I will critique your programming/tech job advert for free, just send it to the email address in my profile.
If time permits I will give you suggestions for possible improvement, otherwise I will just give you my gut reaction as a programmer.
About me: I've been programming professionally since 1991, and a tech hiring manager since 2004. I've interviewed hundreds of programmers in the UK and India, and most of the people I've hired have worked directly with me. This is how I learned about tech hiring. Also http://cvmountain.com/about
Full disclosure: I sell "tech hiring/interviewing services" professionally