Java:
Core Java, Android SDK based, Netty;
Build &integration: ant, maven, teamcity;
Frameworks: Spring(data, jpa, security, oauth, boot), Hibernate, GWT
Testing: JUnit , PHPUnit, Selenium;
Logging: slf4j+logback, log4j;
Templates: Freemaker, JSP, JSF;
Servers: Glassfish, Tomcat, IBM WAS, IBM WPS

Другие языки и технологии:
Groovy: Grails framework;
Web: HTML5+CSS3 coding, LESS, JQuery, ExtJS, AngularJs;
XML: Xpath.
Selenium: Thucydides, Android, IOS
DB: Postgres, MSSql, Oracle

OS:
Linux (various distributions), FreeBSD, Windows

IDE:
Intellij IDEA, Eclipse, WebStorm.

VCS:
Git, SVN, Mercurial