How to apply for Us Visa in this Case?

Myself Vijay, from India. I am Currently pursuing my masters in Germany, I would like to know for which Visa should i apply for doing jobs in USA or for doing Internship? I want to know how much fee do i need to pay for these visas? If i pay the visa fee will i get back that money when they did’t approved my visa.

In order to apply for a job in USA do i need to have any experience or else can i apply directly to the job visa? it would be better if i approach a job consultancies if yes let you help me to find the way out?

I’m eagerly waiting for the reply, if you have any links please send me emails on

Thanks in Advance