I applied online. The process took 8 months. I interviewed at Regeneron (New York, NY) in Dec 2020
Interview
Held over Zoom or equivalent, all-day with multiple people, preceded by package explaining benefits and other policies. Some HR folks, others more senior and from different locations of the company. Everyone was professional and polite and went smoothly.
Interview questions [1]
Question 1
They asked about working with teams, but not salary.