If your job description is on it, you can get a J1 visa to train in that job. It also means that you are obliged to return to your home country for 2 years after finishing training . If you don't want to spend the 2 years at home, you have to obtain a waiver. Typically, this requires the consent of your home govermetns embassy to the US (a no objection statement) and the consent of the agency that provided the funding for your stay.
The skills list is published in the federal register, but you should be able to find it on the major immigration attorney websites.
