Microsoft Office skills (Excel, Outlook, Word).
  • Proficiency with measuring instruments: micrometers, vernier calipers, Acu-Gauge.
  • Blueprint reading and interpretation.
  • Master Molder certification preferred.
Physical & visual requirements
  • Potential exposure to radio frequencies that may be dangerous for individuals with a pacemaker—consult your doctor.
  • Ability to stand, walk, or sit; use hands to finger, handle, or feel; reach with hands/arms; climb stairs; balance; stoop, kneel, crouch, or crawl; talk/hear; taste/smell.
  • Occasional lifting/moving up to 35 lbs.
  • Vision: close, distance, color, peripheral, depth perception, and focus adjustment.
  • Pushing/pulling (assisted) up to 2 hrs/day (interruptive); lifting up to 35 lbs. up to 2 hrs/day (interruptive).
Proficiencies
  • Injection Molding Experience
  • Blueprint Reading