Principal Research Scientist I, Process Chemistry
Posted Sep 25, 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 complex synthetic problem you solved. What options did you consider?
What they are checking: Whether they combine synthetic organic chemistry depth with creative problem solving.
Describe a time your work created intellectual property. How did you recognize it was patentable?
What they are checking: Whether they understand how process innovation becomes protected value for the company.
What would you do
A tox batch is needed in eight weeks and your enzyme route is not ready. What do you do?
What they are checking: Whether they can balance a better long-term route with the urgent need to supply the program.
How do you handle enzyme supply and residual protein concerns when moving a biocatalytic step toward GMP?
What they are checking: Whether they anticipate regulatory and supply issues specific to using enzymes in API manufacturing.
About the work
Walk me through a biocatalytic process you developed that was scaled up. What made it scalable?
What they are checking: Whether they have taken biocatalysis beyond the lab to processes that work at manufacturing scale.
How do you plan a directed evolution campaign for an enzyme that has the right activity but poor stability under process conditions?
What they are checking: Whether they can design an evolution strategy with smart screening and clear goals.
How have you used AI or machine learning tools to speed up enzyme discovery or optimization?
What they are checking: Whether they can practically integrate computational tools rather than just mention them.
When would you choose a biocatalytic step over a traditional chemical route, and when would you not?
What they are checking: Whether they weigh cost, selectivity, timeline and supply honestly instead of defaulting to their specialty.
How would you apply biocatalysis to peptides or antibody drug conjugates?
What they are checking: Whether they can extend enzyme methods to the newer modalities named in the posting.
How do you set up high-throughput experimentation so the data is actually useful for decisions?
What they are checking: Whether they design screens with good controls and data capture, not just volume.
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As published by AbbVie.