I applied through a recruiter. The process took 4 weeks. I interviewed at Instrumentation Laboratory (Bedford, MA) in Aug 2021
Interview
HR screen (about 30 min) - Phone call
1 hour with the hiring manager - Over Zoom
4 hour interview with 8 people (30 min each) - On zoom over two days
The HR guy was very aggressive in getting the interview done. But radio silence after. They claim to due a lot of hiring but I never heard back from them.