Is it worth it to do Phd in us to get a better paying job?
You won’t get a better paying job in the end. Good programmers and managers with 5 years of experience earn the same as a fresh PhD. The jobs are different, though: with a PhD you have the option of going to work for Microsoft / Intel / IBM / Google / etc in their research divisions rather than as a programmer. In terms of getting funding, just apply to schools. You will not be responsible for your tuition and you will receive a stipend. They will automatically consider you for fellowships, research assistantships, and teaching assistantships, which is where your money comes from. You have no responsibilities with a fellowship; as a research assistant you will get paid for working with a particular professor; and as a teaching assistant you will run discussion sections and give homework help. You can also apply for EXTERNAL fellowships (meaning fellowships given by organizations other than the school). You will not be eligible for fellowships funded by the US government but big compani