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Polymer Manufacturing Engineer

  • Location
    • Warren, Michigan
  • Schedule Full time
  • Posted


Hybrid: Position does not require an employee to be on-site full-time, but the general expectation is that the employee be onsite an average of three (3) days each week.

The Role:

The Polymer Manufacturing Engineer will be responsible for Design for Manufacturing (DFM) of major engineering projects involving part designs, injection molds, resin materials, cost control/value optimization, injection molding equipment, supplier management, plant and manufacturing processes in a centralized manufacturing engineering environment where a considerable amount of creativity and initiative is exercised. This role will work collaboratively with a diverse group of engineers, cross-functional engineers, or other engineering support personnel to drive quality into part designs and manufacturing processes throughout the entire program development cycle from part surface creation to mold validation. This role will also lead suppliers (e.g., Tier 1 Part Suppliers, Tool Vendors, Hot Runner Suppliers, Material Resin Suppliers, and Injection Molding Filling Simulation Suppliers) in the development of thermoplastic parts and molds that produce optimal assemblies in the support of the Production Part Approval Process (PPAP).

What You'll Do (Responsibilities):

  • Lead suppliers in the development of optimized molding process conditions that yield high quality parts at reduced cycle times during mold validations

  • Create tool concept sheets for critical parts / mold tooling as part of product development process standardized work for plastic parts

  • Seamlessly integrate tool concept sheets into a business process that facilitates allowable cost estimating

  • Closed loop output on tool tryout validation outcomes as part of Manufacturing Engineering Polymer standard work to validate tooling

  • Continuously improve Tier I supplier and GM internal mold tool and manufacturing processes, integrating kaizen opportunities back to Global General Motors standards and Statement of Requirements (SOR) Appendix E8 through Process Review Meetings

  • Support Strategic Tooling Initiative (STI) collaboration with Tier I’s and STI sources to create highest value solutions

  • Establish and sustain transparent workflow process between tool concept sheet input and allowable cost output

  • Develop Manufacturing Engineering best practices for injection molded parts and train other engineers to those standards

  • Participate with Product Engineering development organizations to implement effective best practices

  • Experienced with Class -A- surface appearance requirements in the automotive industry associated with as-molded, painted, chromed, and/or metalized parts

  • Formulate solutions that optimize part design, tooling, and processing variables to enable low cost, high quality strategies

  • Collaborate globally in the development of plastic part and tool designs that enable low cost, high quality parts

  • Demonstrated ability to provide plastic part and tool design solutions using mold filling analysis software that leads to quality parts with reduced mold debug time

Additional Description

Your Skills and Abilities (Required Qualifications):

  • Bachelor's degree in Plastics or Mechanical Engineering

  • Plastic processing and/or tooling experience

  • Extremely high level of analytical ability where problems are unusual and difficult

  • High degree of interpersonal oral and written communication skills - ability to work across cultures and languages to achieve results

  • Working knowledge in latest version of Unigraphics NX or equivalent

  • Working knowledge of injection mold filling analysis such as Autodesk-Moldflow

What Can Give You a Competitive Edge (Preferred Qualifications):

  • 3+ years of plastic processing and/or tooling experience

  • MS in Plastics or Mechanical Engineering and/or MBA

  • Autodesk Moldflow Associate Certification

  • Autodesk Moldflow Professional Certification

  • Design for Six Sigma Green Belt Certification

  • Design for Six Sigma Black Belt Certification

  • Scientific molding and process control background such as RJG or equivalent

  • Statistical techniques such as Six Sigma

  • Formal problem-solving techniques such as Shainin and/or Design of Experiment (DOE)

  • Conversational and technical language skills – Spanish, Portuguese, German, Korean, and or Chinese


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General Motors is committed to being a workplace that is not only free of discrimination, but one that genuinely fosters inclusion and belonging. We strongly believe that workforce diversity creates an environment in which our employees can thrive and develop better products for our customers.   We understand and embrace the variety through which people gain experiences whether through professional, personal, educational, or volunteer opportunities. GM is proud to be an equal opportunity employer.

We encourage interested candidates to review the key responsibilities and qualifications and apply for any positions that match your skills and capabilities.

Equal Employment Opportunity Statements

The policy of General Motors is to extend opportunities to qualified applicants and employees on an equal basis regardless of an individual's age, race, color, sex, religion, national origin, disability, sexual orientation, gender identity/expression or veteran status. Additionally, General Motors is committed to being an Equal Employment Opportunity (EEO) Employer and offers opportunities to all job seekers including individuals with disabilities. If you need a reasonable accommodation to assist with your job search or application for employment, email us at or call us at 800-865-7580. In your email, please include a description of the specific accommodation you are requesting as well as the job title and requisition number of the position for which you are applying.

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