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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 ...

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 ...

Canon Virginia, Inc.

Sr Engineer

Newport News, VA · On-site

$96K - $121K/yr

... Master Molder I certified or equivalent. - RJG Master Molder II or equivalent preferred. - Able to guide less experienced engineers to perform IQ, OQ, and PQ validation process. - Proficient in ...

Canon Careers

Sr Engineer

Newport News, VA · On-site

$96K - $121K/yr

... Master Molder I certified or equivalent. - RJG Master Molder II or equivalent preferred. - Able to guide less experienced engineers to perform IQ, OQ, and PQ validation process. - Proficient in ...

Tg Missouri Corporation

RJG Master Molder Certification is preferred * Six Sigma Green Belt is preferred Experience * 1-4 years of experience in an engineering role is required * 1 to 4 years of experience in injection ...

Clayens

Injection Molding Process Engineer

Greeneville, TN · On-site

$70K - $90K/yr

RJG Master Molder Certification or equivalent Scientific Molding certification. * Experience with automation systems, robotics, and machine vision technologies. * Experience in automotive, medical ...

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Master Molder information

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How much do master molder jobs pay per hour?

As of Sep 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 a master molder?

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?

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.

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.

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Master Molder jobs near you
Infographic showing various Master Molder job openings in the United States as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 88% Full Time, 8% Part Time, and 2% Contract. Highlights an 72% Physical, 2% Hybrid, and 26% Remote job distribution, with an average salary of $34,387 per year, or $16.5 per hour.

Plastics Process Engineer

Buena, NJ • On-site

Comar
Plastics Product Manufacturing • 501 - 1,000 employees
Learn more about Comarexternal

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 17 days ago

Comar rating

9.0

Company rating: 9.0 out of 10

Based on 10 frontline employees who took The Breakroom Quiz

Job description

Process Engineer
Hours: full-time position.
Competitive pay & benefits: health, dental, vision, paid time off, 401k with match...
and more!
"Come Build a Career with our Growing, Fast-Paced, Customer-Focused Company that fosters
Training and Professional Development!"
WHAT YOU WILL DO:
"Quality & Safety are Top Comar Priorities"
• Responsible for sampling molds and for the process development of all new and transferred injection molds.
• Work with the Engineering, Quality and Production teams to develop molds capable of running highly repeatable and robust molding processes.
• Employ science-based process development procedures and validation protocols.
• Work with other company teams to improve overall mold development and validation procedures.
• Assist in developing and teaching Cycle Tech Training program.
Safety and Cleanliness
"We have put in place Covid-19 practices for our employees' safety"
• Follow all plant safety guidelines and GMP (Good Manufacturing Practices).
• Maintain a clean and safe work area and report any unsafe conditions to supervisor.
• Wear company issued personal protective equipment (PPE) such as gloves, masks, hairnets, earplugs.
Quality
• Meet or exceed Quality standards consistently.
• Report any quality problems immediately.
WHO WE ARE LOOKING FOR:
"A Comar employee who will represent the customer and be the consumer's advocate"
• Two or four degree preferred, but will consider High School diploma or general education degree (GED) with relevant experience.
• Hands-on Processing Engineering experience required.
• At least 3-5 years related experience and/or training in mold development.
• Working knowledge of Scientific Molding practices with a plus for having RJG Master Molder or similar certification, eDART cycle graph interpretation.
• Thorough understanding of injection mold tooling and the IQ/OQ/PQ validation process.
Preferred:
• Knowledge of IQMS.
• Previous experience in related functions and an ISO 9001/13485 environment.
• Preference to working in Medical Devices but will consider similar highly regulated environments.
Certifications or Licenses:
• Master Molder 1 certificate desired.
Can You...?
• Read and interpret documents such as safety rules, operating and maintenance instructions, blueprints, and procedure manuals.
• Carry out instructions furnished in written, oral, or diagram form.
• Write routine reports and correspondence.
• Speak effectively before groups of customers or employees.
• Add, subtract, multiply, and divide in all units of measure, using whole numbers, commons fractions, and decimals. Compute rate, ratio, and percent.
Do you have the Physical Stamina to...?
• Stand, walk, sit, and bend throughout the work shift.
• Regularly use hands and fingers to handle or feel; reach with hands and arms.
• Frequently lift and/or move up to 50 pounds with equipment.
• Use close vision, color vision, peripheral vision, depth perception, and adjust focus.
WORK ENVIRONMENT
Frequently exposed to moving mechanical parts. The noise level in the work environment is moderate and requires the use of hearing protection.
Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws.
For further information, please review the Know Your Rights notice from the Department of Labor.

What Comar employees say

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About Comar

Sourced by ZipRecruiter

Industry

Plastics product manufacturing

Company size

501 - 1,000 Employees

Headquarters location

Voorhees Township, NJ, US

Year founded

1949

Social media

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