Senior Scientist I, Analytical Development, Mass Spectrometry tLNP CMC
Posted Sep 1, 2026 · We last checked this listing on Sep 22, 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
You'd provide analytical support to formulation, process development and manufacturing. How do you turn an analytical result into something a process engineer can act on?
What they are checking: Translation to the internal customer
You'd advance characterization by developing innovative techniques. Tell me about a method you developed that did not exist before you built it.
What they are checking: Innovation with evidence
What would you do
You'd document in an electronic laboratory notebook in compliance with standard procedures. Why does documentation matter as much as the result here?
What they are checking: Documentation in a regulated development setting
The posting asks for a doctorate in analytical chemistry, biochemistry or pharmaceutical sciences with zero to three years of industry experience, at North Chicago. Where do you sit, and what would you want to know about the instrument suite?
What they are checking: The stated qualifications plus diligence on the laboratory
About the work
This role is the mass spectrometry expert in analytical development for targeted lipid nanoparticle therapeutics. What mass spectrometry work have you done on these molecules?
What they are checking: The specific modality, which is new enough that experience varies widely
The posting names evaluating critical quality attributes of messenger ribonucleic acid, including capping efficiency and polyadenylated tail distribution. Walk me through measuring one of those.
What they are checking: The named attributes, tested concretely
You'd operate, maintain and troubleshoot high-resolution and time-of-flight mass spectrometers and liquid chromatography systems. What fails most often, and how do you tell instrument from sample?
What they are checking: Hands-on instrument reality
The posting lists several data acquisition and analysis packages. Which have you used, and for what kind of analysis?
What they are checking: The named software, checked honestly
You'd author and review regulatory submission documents including investigational new drug applications and comparability studies. What does a regulator want from an analytical section?
What they are checking: Regulatory writing, a named duty
A lipid nanoparticle is a complex mixture. What makes characterizing it harder than a protein?
What they are checking: Whether the modality knowledge is real
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Practice this out loudThe full job description
As published by AbbVie.