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Senior Injection Molding Process Engineer Jobs in Philadelphia, PA

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.

New

PerkinElmer

Senior Process Engineer

Collegeville, PA · On-site

$103K - $133K/yr

Job Title Senior Process Engineer Location(s) GSK (Collegeville) - Customer Site PA We are seeking a highly motivated and ambitious candidate to join the PerkinElmer OneSource Scientific Services ...

ITW Brooks Instrument

Senior Process Engineer

Hatfield, PA · On-site

$105K - $135K/yr

Basic Function The Senior Process Engineer is a hands-on, multi-disciplinary engineering role within the Brooks Instrument New Product Development team. The position requires demonstrated competence ...

PerkinElmer

Senior Process Engineer

Collegeville, PA

$103K - $133K/yr

Job Title Senior Process Engineer Location(s) GSK (Collegeville) - Customer Site PA We are seeking a highly motivated and ambitious candidate to join the PerkinElmer OneSource Scientific Services ...

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All JobsInjection Molding Process Engineer JobsSenior Injection Molding Process Engineer JobsSenior Injection Molding Process Engineer Jobs in Philadelphia, PA

Senior Injection Molding Process Engineer information

See Philadelphia, PA salary details

$75.7K

$122.2K

$172.1K

How much do senior injection molding process engineer jobs pay per year?

As of Aug 8, 2026, the average yearly pay for senior injection molding process engineer in Philadelphia, PA is $122,217.00, according to ZipRecruiter salary data. Most workers in this role earn between $104,900.00 and $135,700.00 per year, depending on experience, location, and employer.

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

To thrive as a Senior Injection Molding Process Engineer, you need a deep understanding of polymer science, mold design, process optimization, and typically a degree in engineering or a related field. Expertise with CAD software, process simulation tools, and familiarity with quality systems like ISO 9001 are commonly required, along with certifications such as RJG or Six Sigma. Strong analytical thinking, problem-solving abilities, and effective communication are essential soft skills for collaborating with cross-functional teams and troubleshooting production issues. These skills ensure efficient production, high-quality output, and continuous improvement in complex manufacturing environments.

What does a senior injection molding process engineer do?

A Senior Injection Molding Process Engineer is responsible for designing, optimizing, and troubleshooting the injection molding process used to manufacture plastic parts. They oversee process improvements, ensure product quality, and collaborate with cross-functional teams to meet production goals. Additionally, they may develop and implement new molding technologies, train staff, and support maintenance of equipment to ensure efficient and reliable operations.

What is the difference between Senior Injection Molding Process Engineer vs Injection Molding Technician?

AspectSenior Injection Molding Process EngineerInjection Molding Technician
CredentialsBachelor's degree in engineering or related field, certifications in process optimizationTechnical diploma or associate degree, on-the-job training
Work EnvironmentDesigning processes, analyzing data, improving production efficiencyOperating machinery, performing setup and maintenance
ResponsibilitiesProcess development, troubleshooting, process validationMachine operation, quality checks, routine maintenance

The Senior Injection Molding Process Engineer focuses on process design, optimization, and troubleshooting, requiring higher-level technical skills and education. In contrast, the Injection Molding Technician handles daily machine operation and maintenance tasks. Both roles are essential in the manufacturing environment but differ in scope and responsibilities.

What are the common challenges faced by senior injection molding process engineers when introducing a new mold into production?

Senior Injection Molding Process Engineers often encounter challenges such as optimizing process parameters for new molds, ensuring part quality meets specifications, and troubleshooting issues like warpage or incomplete filling. Collaboration with design, tooling, and quality teams is essential to address these challenges and implement effective solutions quickly. Additionally, balancing production efficiency with consistent quality requires careful monitoring and adjustment during the initial production runs.
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Senior Injection Molding Process Engineer jobs near you
Infographic showing various Senior Injection Molding Process Engineer job openings in Philadelphia, PA as of August 2026, with employment types broken down into 89% Full Time, 9% Contract, and 2% Nights. Highlights an 90% In-person, 4% Hybrid, and 6% Remote job distribution, with an average salary of $122,217 per year, or $58.8 per hour.

Skilled Tool & Die Maker

LMT Mercer Group Inc

NJ • On-site

$30 - $45/hr

Full-time

Posted 3 days ago

New

Job description

Job Title: Tool and Die Maker
Job Summary:
We are looking for a highly skilled Tool and Die Maker with a strong background in injection mold building to join our precision manufacturing team. The ideal candidate will have experience fabricating, maintaining, and repairing tools, dies, and molds used in the production of plastic components. This role requires expertise in machining, mold construction, and technical drawing interpretation.
Key Responsibilities:

  • 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.
  • Operate manual and CNC equipment including mills, lathes, grinders, and EDM machines.
  • Collaborate with engineering teams to improve mold designs and manufacturability.
  • Perform changeovers, preventative maintenance, and diagnostics on existing injection molds.
  • Ensure all work meets quality standards and adheres to safety protocols.
Qualifications:
  • Minimum of 5 years of experience in tool and die making, with emphasis on injection molding.
  • Skilled in using hand-fitting techniques to ensure components’ proper assembly and function.
  • Proficient in operating manual and CNC equipment, including mills, lathes, grinders, and Wire/Sinker EDM machines
  • Proficient in reading technical drawings and using precision measuring instruments.
  • Familiarity with the different injection, cooling, and ejection systems common in injection mold designs.
  • Ability to work independently and in a team-oriented environment.
  • Experience in TIG and/or precision laser welding is a plus.
Salary Range - $30 -$45 per hour

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