Pros
1. helps to apply for green card and supports during whole process. 2. opportunity to choose between different locations and projects.
Cons
experience relevant to Epam North America only. most of the people working here are not from US and are on L1 visa , meaning that they are locked to one specific employer => Epam. Epam management is well aware of that and understands that there is no way for the people willing to get Green Card to change place of work, without starting whole process from scratch. (meaning to go back home and reapply for L1/H1B with another employer) So that management never reviews or increases salary till you get a green card (bare in mind that it usually takes 3 years to get a green card), after that they start to treat you as a human being, especially if you brought an offer from another company. However thats happening because Epam is an out-staffing company which is interested in selling as many people as possible and NOT interested in growing competency or investing in its employees. As said many times before most of the people leave because they are treated very badly and don't see any future / growth possibilities other than receiving a Green Card.