[advisedwang]

If the job is substantially similar, you may be able to use supplement J portability.

[chussad]

This is a self filed petition and I believe that i485 j is not required to be filed.

[proberts]

That's correct, if this is a self-petition, then Form I-485J is not required. Is your self petition an EB1A or NIW? My response to your questions depends in part on your answer to this question.