I applied online. The process took 2 months. I interviewed at Illumina in Mar 2015
Interview
First selected for a phone screen.
during the phone screen was asked some atypical questions. the onsite interview consisted of group challenges and uncommon activities that were quite fun. They replied within a week after the on-site interview letting me know that I had been rejected
Interview questions [1]
Question 1
in the phone screening: "if the time is 3:15 and you are looking at an analog clock, what hour is the big hand from the small hand?"
I applied through an employee referral. The process took 3 weeks. I interviewed at Illumina (San Diego, CA) in Jan 2020
Interview
Went through 4 rounds of interviews, made it to last stage and lost out to an internal candidate. Had to travel to their headquarters site for the final interview, even though it was a remote job. They paid for everything.