Pros
They are good for PTO. Salary is OK. You will be exposed to a lot of different technology, typically via sink or swim. If you are a hard worker and self-disciplined, you can learn a lot.
Cons
Operations and Service Delivery Management is inept and has many blind spots. IT Security is shameful for many US clients. Atos will only support the bare minimum of what a client pays for, but they don't staff to support the technology properly. The company is too focused on selling deals and data center hosting. There are several contracts where Atos NA supports an entire client environment, but there is insufficient Security. For example, many clients never even receive a vulnerability scan of their entire environment. Only the data center gets scanned. Some client environments permit uncontrolled access to the internet, users have admin rights on their machines, and antivirus is not well maintained. This leads to re-occurring outbreaks, and IT Support personnel get stuck with the work. Training for employees is just the bare minimum of what a client demands Atos employees be trained on. Managers are so over-whelmed and there is never time or money for employees to receive proper training.