Generally the post-employment law does not restrict which employer you work for after leaving the government.  It may, however, restrict the kinds of things that you do for your new employer.  The restrictions depend on what you worked on or were responsible for when you were with the government.  Your ethics official can provide specific guidance on these restrictions.  You should contact him or her to be sure you perform the duties for your new employer in a lawful manner.  

U.S. Office of Government Ethics’ Post-Employment Summary states:    

None of the [post-employment] provisions bar any individual, regardless of rank or position, from accepting employment with any private or 
public employer after Government service. Section 207 only prohibits individuals from engaging in certain activities on behalf of persons or entities 
other than the United States, whether or not done for compensation.