It’s quite difficult for a student who does not have the citizenship of the US to get a job there. Even if you are a postgraduate, you will need to find a company which can afford the expenses of your work visa. The disadvantage of it, is that you may find yourself in a situation where you can’t quit the company even when you are getting paid poorly.
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Also, to land a job in the US being a foreigner there means convincing your employers why they should choose you over a US citizen, which could be a difficult task. Many companies hire foreign employees and pay for their working visas too but the working conditions are often unsuitable for most of these employees.
One more thing to keep in mind is in what discipline you have acquired your Master’s degree. The vacancies for the jobs of an engineer and those which demand very highly skilled employees. Other don’t find much scope under the affordable expenses there. You will have to have a rented place to put up as you won’t be allowed to purchase property in the country. Also, if you decide to study and work, having a student visa, you won’t be allowed to work out of the premises of your university.
In order to land a suitable job for yourself in the US, you need to start looking for the job very early as landing a good and suitable job is going to take a lot of time. You should research well about the documentation requirements that you might have to fulfill in the foreign land, and the best would be take the help of your school resources.
All the best!