From my employer, I only have copy of my labor approval.
Labor Approval Certificate says - Occupation: Software Engineer 030062010. My I 140 is also approved in back in 2006.
I dont have copy of advertisement, I 140 approval and he has not given me any formal employment letter depicting my job responsibilities in detail.
Briefly, I only know my job code for labor certification and nothing beyond that point.
I am planning to invoke AC21.
Can I invoke AC21 with this limited information and Continue to work in similar Field(Software developement in general).
I dont have information at granular level - Job duties as identified in labor, and I 140, prevailing wage.