I applied online. The process took 3 weeks. I interviewed at UScellular (Schaumburg, IL) in Oct 2017
Interview
Phone Screen from HR, then a Phone Interview with Engineers mostly general questions and what are the job responsibilities. Onsite interview with Director, and two lead Engineers where questions were S.T.A.R format, general questions but not very technical. Final interview with Senior engineer in the area of work - some technical questions but not too intense.
Interview questions [1]
Question 1
Mostly S.T.A.R format, just make sure you listen and respond directly with examples from your current / previous job