About Plastic Molded Concepts

Plastic Molded Concepts (PMC) is a leader in molding highly engineered thermoplastics. We help our customers take their new plastic product concepts through design and into production — ensuring each part meets the highest standards for performance and reliability.

Unlike most molding companies, PMC treats injection molding as an engineered science, not a “black art.” Our process engineers combine material science, data-driven analysis, and advanced process control to develop consistent, high-quality molding processes that protect and maximize resin performance.

Position Summary

PMC is seeking an Injection Molding Process Engineer with a deep understanding of resin chemistry, mold design, and process optimization, including using scientific, closed-loop process controls. This role focuses on developing, validating, and analyzing injection molding processes that maintain the full physical properties of advanced polymer resins.

This is not a setup or machine operation role — it’s an engineering position for individuals who understand the science behind the molding process and how it impacts material performance.

Key Responsibilities

Develop and optimize injection molding processes for advanced engineering resins such as PEEK, PPS, Polycarbonate, and Nylon.
Collaborate with customers and internal design teams to ensure part and mold designs are manufacturable.
Translate resin supplier data sheets into scientifically validated process parameters.
Perform mold flow analysis and develop process settings that ensure dimensional stability and material integrity.
Use DOE (Design of Experiments) and statistical analysis to validate and document molding processes.
Conduct forensic root-cause analysis of molding or material issues using data and analytical tools.
Support tooling design reviews to ensure molds align with processing requirements.
Create and maintain detailed documentation for process validation and continuous improvement.

The Forensic Process Approach

This role uses a forensic, data-driven engineering approach to understand how resin chemistry, mold design, and processing parameters interact. The goal is to create optimized molding processes that preserve the resin’s full mechanical and thermal properties, ensuring the final product meets its intended performance and life expectancy.

This is ideal for engineers who enjoy problem-solving, experimentation, and process development — not just machine setup.

Qualifications

Bachelor’s degree in Plastics Engineering, Polymer Science, Mechanical Engineering, or a related field.
Minimum 5 years of experience in injection molding process development or engineering.
Strong understanding of polymer behavior, resin chemistry, and scientific molding principles.
Hands-on experience in DOE (Design of Experiments), process validation, and troubleshooting.
Proficiency in interpreting resin data sheets and converting material properties into process parameters.
Excellent analytical, documentation, and communication skills.

Benefits

Competitive salary based on experience
Health, dental, and vision insurance
401(k) plan
Paid vacation and holidays
Opportunities for professional growth and advanced training

Why Join PMC

At Plastic Molded Concepts, you’ll work with a team of professionals who see injection molding as a scientific discipline. You’ll be part of an organization that values innovation, precision, and a deep respect for material science.

Join us and help redefine what’s possible in the world of high-performance plastic injection molding.

Job Type: Full-time

Benefits:

401(k)
Dental insurance
Health insurance
Life insurance
Paid time off
Vision insurance

Work Location: In person

Plastic Molded Concepts, Inc.

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Injection Molding Process Engineer – Advanced Resin & Forensic Process Development