Thanks for your suggestions.

Maybe I should elaborate on my background a little more. I recently completed my Masters in Computer Engineering from University of Florida and am working at Ebay in Philadelphia. I know my basic algorithms and data structures, and can confidently write programs for implementing them.

I would like to work as a full stack developer in a start up. The technologies I am interested in developing my skills are : Java, REST API programming, Javascript, HTML, CSS.

Could you suggest good sources online or otherwise to develop my skills in these areas?