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Senior Injection Molding Process Engineer Jobs in Illinois

JST Corporation

Molding Process Technician

Waukegan, IL · On-site

$30 - $32/hr

Molding Process Technician We are seeking an experienced Molding Process Technician to support precision injection molding operations. This role is responsible for setting up, operating, and ...

Hoffer Plastics

Process Engineer

South Elgin, IL · On-site

$85K - $115K/yr

Hoffer Plastics is hiring for " Process Engineer ", " 1st shift ". Starting Pay $85k - $115K (based ... Review part and mold designs from an injection molding and Design for Manufacturing (DFM ...

Hoffer Plastics

Process Engineer

South Elgin, IL · On-site

$85K - $115K/yr

Hoffer Plastics is hiring for " Process Engineer", "1st shift". Starting Pay $85k - $115K (based on ... Review part and mold designs from an injection molding and Design for Manufacturing (DFM ...

Hoffer Plastics

Process Engineer

South Elgin, IL · On-site

$85K - $115K/yr

Hoffer Plastics is hiring for " Process Engineer ", " 1st shift ". Starting Pay $85k - $115K (based ... Review part and mold designs from an injection molding and Design for Manufacturing (DFM ...

Hoffer Plastics

Process Engineer

South Elgin, IL · On-site

$85K - $115K/yr

Hoffer Plastics is hiring for " Process Engineer ", " 1st shift ". Starting Pay $85k - $115K (based ... Review part and mold designs from an injection molding and Design for Manufacturing (DFM ...

Nemera

Injection Process Manager

Buffalo Grove, IL · On-site

$120K - $140K/yr

Lead all injection molding process engineering and processing activities across multiple plastic injection molding sites. * Manage and organize the activity of project specific Injection team ...

Nemera

Injection Process Manager

Buffalo Grove, IL · On-site

$120K - $140K/yr

Lead all injection molding process engineering and processing activities across multiple plastic injection molding sites. * Manage and organize the activity of project specific Injection team ...

Nemera

Injection Process Manager

Buffalo Grove, IL · On-site

Lead all injection molding process engineering and processing activities across multiple plastic injection molding sites. * Manage and organize the activity of project specific Injection team ...

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Senior Injection Molding Process Engineer information

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 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 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.

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 most commonly searched types of Injection Molding Process Engineer jobs in Illinois?

The most popular types of Injection Molding Process Engineer jobs in Illinois are:

What are popular job titles related to Senior Injection Molding Process Engineer jobs in Illinois?

For Senior Injection Molding Process Engineer jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Senior Injection Molding Process Engineer jobs in Illinois look for?

The top searched job categories for Senior Injection Molding Process Engineer jobs in Illinois are:

What cities in Illinois are hiring for Senior Injection Molding Process Engineer jobs?

Cities in Illinois with the most Senior Injection Molding Process Engineer job openings:

Senior Injection Molding Process Engineer jobs near you
Infographic showing various Senior Injection Molding Process Engineer job openings in Illinois as of August 2026, with employment types broken down into 81% Full Time, 14% Contract, and 5% Nights. Highlights an 98% In-person, and 2% Remote job distribution.

Molding Process Technician

JST Corporation

Waukegan, IL • On-site

$30 - $32/hr

Full-time

Re-posted 23 days ago

Job description

Molding Process Technician

We are seeking an experienced Molding Process Technician to support precision injection molding operations. This role is responsible for setting up, operating, and optimizing molding machines and auxiliary equipment while maintaining JST quality, safety, and production standards.

This position requires advanced technical knowledge of injection molding processes, tooling, and systematic molding methods, including RJG.

What You’ll Do

  • Set up, start, stop, and troubleshoot precision molding machines and auxiliary equipment

  • Perform mold installation and removal, material handling, and process startups

  • Clean, adjust, and maintain molding dies to meet quality specifications

  • Establish and document process conditions using systematic molding techniques

  • Adjust process parameters to maintain quality and production targets

  • Sample new molds and plastic resins

  • Use RJG to establish and validate molding processes

  • Perform preventative and minor maintenance on molding equipment

  • Conduct required quality checks and inspections using precision measuring equipment

  • Update molding boards with real-time production, priorities, and maintenance data

  • Support 5S, Kaizen, and continuous improvement initiatives

  • Identify cost-saving opportunities and process improvements

  • Maintain a clean and safe work environment

  • Perform all responsibilities of Process Technician B & C

What We’re Looking For

  • Advanced knowledge of injection molding processes and tooling

  • Ability to make independent decisions related to quality, machine operation, and processing adjustments

  • Strong math skills including percentages, conversions, and basic geometry

  • Proficiency with precision measuring equipment (micrometers, calipers, comparators)

  • Experience using Microsoft Excel and Word

  • Strong multitasking and problem-solving skills

  • Proficient in English (reading, writing, speaking); Spanish a plus

  • Willingness to participate in ESL/SSL classes if required

Apply