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Internship Injection Molding Process Engineer Jobs in Trenton, NJ

HotRun Inc.

Manufacturing Manager

Philadelphia, PA · On-site

$140K - $170K/yr

Partner with Scheduling, Engineering, Quality, Maintenance and Customer Service to ensure customer ... Solid understanding of injection molding processes, tooling and production operations. * Experience ...

Genesis Global Group

3rd Shift Lead

Bristol, PA · On-site

$13.50 - $16.75/hr

The area of responsibility for this role is wide and thus requires knowledge of various injection molding processes. The ideal candidate must be competent and able to perform many types of ...

Genesis Global Group

2nd Shift Lead

Bristol, PA · On-site

$13.50 - $16.75/hr

The area of responsibility for this role is wide and thus requires knowledge of various injection molding processes. The ideal candidate must be competent and able to perform many types of ...

LMT Mercer Group Inc

Skilled Tool & Die Maker

NJ · On-site

$30 - $45/hr

Build, repair, and maintain injection molds used in plastic part production. * Read and interpret technical drawings, CAD models, and engineering specifications to fabricate precision tooling.

Zeus

Process Engineer

Branchburg, NJ · On-site

$120K/yr

Plastics experience (Injection / Extrusion) / Extrusion experience (Rubber, etc) / Medical device process is preferred 4 yr. Engineering Degree, preferably Mechanical Engineering Experience with Lean ...

Aerotek

Extrusion Machine Operator

Lambertville, NJ · On-site

$50K - $70K/yr

Experience with injection molding processes. * Experience with blow molding processes. * Ability to safely operate extrusion machines and related production equipment. * Ability to safely operate a ...

New

Aerotek

Extrusion Machine Operator

Lambertville, NJ

$50K - $70K/yr

Experience with injection molding processes. * Experience with blow molding processes. * Ability to safely operate extrusion machines and related production equipment. * Ability to safely operate a ...

New

Wood Plc

Senior Process Engineer

Philadelphia, PA · On-site +1

$104K - $135K/yr

Calculating loads for clean utilities and distribution design (water for injection, clean steam ... Coaching and support of other process engineers * Review of submittals and shop drawings * Response ...

Aerotek

Mold Maker

Somerset, NJ

$35 - $40/hr

... processes. Responsibilities * Machine, assemble, troubleshoot, and repair plastic injection molds. * Read and interpret engineering drawings, blueprints, CAD models, and technical specifications.

New

YO AI Labs

SolidWorks Expert - Remote

Philadelphia, PA · Remote

$40 - $130/hr

... processes including injection molding, sheet metal fabrication, CNC machining, casting, and forging. * Develop and maintain clear engineering documentation to support design revisions and AI model ...

New

LMT Mercer Group Inc

CNC Machine Programmer

NJ · On-site

$85K - $100K/yr

The ideal candidate will have experience programming CNC machines for the fabrication of components used in injection mold tooling. This role requires strong knowledge of machining process, CAD/CAM ...

Altium Packaging LLC

Machine Operator - 3rd Shift

Monroe, NJ · On-site

$17.50 - $21/hr

Operate blow-mold/PET/injection molding machines (including wheels, reciprocating or shuttle machines) to ensure production of quality bottles. * Adhere to quality control and to blow mold process ...

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All JobsInjection Molding Process Engineer JobsInternship Injection Molding Process Engineer JobsInternship Injection Molding Process Engineer Jobs in Trenton, NJ

Internship Injection Molding Process Engineer information

See Trenton, NJ salary details

$13

$22

$30

How much do internship injection molding process engineer jobs pay per hour?

As of Aug 13, 2026, the average hourly pay for internship injection molding process engineer in Trenton, NJ is $22.24, according to ZipRecruiter salary data. Most workers in this role earn between $18.32 and $26.01 per hour, depending on experience, location, and employer.

What does an internship injection molding process engineer do?

An Internship Injection Molding Process Engineer assists in the design, optimization, and troubleshooting of injection molding processes used to manufacture plastic parts. They work closely with senior engineers to set up and monitor molding machines, analyze process data, and help improve efficiency and product quality. Interns may also be involved in testing materials, supporting quality assurance, and documenting processes. This role provides hands-on experience in a manufacturing environment and helps interns develop technical and problem-solving skills relevant to plastics engineering.

What types of projects and hands-on experiences can an internship injection molding process engineer expect during their internship?

As an Internship Injection Molding Process Engineer, you can expect to work on a variety of projects such as optimizing molding parameters, assisting with troubleshooting production issues, and supporting process validation activities. You will likely collaborate closely with experienced engineers, production staff, and quality teams to ensure that molded parts meet specifications. Interns often gain hands-on experience by participating in mold trials, collecting process data, and contributing to continuous improvement initiatives. This role offers a valuable opportunity to develop technical skills in a manufacturing environment and gain insight into the daily challenges of process engineering.

What is the difference between Internship Injection Molding Process Engineer vs Injection Molding Process Engineer?

AspectInternship Injection Molding Process EngineerInjection Molding Process Engineer
Education & CertificationsTypically pursuing or recently completed relevant degree; minimal certificationsBachelor's or higher in engineering; certifications like Six Sigma may be preferred
Work EnvironmentInternship setting, supervised, learning-focusedFull-time professional role, responsible for process optimization
ResponsibilitiesAssisting with process setup, data collection, learningDesigning, implementing, and optimizing injection molding processes

The main difference lies in experience and responsibility level. An internship role is designed for learning and gaining experience, while a full-time injection molding process engineer handles process development and optimization independently.

What are the key skills and qualifications needed to thrive as an internship injection molding process engineer?

To thrive as an Internship Injection Molding Process Engineer, you need a solid understanding of polymer science, mechanical engineering principles, and process optimization, typically supported by coursework or a degree in engineering. Familiarity with CAD software, injection molding machinery, and quality control systems is essential, and experience with tools like SolidWorks or AutoCAD is often preferred. Strong analytical thinking, problem-solving, and effective communication skills set candidates apart in this role. These skills and qualities are crucial for ensuring efficient production, high-quality parts, and continual process improvement in a manufacturing environment.

What is the role of an internship injection molding process engineer?

An internship injection molding process engineer assists in developing and optimizing manufacturing processes for plastic parts using injection molding machines. They analyze process parameters, troubleshoot issues, and support quality control, often gaining experience with tools like CAD software and process monitoring systems. The role provides practical exposure to manufacturing workflows and process improvement techniques.
Internship Injection Molding Process Engineer jobs near you

Manufacturing Manager

HotRun Inc.

Philadelphia, PA • On-site

$140K - $170K/yr

Full-time

Re-posted 6 days ago

Job description

Manufacturing Manager

Injection Molding | Leadership Development | Path to Plant Manager

We are seeking a Manufacturing Manager to lead production operations at a growing injection molding facility east of Philadelphia.

This is much more than a traditional production management role. This hire is a succession plan to develop into the Plant Manager role in 4 years. The successful candidate will gain exposure to all aspects of running a manufacturing operation while leading daily production.

Why This Opportunity Stands Out
  • Clearly defined succession plan to become Plant Manager
  • Direct mentorship from an experienced Plant Manager
  • Approximately 45-person manufacturing facility
  • Continued investment in new injection molding equipment, including clean room manufacturing capabilities
  • Opportunity to broaden leadership responsibilities beyond production into overall plant operations
Responsibilities
  • Lead day-to-day production operations to achieve safety, quality, delivery and productivity objectives.
  • Drive Lean Manufacturing, 5S and continuous improvement initiatives throughout the operation.
  • Coach, mentor and develop supervisors and production personnel.
  • Optimize labor utilization, workflow and manufacturing efficiency.
  • Partner with Scheduling, Engineering, Quality, Maintenance and Customer Service to ensure customer expectations are met.
  • Support new product introductions and manufacturing process improvements.
  • Monitor production metrics including efficiency, scrap, quality and labor performance.
  • Foster a culture of accountability, teamwork and continuous improvement.
Qualifications
  • Strong leadership experience within an injection molding manufacturing environment.
  • Solid understanding of injection molding processes, tooling and production operations.
  • Experience leading supervisors and production teams.
  • Background implementing Lean Manufacturing and continuous improvement initiatives.
  • Ability to develop people while driving operational performance.
  • Excellent communication and problem-solving skills.
Compensation
  • Base salary: $140,000-$170,000
  • Bonus opportunity
  • Relocation assistance available for the right candidate

This opportunity is ideal for an ambitious manufacturing leader who wants to move beyond production management and prepare for full Plant Manager responsibilities over the next several years.