What kind of Web Service you need. Now a days REST services are made very quickly and produce JSON as output.
I am Sun Certified Java Programmer. Completely into java technologies. 10+ years of experience. Mostly into designing, architecting and coding enterprise level projects.
My skills: Java, J2EE, Big-Data (Apache Solr and ElasticSearch) Spring, Hibernate, Maven, jQuery, Smartclient, AJAX, JSON.