Packaging Engineer COOP
Posted Sep 28, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about a class or lab project where you tested a material or design. What did you learn?
What they are checking: Whether they can run tests and draw sound conclusions, which packaging work relies on.
Tell me about a time you worked with people from other disciplines on a project.
What they are checking: Whether they can collaborate across R&D, operations, and quality in an RD&I setting.
How do you document your work so someone else can pick it up after your co-op ends?
What they are checking: Whether they leave clean records, which matters in a six-month rotation.
What do you hope to get out of a packaging co-op at a food manufacturer?
What they are checking: Whether they have a clear interest in packaging engineering and food manufacturing.
What would you do
A private label customer wants cheaper packaging, but you're worried about damage in shipping. How would you approach it?
What they are checking: Whether they can balance cost, protection, and customer needs with data.
You get conflicting instructions from two people about a project. What do you do?
What they are checking: Whether they clarify priorities respectfully instead of guessing.
This role is hybrid with four days in Oak Brook. How do you stay productive on remote days?
What they are checking: Whether they can manage time and communication in a hybrid schedule.
About the work
What do you know about packaging for foods like pasta, sauces, syrups, or jams, and what makes each one tricky?
What they are checking: Whether they understand that different products need different materials, seals, and shelf-life protection.
How would you organize a packaging trial on a production line?
What they are checking: Whether they understand planning, coordination, and data collection for real plant trials.
What questions would you ask before changing a package's material for sustainability reasons?
What they are checking: Whether they think through food safety, shelf life, line performance, and cost before changing materials.
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Practice this out loudThe full job description
As published by Winland Foods.