There is no single way to find jobs online, that being said, Forbes has this great guide:
BUT, let me get into some more details:
Your online presence should be about you, but don’t make yourself ridiculous. If you are using social media to land a job you need to maintain at least a semi-professional image. Sure you can share Bobby Shmurda vines, but you shouldn’t be using an email address on your C.V. like firstname.lastname@example.org. However please feel free to show your excellent use of grammar, experience and passions. Be reasonable.