I applied online. The process took 4 weeks. I interviewed at Atos (London, England) in Jan 2016
Interview
Very good, had the phone interview 1 month after my application. The initial tests are not too bad, they are easier then most I have done. Then it takes a few weeks for them to get back to you but they do let you know straight away if you have passed or not.
Interview questions [1]
Question 1
Mainly competency questions which are standard STAR format. Also asked about Why ATOS