Your problem is not only just change job title

Generally, you cannot use your current employer job experience (5 years) to apply LC, because DOL think it is unfair for people who want to apply the position from outside of your company.
However, there is a workaround, see those information.

Good luck!

1)
學曆及工作經驗與EB-2

2)
申請人在同一家公司可以申請2份PERM勞工卡嗎？

3)
PERM：如何利用現雇主的工作經驗滿足第二優先

所有跟帖： 

• Thanks for your reply. But my question is that... -shenyang- ♀ (316 bytes) () 12/17/2006 postreply 20:02:00

• I don't see level difference between those two -也想移民美國- ♀ (147 bytes) () 12/17/2006 postreply 20:13:38

• 回複：I think this can be seen from the job deion, not only from -shenyang- ♀ (0 bytes) () 12/18/2006 postreply 05:57:01

• 回複：I think this can be seen from the job deion, -Shenyang- ♀ (254 bytes) () 12/18/2006 postreply 06:08:48

• senior or architecture is better I think -也想移民美國- ♀ (771 bytes) () 12/18/2006 postreply 11:54:29

• 回複：If no senior or architecture words in the job title, -shenyang- ♀ (300 bytes) () 12/18/2006 postreply 12:41:12

• company cooperation is important in your case -也想移民美國- ♀ (0 bytes) () 12/18/2006 postreply 17:52:09