I have no clue if you want to work in the market as a field sales, if you want to work as an implementor or as an admin for a customer. I have no clue what the market is like on this part.
AS for certification, yes, you can obtain one as an HP Professional. I suggest you contact HP Education in your region for advice and information how this can be obtained. Certification after 6 months experience IS a bit likely however. Might work, but then I'M not sure.