LinkedIn headlines should be 220 characters max — which could potentially be 10-20 words, depending on how long the words you use are.
Don’t worry if your first draft isn’t your last draft. Keep editing your headline until all extra words are gone. Get down to the basics.
Don’t use “seeking a job” language in your headline. It wastes space and doesn’t tell the potential employer much about you other than you really want a job.
Make sure they are relevant to your job and the role you want to seek.