Merck Sr Scientist interview questions

Approached by an employee to apply to the position, talked with the HR and then a senior scientist - largely technical. Then I was invited to an on site interview, I gave a presentation and had several one-on-ones with director-level scientists. Also had a lab tour and lunch. It seemed they had a relatively large candidate pool so expect some rigor in selection. There were a lot of behavioral questions about lab experiences which I found harder to answer than some technical questions.