I applied online. The process took 2 weeks. I interviewed at Lumentum Operations (San Jose, CA) in Jan 2022
Interview
Give a talk for your research and 5 people do 30 mins Q&A most based on what you talked about.
Some minor question about testing skill and software capability like python, matlab.
Interview questions [1]
Question 1
Just question about Ph.D work and what software you typically use.