From research experiences across the world to internships at its headquarters, the U.S. National Science Foundation offers undergraduates, graduate students, and recent Ph.D.s paid opportunities to expand their skills and knowledge in science and engineering.
https://new.nsf.gov/funding/undergraduates
https://new.nsf.gov/funding/graduate-students
https://new.nsf.gov/funding/graduate-students#nsf-graduate-research-fellowship-program-grfp-3e5
