How to apply for H1-B visa

I am a JAVA developer and have more than 15 year of experience, My current company already filled for me H1-B visa 3 times but unfortunately my name was not selected as they mentioned. Now this and following years I want to apply by myself.

Please guide me how I can apply for H1-B visa or where I have to post my resume. I already registered on

Your help in this regard is highly appreciate able.