Hello,
I can confirm we got multiple clients across the border with a job that was not exactly what was mentionned. The honest truth is that you need to show that you are qualified to get the job.
Although a
TN can be easy to obtain when you match all the requirements, you should let qualified immigration lawyers deal with cases such as yours. Most of the time, our clients would never have been granted a TN with the resume and papers they had. You need a resume that shows that you are a X expert about to get an X job.
If you need any help with this, PM me.