When I interviewed the company was still a start up before being acquired by biogen, not a formal interview process at the time. Interview was fairly simple and stress free. Interview was a total of 2 hours. Met with all employees in the group, hiring manager and VP. I was hired that day.

I was contacted by a recruiter in early December then promptly had two interviews; one call with the recruiter and another via Microsoft Teams with two different hiring managers. Before the holidays, I was invited to interview with the entire team at Biogen virtually in early January. This interview was essentially a replacement for a regular on-site interview. The interview consisted of a 45min seminar and then a sequence of ~6 face-to-face interviews with two other people at Biogen. They asked questions pertaining to my research, skills, and work experience. They mostly wanted to know how I operate/function in the lab and how I got along with my former and current lab mates -- basically checking if I could fit into their culture at Biogen. The last few interviews sessions consisted of a current scientist at Biogen talking about their independent research and another giving a virtual lab tour. After everything was said and done, the senior recruiter reached out and told me that they would keep me posted about my application status; it was overwhelmingly positive. After a week, they reached out again about references. Then a week after that, an offer was made. The entire process took about ~2 months.