Embryologist II- Reproductive Endo Infertility Full Time Days
Posted Oct 5, 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 a mistake you made or nearly made in the lab. What did you change afterward?
What they are checking: Whether they are honest about errors and fix systems, which matters in work where mistakes are irreversible.
What would you do
Your fertilization rates drop over two weeks for no clear reason. How do you investigate?
What they are checking: Whether they think systematically about media, incubators, air quality, and technique as a source of quality problems.
A physician asks you to transfer an embryo you graded as poor quality. How do you handle that conversation?
What they are checking: Whether they can share their honest assessment with the clinical team while respecting the physician's decision.
About the work
Walk me through how you identify and grade oocytes from follicular fluid right after retrieval.
What they are checking: Whether they can work quickly and accurately with fluid where timing and temperature affect egg viability.
How do you decide whether a case should get conventional insemination or ICSI?
What they are checking: Whether they understand sperm and oocyte factors behind fertilization method choice, not just how to perform ICSI.
Describe your ICSI technique and what you watch for during injection that tells you something is going wrong.
What they are checking: Whether they have true hands-on micromanipulation skill and can recognize membrane or oocyte damage.
How many trophectoderm biopsies have you done, and how do you minimize damage to the embryo?
What they are checking: Whether their biopsy experience is real and careful enough for PGT cases at an advanced level.
Tell me exactly how your lab prevents a mix-up of gametes or embryos between patients.
What they are checking: Whether they treat witnessing and labeling as sacred, since a mix-up is the worst error in an IVF lab.
How do you monitor media and culture conditions to make sure they support embryo growth?
What they are checking: Whether they understand QC for pH, temperature, osmolality, and gas, which the posting calls out directly.
Walk me through vitrification and warming of embryos, and how you track embryos in cryostorage.
What they are checking: Whether they handle cryopreservation with precision and keep inventory records that are fully reliable.
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As published by Northwestern Medicine.