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Rjg Master Molder Jobs (NOW HIRING)

Freudenberg Group

Process Technician

Baldwin Park, CA · On-site

$35 - $40/hr

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

MANAR INC

Molding Process Technician-GTR

Edinburgh, IN · On-site

$50K - $65K/yr

... and RJG Master Molder • Setting and adjusting processing parameters such as: * Temperature * Pressure * Injection speed * Hold pressure * Cooling time * Understanding of mold design and ...

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.

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 ...

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 ...

htna

Process Engineer 2

Milwaukee, WI · On-site

RJG Master Molder (I) required or ability to obtain within first year of employment. * 5+ years of relevant industry experience required. * 2+ years of sampling/process development experience ...

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 • ...

Just In Time Staffing LLC

Be Seen First

Process Technician

Streamwood, IL · On-site

$26 - $28/hr

RJG, Master Molder, or similar scientific molding experience is a plus, but not required. * Ability to interpret molding graphs and process information. * Experience working with robotics or other ...

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.

HellermannTyton

Process Engineer 2

Milwaukee, WI · On-site

$80 - $100/hr

RJG Master Molder (I) required or ability to obtain within first year of employment. * 5+ years of relevant industry experience required. * 2+ years of sampling/process development experience ...

Clayens

Injection Molding Process Engineer

Greeneville, TN · On-site

$80 - $100/hr

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

HellermannTyton

$80 - $100/hr

RJG Master Molder (I) required or ability to obtain within first year of employment. * 5+ years of relevant industry experience required. * 2+ years of sampling/process development experience ...

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Rjg Master Molder information

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How much do rjg master molder jobs pay per hour?

As of Sep 8, 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 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 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 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.

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.

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Rjg Master Molder jobs near you
Infographic showing various Rjg Master Molder job openings in the United States as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 87% Full Time, 9% Part Time, and 2% Contract. Highlights an 73% Physical, 2% Hybrid, and 25% Remote job distribution, with an average salary of $34,387 per year, or $16.5 per hour.

Process Technician

Baldwin Park, CA • On-site

Freudenberg Group
See more jobs at Freudenberg Groupexternal

$35 - $40/hr

Full-time

Re-posted 25 days ago

Job description

Working at Freudenberg: We will wow your world!
Responsibilities:
The incumbent is an experienced, hands-on technician, responsible for supporting injection molding operations, tooling performance, hot runner systems, mold troubleshooting, process stability, and production efficiency. The role serves as a technical resource for production teams, process technicians, tooling personnel, maintenance, engineering, and quality.
  • Set up, start up, troubleshoot, and optimize injection molding processes to support safe, efficient, and repeatable production.
  • Identify and resolve molding defects such as flash, short shots, burns, splay, sink, voids, dimensional variation, contamination, gate issues, and cosmetic defects.
  • Apply advanced knowledge of molds, tooling construction, mold alignment, parting lines, venting, gate conditions, ejector systems, and wear-related tooling issues.
  • Troubleshoot hot runner systems, including heaters, thermocouples, nozzles, manifolds, temperature controllers, wiring, connector issues, and related process symptoms.
  • Work with process engineering, tooling, maintenance, and quality teams to determine root cause and implement practical corrective actions.
  • Support mold trials, process development, process transfers, and production start-ups for new or existing molded components.

Qualifications:
  • High school diploma or equivalent.
  • RJG Master Molder I certification.
  • Minimum 2 years of experience directly related to the duties and responsibilities specified.
  • Injection molding process for thermoplastics
  • Knowledge of practical use of Scientific Process Development Principles.
  • Proficient in Microsoft Office Suite, specifically word and excel.

Preferred:
  • 2-year degree in engineering or related field
  • Experience working in Cleanroom environment
  • Experience working medical device manufacturing industry

Expected salary range for this position is $35 to $40 hourly, depending on skills, experience, and qualifications. Compensation determined by the candidate's qualifications, experience, education, and overall alignment with the role's responsibilities.
The Freudenberg Group is an equal opportunity employer that is committed to diversity and inclusion. Employment opportunities are available to all applicants and associates without regard to race, color, religion, creed, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity or expression, national origin, ancestry, age, mental or physical disability, genetic information, marital status, familial status, sexual orientation, protected military or veteran status, or any other characteristic protected by applicable law.
Freudenberg Medical LLC

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