imli,
I do recall that my lawyer told me that I need to mention my proposed employment. I forget what ETA form it was, but I was surprised that this was required although technically this is a sel-petition that gernerally requires no current or active employment. What I did is that I got a letter for a proposed post doc discussing, being the proposed employment...
Right now I am employed full-time, but not as a post-doc. This full time employment of mine is not what I wrote back then in that ETA form when I submitted, through a lawyer, my EB2-NIW petition.
Maybe other forum members can discuss and share their experiences and give you more helpful comments.