The process took 2 weeks. I interviewed at Panasonic (Lake Forest, CA) in Oct 2018
Interview
first, it was a few written technical questions, then, interviewed with the principal engineer, and two more engineers, plus three managers, and finally, a hands-on skill test in the lab.
Interview questions [1]
Question 1
calculation of link budget,
calculation of power added efficiency,
impedance matching
90 deg hybrid