Its a contract based so basically they bid the jobs for contractor rather than open platform. But you can also apply online.
First round they ask the basic question
networking
installation
Easy. Went to the walk in interview day. So many people only some selected. Talk about your experience and your skill and you should be fine. The iv process was quick and not even a month
I applied online. The process took 2 months. I interviewed at DXC Technology (Madrid) in Mar 2017
Interview
I had 2 interviews with the company before hire. One technical and one with HR, both on skype. Technical was mostly about experience in the field and HR is more like a personality test. They were professional.