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Plastic Injection Molding Process Engineer Jobs in Milwaukee, WI

Raya Workforce

Toolmaker

Menomonee Falls, WI · On-site

$25 - $50/hr

Build, assemble, fit, and repair precision plastic injection molds. * Perform preventive ... molding processes. * Experience with CAD/CAM software. * CNC machining or CNC programming ...

htna

Principal Process Engineer

Milwaukee, WI

The role focuses on optimizing the injection molding process by leveraging the latest cutting-edge technologies the industry has to offer. The Principal Process Engineer will focus on spearheading ...

htna

Senior Project Engineer

Milwaukee, WI

$102K - $133K/yr

... process validation. * Understands injection mold design, mold materials, mold components, and manufacturing methods. * Able to coordinate and interpret plastic flow analyses. * Excellent ...

Simos

Process Technician

Richfield, WI · On-site

$30 - $40/hr

Partner with Process Engineers and Tooling teams to improve performance. * 5-7 years of plastics injection molding experience. * Forklift and Lockout/Tagout certification. * Basic hydraulic ...

Simos

Process Technician

Germantown, WI · On-site

$30 - $40/hr

Partner with Process Engineers and Tooling teams to improve performance. * 5-7 years of plastics injection molding experience. * Forklift and Lockout/Tagout certification. * Basic hydraulic ...

Aptar Group

Process Technician Lead

Mukwonago, WI · On-site

Stabilize high-cavitation molds through structured analysis of the four plastic variables (heat ... Escalate chronic instability to Process Engineering with structured diagnostic documentation.

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All JobsPlastic Injection Molding Process Engineer JobsPlastic Injection Molding Process Engineer Jobs in Milwaukee, WI

Plastic Injection Molding Process Engineer information

See Milwaukee, WI salary details

$48.8K

$90.7K

$140.4K

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

As of Aug 8, 2026, the average yearly pay for plastic injection molding process engineer in Milwaukee, WI is $90,660.00, according to ZipRecruiter salary data. Most workers in this role earn between $73,400.00 and $101,500.00 per year, depending on experience, location, and employer.

What does a plastic injection molding process engineer do?

A Plastic Injection Molding Process Engineer is responsible for developing, optimizing, and troubleshooting the injection molding process used to manufacture plastic parts. They design process parameters, select appropriate materials, and ensure the quality and efficiency of production. These engineers collaborate with design, production, and quality teams to resolve technical issues, implement process improvements, and maintain consistent product quality.

What are some typical challenges faced by plastic injection molding process engineers during new product launches?

Plastic Injection Molding Process Engineers often encounter challenges such as optimizing process parameters to achieve consistent part quality and minimizing cycle time during new product launches. They must collaborate closely with design, tooling, and production teams to troubleshoot issues like warping, sink marks, or incomplete fills. Adjusting machines for new molds, validating process stability, and meeting tight deadlines while ensuring customer specifications are met can also be demanding. Strong problem-solving skills and effective communication are essential to navigate these complexities.

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

To thrive as a Plastic Injection Molding Process Engineer, you need a solid background in mechanical or manufacturing engineering, with expertise in polymer materials and molding processes, often supported by a relevant engineering degree. Familiarity with CAD software, mold flow simulation tools, and quality management systems like Six Sigma or ISO standards is typically required. Strong problem-solving, analytical thinking, and effective communication skills help engineers optimize processes and work collaboratively with cross-functional teams. These capabilities are crucial for ensuring efficient production, minimizing defects, and meeting quality and safety standards in a highly technical manufacturing environment.
What are popular job titles related to Plastic Injection Molding Process Engineer jobs in Milwaukee, WI? For Plastic Injection Molding Process Engineer jobs in Milwaukee, WI, the most frequently searched job titles are:
What job categories do people searching Plastic Injection Molding Process Engineer jobs in Milwaukee, WI look for? The top searched job categories for Plastic Injection Molding Process Engineer jobs in Milwaukee, WI are:
Plastic Injection Molding Process Engineer jobs near you
Infographic showing various Plastic Injection Molding Process Engineer job openings in Milwaukee, WI as of August 2026, with employment types broken down into 1% As Needed, 79% Full Time, 15% Part Time, and 5% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $90,660 per year, or $43.6 per hour.

Toolmaker

Raya Workforce

Menomonee Falls, WI • On-site

$25 - $50/hr

Full-time

Posted 8 days ago

Job description

Job Title: Toolmaker 

Location: Menomonee Falls, WI
Job Type: Full-Time | Onsite | 1st Shift
Salary: $25–$50/hour (Based on Experience)

About the Role

We are seeking an experienced Toolmaker to join a precision manufacturing team specializing in the design, build, maintenance, and repair of plastic injection molds used in high-volume production. This is a hands-on role for someone who takes pride in craftsmanship, precision, and solving complex tooling challenges.

The ideal candidate will have experience building and repairing injection molds, interpreting engineering drawings, operating manual machining equipment, and working closely with engineering and production teams to ensure tooling performs at the highest level.

Key Responsibilities
  • Build, assemble, fit, and repair precision plastic injection molds.
  • Perform preventive maintenance and troubleshooting on molds to maximize performance and tool life.
  • Interpret engineering drawings, blueprints, CAD models, and tooling specifications.
  • Operate manual machine shop equipment and precision measuring instruments.
  • Support mold trials, testing, and validation activities.
  • Diagnose tooling issues and implement effective repairs or modifications.
  • Maintain accurate documentation of mold repairs, maintenance, and engineering changes.
  • Ensure all tooling meets quality, safety, and dimensional requirements.
  • Collaborate with engineering and production teams to improve tooling performance and manufacturing efficiency.
  • Maintain a clean, organized, and safe work environment.
Required Qualifications
  • Minimum 3 years of Toolmaker or Mold Maker experience.
  • Hands-on experience building, assembling, repairing, and maintaining plastic injection molds.
  • Strong blueprint and technical drawing interpretation skills.
  • Experience using precision measuring equipment such as micrometers, calipers, indicators, and gauges.
  • Solid understanding of mold fitting, assembly, troubleshooting, and repair techniques.
  • Ability to work independently while maintaining close attention to detail.
  • Strong mechanical aptitude and problem-solving skills.
Preferred Qualifications
  • Associate degree, Tool & Die apprenticeship, or equivalent trade certification.
  • Experience in a precision mold shop environment.
  • Knowledge of injection molding processes.
  • Experience with CAD/CAM software.
  • CNC machining or CNC programming experience.
  • Familiarity with:
    • Hot Runner Systems
    • Multi-Shot Molds
    • Conformal Cooling
    • Collapsible Core Tooling
  • Experience supporting mold sampling, validation, and production startup.
Preferred Technical Skills
  • Plastic Injection Mold Building
  • Mold Assembly
  • Mold Maintenance
  • Mold Repair
  • Precision Machining
  • Blueprint Reading
  • Manual Machining
  • CNC Machining (Preferred)
  • CAD/CAM (Preferred)
  • Injection Molding Processes
  • Precision Inspection & Measurement
  • Preventive Maintenance
  • Root Cause Troubleshooting
Physical Requirements
  • Ability to lift up to 50 lbs.
  • Ability to stand, bend, kneel, and work around manufacturing equipment for extended periods.
  • Excellent hand-eye coordination and manual dexterity for precision work.