Operating systems
1. Mainframe
2. Linux
3. AIX
4. HP-UX
5. FreeBSD
6. Sun Solaris System V
7. MS Windows

Network Services
1. CISCO
2. LINUX Router
3. Telebit
4. Livingstone
5. Planet wireless
6. AT&T Wireless
7. IBM
8. 3Com
9. NORTEL
10. Cabling System

RDBMS (Remote Database Management System)
1. MySQL
2. Oracle
3. MS SQL Server
4. MS Access
5. Postgress

Application Developer
1. Unix/Linux programming (Perl, Bourne shell - bash, Korn shell - ksh, C Shell - csh, C++, php, ProC++, Java, Java Script, Java Applet, Borland Delphi)
2. MS Windows programming (Visual Basic, Visual C++, Java, Crystal Report, Macro Excel, Front Page, Interdev, Borland Delphi, Coldfusion)
3. Mainframe programming (CA-EasyTrieve reporting, FCOBOL,JCL)
4. Database Programming (PL/SQL Store procedure)

Protocols/Standards
1. TCP/IP Socket programming
2. ISO8583
3. CGI (Common Gateway Interface)
4. WML (Wireles Markup Language)
5. XML (Extensible Markup Language)
6. ODBC (Open Database Connectivity)
7. JDBC (Java Database Connectivity)
8. DBI (Perl Database Interface)