A huge number of jobs that are filled are never advertised to the public, or if they are, they’re filled by people who have a connection to the employer.
Make sure your LinkedIn profile has a targeted headline. Not only should the headline clearly state your career focus, it’s also the most important place to add a keyword or two, because this influences how you appear in search results
Your LinkedIn profile must include keywords for specific skills that match your desired job.
Your LinkedIn profile must be consistent with how you portray yourself elsewhere. Not only should your official résumé match the experience you list on LinkedIn, but it also should be consistent with Twitter and public Facebook information.
Your LinkedIn profile should leave no room for doubt about the kind of job you’re looking for and why you’re the best person for that position.