Guest posting in Job related Blogs and Forums

We have a Job website in India and our target audience is India. We need to have more than 200 job related blogs and 100 + forums which have good PRs and are also Job oriented. Ideally, the blog and the forum main domain to have job (i.e. related words in the root domain URL). Once we have finalised them and the credentials are ready - to do one guest blog post (not the comments as they do not help in SEO) and 2-3 forum posting in the final set of blogs and forums. For blog posting and the forum postings, the content to be used should be unique for all the postings. Only to apply white hat techniques in the postings as that would be used for website promotion. Could be a continued job for the right candidate. Prior experience of working for a Job website is an added advantage.