How do I write an effective job posting to attract Top Talent?

A good summary will ensure that your job posting will appeal to Top Talent.
The summary represents the first four lines of a posting. If you don’t get the
first four lines right, the fickle and easily distracted passive job seeker will
not read any further. In other words, the summary must be so powerful that it
takes the reader’s finger off of the mouse and compels them to invest the time
required to finish reading the posting.