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Postdoctoral Appointee - Bioimaging
Posted May 4, 2026 · We last checked this listing on Oct 6, 2026
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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 an instrument or setup you built. What would you do differently now?
What they are checking: Whether they have real hands-on instrumentation experience and learn from it.
Tell me about working on a team of physicists, biologists and engineers. How did you handle different ways of thinking?
What they are checking: Whether they can collaborate across disciplines with different goals and vocabularies.
What scientific question would you most want to answer with this instrument?
What they are checking: Whether they can drive independent research rather than only building tools.
What would you do
Your 3D reconstruction shows artifacts that a biologist thinks are real features. How do you sort it out?
What they are checking: Whether they can separate reconstruction artifacts from real signal and explain it to non-experts.
A beamline user needs help with your instrument during your own experiment time. What do you do?
What they are checking: How they balance supporting users with their own research priorities.
About the work
Walk me through how X-ray fluorescence tomography works and what limits its resolution and sensitivity.
What they are checking: Whether they understand the technique at beamlines 2-ID-E and 2-ID-D well enough to improve it.
What are the special challenges of imaging soil aggregates compared to cells or materials samples?
What they are checking: Whether they can think about sample prep, heterogeneity and radiation damage for this kind of sample.
How would you design an apparatus that combines several imaging modes while keeping precise control during data collection?
What they are checking: Whether they can design multimodal instruments with alignment, motion control and synchronization in mind.
How do you register and fuse datasets from different techniques that see the same sample differently?
What they are checking: Whether they know practical methods for multimodal data analysis, which they would lead.
How would you build a data processing pipeline that works for both biological and energy-conversion samples?
What they are checking: Whether they can design flexible, reusable analysis tools as the posting asks.
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Practice this out loudThe full job description
As published by Argonne National Laboratory.