I applied online. The process took 2 months. I interviewed at Illumina in Apr 2018
Interview
Applied online, received phone interview about a month later. Took another month to get interview scheduled. Some questions about previous experience, a lot of hypothetical questions that served as analogues for how you think and how you mesh with their culture. Overall a really pleasant process and the hiring manager was very nice, but they didn't move forward mostly due to my lack of experience.
I applied through an employee referral. I interviewed at Illumina in Sep 2020
Interview
Started with an intro call with the manager and one other person on the team. I was given a scientific paper and a week to prepare a presentation. Prompts were provided. After that I met with 5 other people on the team and was given an offer for a 6 month contract with intention of getting FTE status when the contract ends.
Interview questions [1]
Question 1
Why do I want to work at Illumina? What do I plan to do in my first 90 days if hired?