I applied online. The process took 2 months. I interviewed at cPanel (Houston, TX)
Interview
Series of proctored cognitive assessments covering the most random material (no coding involved). You're then given a few timed coding problems to complete on HackerRank. You're then given two interviews, along with one more cognitive assessment. Unless you enjoy coding primarily in Perl and being underpaid, save yourself some time and apply elsewhere.
Interview questions [1]
Question 1
Various questions on programming fundamentals. It's not worth mentioning a question specifically, because these will likely change.