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Rjg Master Molder Jobs (NOW HIRING)

medplast

Process Engineer

San Antonio, TX · On-site

Certification from a school in advanced molding or RJG Master Molder 2 (or equivalent). * Certification in Basic Mold Flow (or equivalent) is a plus. * Certification in Master Molding 3 is a plus.

Freudenberg

Process Technician

Baldwin Park, CA

$40/hr

RJG Master Molder I certification. * Minimum 2 years of experience directly related to the duties and responsibilities specified. * Injection moldingprocessfor thermoplastics * Knowledge of practical ...

medplast

Process Engineer

San Antonio, TX · On-site

Certification from a school in advanced molding or RJG Master Molder 2 (or equivalent). * Certification in Basic Mold Flow (or equivalent) is a plus. * Certification in Master Molding 3 is a plus.

medplast

Process Engineer

San Antonio, TX

Certification from a school in advanced molding or RJG Master Molder 2 (or equivalent). * Certification in Basic Mold Flow (or equivalent) is a plus. * Certification in Master Molding 3 is a plus.

Comar

Plastics Process Engineer

Buena, NJ · On-site

... 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 ...

Byrne

Injection Molding Process Technician II

Rockford, MI · On-site

$21.25 - $25.50/hr

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

Viant

Process Engineer

San Antonio, TX · On-site

Certification from a school in advanced molding or RJG Master Molder 2 (or equivalent). * Certification in Basic Mold Flow (or equivalent) is a plus. * Certification in Master Molding 3 is a plus.

TriMas Corporation

Process Engineer

Denver, CO · On-site

$100K - $107K/yr

RJG Master Molder I and/or II certification. Six Sigma or Lean Manufacturing training. Leadership or mentoring experience within a manufacturing environment. Compensation In compliance with all ...

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Rjg Master Molder information

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How much do rjg master molder jobs pay per hour?

As of Aug 9, 2026, the average hourly pay for rjg 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 are the key skills and qualifications needed to thrive as a RJG Master Molder, and why are they important?

To thrive as an RJG Master Molder, you need advanced knowledge of injection molding processes, strong troubleshooting abilities, and completion of RJG’s Master Molder certification. Familiarity with scientific molding principles, data acquisition systems, and specialized software like eDART is typically required. Attention to detail, analytical thinking, and effective communication are crucial soft skills for optimizing processes and collaborating with team members. These skills and qualifications ensure high-quality part production, process efficiency, and the ability to resolve complex molding challenges.

What is the difference between Rjg Master Molder vs Rjg Molder?

AspectRjg Master MolderRjg Molder
CertificationsTypically requires advanced certifications or specialized trainingRequires standard mold-making certifications
Work EnvironmentSupervises mold production, quality control, and team coordinationPerforms mold fabrication, assembly, and maintenance
Industry UsageOften in leadership or senior roles within manufacturing plantsOperates as a skilled technician in mold shops

The Rjg Master Molder generally holds more advanced certifications and oversees mold production processes, while the Rjg Molder focuses on hands-on mold fabrication and maintenance. The Master Molder often supervises teams and ensures quality standards, whereas the Molder executes the technical tasks. Both roles are essential in the mold-making industry but differ mainly in responsibility level and scope of work.

What is a RJG Master Molder?

An RJG Master Molder is a professional who has completed advanced training and certification through RJG Inc., a company specializing in injection molding education and technology. Master Molders are highly skilled in scientific molding techniques, process optimization, troubleshooting, and quality control within the injection molding industry. Their expertise enables them to optimize molding processes, reduce defects, and ensure consistent, high-quality plastic parts. This certification is widely recognized in the plastics industry and often required for leadership or technical roles in manufacturing environments.

What are some typical challenges faced by an RJG Master Molder, and how can they be addressed on the job?

RJG Master Molders often encounter challenges such as troubleshooting complex molding defects, optimizing process parameters, and maintaining consistent quality in high-volume production. To address these issues, they rely on their advanced training in scientific molding principles and collaborate closely with process engineers, quality teams, and production staff. Staying up to date with new molding technologies and participating in continuous improvement initiatives also help Master Molders overcome these challenges and drive successful outcomes.
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What job categories do people searching Rjg Master Molder jobs look for? The top searched job categories for Rjg Master Molder jobs are:
Rjg Master Molder jobs near you
Infographic showing various Rjg Master Molder job openings in the United States as of August 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.

Plastics Process Engineer

Comar Engineering Services

Buena, NJ

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 12 days ago

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.

Apply