Open question to all the US immigration-help folks online.?

Am an international student in the US in one of the prestigious universities in the US.Am in my 4th year in my bachelor program in chemical engineering but i have a very big problem that i would like all the immgration experts online to help me out.Am originally from a small island far from the US and i must say probably am the only person from my tiny homeland island in an university in the US and doing a bachelor course aiming to do my masters later on.Academically am very good and so by Gods grace ihave gotte schorlarships tru out.i will graduate this semester and am not willing to go back to my island BECAUSE i will not get any factory or company to employ me.The island has virtually NO existing factories for me to return home and work.And so as a result i will like to work in the US but have NO SS,please how can i get a working SS after graduation to work as a chemical Eng.?Hb visa to is very limiting.So how do i get an SS after graduating?No H1B visa to limit my scope of findnjob