Market yourself very aggressively on LinkedIn. And this Reaching out to the HR or job posters would really help. If you are into coding make sure you have done some programming recently and you are up to date. Also make a small project and post it on GitHub publicly as well as add it resume. Look for small and mid sized companies. It takes time to get response but Don’t loose hope.
Oh..maybe due to some privacy settings which I made long ago..I made some changes to settings now. so maybe you would be able to start a conversation.
Try getting reference for job openings Certifications in relevant Job spec will help Doing projects and showcasing them will also help Till you secure a job, you can try freelancing in your field of interest to gain experience and money. Or start with a small start up company where salary would be a compromise but once the gap is closed you can try for better openings with experience.
I also came across instahyre . You may trying logging into the same. Its is focussed exercise. You have to spend good time and effort.