Job Description

Hiring for Molding Manufacturing Engineer in Libertyville, IL

Job Title: Molding Manufacturing Engineer

Location: Libertyville, IL

Job Duration : Long term contract

Position Summary

The Molding Manufacturing Engineer will support all injection molding operations, focusing on reducing scrap and setup times, optimizing cycle times, and driving continuous improvement. This role also leads validations for materials, molds, and presses while ensuring robust, efficient, and compliant manufacturing processes.

Key Responsibilities

• Establish robust process windows using Scientific Molding and DOE methodologies.
• Troubleshoot molding and manufacturing processes to reduce defects and improve yield.
• Optimize workflows, equipment layout, and manufacturing efficiency.
• Conduct process validation, capability analysis, root cause analysis, and optimization studies.
• Create and maintain process documentation (work instructions, setup instructions, URS, procedures).
• Support design, development, and improvement of molding equipment and manufacturing processes.
• Define equipment specifications and maintenance requirements; investigate equipment failures.
• Collaborate with cross-functional teams on problem-solving, product design, and continuous improvement.
• Assist with PFMEA, control plans, and risk assessments for new and existing products.
• Communicate with customers regarding product specifications and design changes.

Qualifications

• 5+ years of hands-on injection molding experience required.
• Strong knowledge of molding presses (hydraulic & electric), molds, hot runners, dryers, blenders, and auxiliary equipment.
• Experience with molding-grade plastics (PP, PC, ABS, Nylon, etc.).
• Scientific Molding / RJG Master Molder certification preferred.
• Experience with EOAT, six-axis robots, and programming preferred.
• Familiarity with cGMP manufacturing environments is a plus.
• Strong analytical skills with experience applying statistical methods.

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