The board
- Hours
- Full time
- Where
- USA, IL, Libertyville
- Apply by
- End Date: November 18, 2026
- Posted
- Sep 18
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world.
A career at Flex offers the opportunity to make a difference and invest in your growth in a respectful, inclusive, and collaborative environment. If you are excited about a role but don't meet every bullet point, we encourage you to apply and join us to create the extraordinary.
Job Summary
To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add a Plastic Molding Engineering Co-Op located in our Libertyville, IL site.
Reporting to Process & Automation Engineering Team, the student will support injection molding process development and validation activities for high-precision medical components, while collaborating and working alongside Engineers and cross-function…
What you'd do
- 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
- Currently enrolled student pursuing MS/BS 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
- Starts
- 2026-09-18