Why:
In the regular Linkedin, a job-seeker needs to search for positions that he/she wants.
So, how about allow Linkedin to identify and automatically apply for position based on the preferences of the job-seeker?
How:
Providing an online website or API in which job-seekers can list their profiles and preferences for jobs/opportunities in a manner that they get applied automatically.
What:
A website/API that implements the inverted Linkedin (or similar job portal), where applications are automatic sent to employers based on job seekers' profile and preferences.