Roles › Principal Research Scientist
North Chicago, IL
Principal Research Scientist jobs in North Chicago, IL
4 open roles from 1 employer. Checked Oct 6, 2026.
What these openings look like
All 4 are at AbbVie. None of these postings publish a pay range. Every posting is full time. The most recent went up on Sep 25, 2026.
Every listing links to the employer's own application. Nothing is posted here on their behalf, and nothing is reposted from anywhere else.
Open roles
What they ask principal research scientist candidates here
Drawn from the 4 open postings on this page. The ones that come up across several employers are near the top.
Tell me about your experience with parenteral manufacturing processes.
What they are checking: Whether sterile manufacturing is genuinely their field, since it does not transfer from oral solid dose.
Walk me through troubleshooting a filling machine that is losing yield.
What they are checking: The posting names filling machines as the technical specialism, and this is the real work.
How do you approach selecting process equipment for a new or expanding line?
What they are checking: Equipment selection, which the posting names and which commits a plant for a decade.
Tell me about a process problem in manufacturing that you were called in to solve.
What they are checking: Whether they are the person who gets called, which is what principal means here.
How do you work with an external partner who does things differently from your own plants?
What they are checking: The posting names external partners, and this is where technology transfer fails.
How do you give technical guidance to a manufacturing team that reports to someone else?
What they are checking: Influence without authority, which is most of a technical expert role.
How do you decide a process is ready to move from development into manufacturing?
What they are checking: Judgment about readiness, which is where launches slip or fail.
Tell me about a time your technical recommendation was overruled.
What they are checking: Whether they can disagree and then support the decision.
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