Drop the mention of pornhub. You have plenty of companies listed there and don't need it. You risk alienating people by having it. Unless you are applying to a porn company, in which case you can keep it.

Also, you list your title as back end developer, but javascript, jquery and web development are all front end related. PHP and Ruby are also web related, and so even though you often do back end work with them, having them along with javascript and jquery make you seem like a front end developer. So, change up your title or start mentioning more back end technologies you've worked with.

Remove your age, not relevant and people will disregard you as inexperienced, judging you for your age before they even talk to you. Good luck!