US work visas requires the prospective employer to first file a petition with U.S. Citizenship and Immigration Services (USCIS). Form I-765 is often a two-page document, which is available at the USCIS.Some work visas require U.S. employers to first receive an approved foreign labor certification from the U.S. Department of Labor before hiring foreign workers. Make sure of the following. A) That the position mentioned in the LC was 'Product Engineer'. Please type or print legibly. We only accept applications for positions which we are currently recruiting. Find the U.S. Embassy or Consulate near you.