UNIX: Linux, Solaris, FreeBSD
Java Development: Servlets, Portlets, JSP, JDBC, DOM, JAXP
C/C++ Development: POSIX, Sockets, Pthreads, NSAPI
Network Technologies: TCP/IP, HTTP, SSL, SSH, LDAP, SMTP
Web Client Technologies: HTML, CSS, DOM, Javascript, AJAX
Database Technologies: Oracle, MySQL PostgreSQL
Java
AJAX