Engagement of OPT candidates provides firms with the right to hire highly skilled foreign graduates without necessarily sponsoring them. Learn the fundamentals: You have 12 months (36 with STEM) to learn the key and recruiting is easy, like any other employee. The services such as Interstride and GoinGlobal and university career centers will assist you in reaching your prospective candidates searchable through OPT. Make it clear that you will or will not resume H-1B sponsorship in the future- this will instill confidence and help in recruiting higher profile employees.