Injection Molding Engineering Co-Op

Flex•Libertyville, IL
•$28 - $45•Onsite

About The Position

Flex is seeking a part-time Injection Molding Engineering Co-Op for its Libertyville, IL site. This role supports the Process & Automation Engineering Team by assisting with injection molding process development and validation for high-precision medical components. The co-op will collaborate with engineers and cross-functional teams to contribute to extraordinary product building and company growth.

Requirements

  • Currently enrolled student pursuing degree in Plastics Engineering, Polymer Engineering, Mechanical Engineering, or Materials Science major
  • Understanding of Injection Molding Process (injection molding fundamentals)
  • Basic process validation knowledge in highly regulated environments
  • Defect & root cause analysis experience
  • Understanding of mold tooling components and ability to read basic mechanical drawings
  • Strong documentation and communication skills
  • Ability to work 20 hours/week (in person) during the part-time co-op assignment
  • Currently enrolled in accredited university
  • 3.0 GPA min

Nice To Haves

  • Previous manufacturing floor internship experience

Responsibilities

  • Assist in injection mold trials and process window development
  • Support startup optimization and parameter validation
  • Perform short-shot and imbalance studies
  • Support defect analysis and root cause investigations
  • Assist with IQ/OQ/PQ documentation
  • Support tooling PM and mold performance assessments
  • Attend team meetings to support project work as needed

Benefits

  • Relocation: Not eligible
  • Is Sponsorship Available? No
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service