Principal Engineer - Packaging Equipment
Posted Sep 30, 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 packaging automation project you led that reduced labor or cost. How did you build the business case?
What they are checking: Whether they can tie engineering work to measurable savings, which is how corporate engineering earns funding.
Tell me about a time a third-party engineering partner or OEM missed a commitment. What did you do?
What they are checking: Whether they can hold outside partners accountable while keeping the project moving.
What emerging packaging technology do you think is worth piloting in food manufacturing right now, and why?
What they are checking: Whether they stay current and can separate useful innovation from hype for a high-volume CPG setting.
What would you do
How would you set a standard for packaging equipment across many plants when each site has its own habits and preferences?
What they are checking: Whether they can drive governance across a manufacturing platform while earning buy-in from plant teams.
A plant manager wants a project that you think won't deliver the promised return. How do you handle it?
What they are checking: Whether they will give honest feasibility analysis even when it disappoints an internal customer.
About the work
What goes into a complete Front End Loading package for a new packaging line, and where do you see them most often fall short?
What they are checking: Whether they know FEL deeply enough to prevent the scope gaps that blow up budgets later.
How do you evaluate competing OEM proposals for a case packer or palletizer when the prices and specs don't line up cleanly?
What they are checking: Whether they can compare total value, reliability and support rather than just the lowest bid.
Which regulations and codes shape how you design packaging equipment systems, especially around guarding and food safety?
What they are checking: Whether they keep safety and sanitary design built into equipment choices rather than added at the end.
How do you approach line integration and efficiency when you add a new machine to an existing packaging line?
What they are checking: Whether they think about the whole line's flow and bottlenecks, not just the one machine being bought.
How do you develop layouts and general arrangement drawings that plants can actually work with, including operator access and changeovers?
What they are checking: Whether they design for the people running and cleaning the equipment, not just for the drawing.
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Practice this out loudThe full job description
As published by Conagra Brands.