No. One important advantage of the EB-1 is that (unlike with the non-immigrant O-1 Visa) the applicant doesn't need to have found an employer willing to guarantee a job. In other words, the applicant can "self petition"-that is, apply on his or her own behalf.
This is a critical difference between the O-1 non-immigrant visa and the EB-1 immigrant option.
Does an EB-1 "Extraordinary Ability" Green Card applicant have to have an employer?
Free Books

Complete Guide To The EB-5 Green Card: Critical Knowledge For Investors Who Want To Make The Best Decisions For Themselves And Their Families
If you are seeking permanent residence status in the U.S., request a free copy of Complete Guide To The EB-5 Green Card to learn about the EB-5 visa program.
Learn More +
EB-5 Due Diligence Workbook: Ten Critical Steps to An Informed Decision
Vaughan de Kirby's book, EB-5 Due Diligence Workbook: Ten Critical Steps to An Informed Decision was written for EB-5 investors who are selecting a regional center.
Learn More +