Hi,
i'm 5years experience Java J2EE developer and 4years handons gwt developer with good experience in developing web application using GWT, Ajax, html, css, hibernate, struts and very strong on Database PL/SQL and webservices (REST, XML, JSON) also.
I'd recently done similar big web application project on gwt. and also frontend application completely on jQuery, and ajax framework, please letme know if i can help you.
Regards,
liferay-developer