If you have a copy of your Diploma(s), valid passport, the whole fees amount for processing and you follow up with all mails and correspondance, the due process could take six(6) the sonnest, up to 12 months the latest. If you experience any delays that would be due in the filling in with the paper works that could take up to two (2) years, if you mess them up.
They don't seek, or look for employment for you. The main program issues an immigrant visa through the general consulate, based on the diploma(s) and the level of education that you acquired. But if you go through a recruiting agency, they find you an employer based on your specialty, your qualification, training and work experience.
I hope that'll help.