I applied online. The process took 1 day. I interviewed at GMS (Chicago, IL) in Oct 2016
Interview
phone call interview with one person technical round they introduced about company and they mainly work on bgp and eigrp. Then u should have ability to fix issues : i mean troubleshooting , find out the problem. they have 2 teams , if your there you will be one, wireshark,solarwinds etc. they need us citizen for this job , they don't hire other people