2 out of 2 members found this post helpful.
Re: Can a foreigner apply for a full-time RA position?
Some of these positions will sponsor a visa, some won't. It depends on the circumstances of the job - importantly where the funding for the position is coming from and whether that source can support a visa. Postings may state clearly whether they can or cannot sponsor a visa; if they don't, I think you're within your rights to reach out to the contact email and clarify whether they can sponsor a visa before you send in an application.
See the link below for a centralized page that lists a number of great positions.
Research Assistant Positions not at the NBER