I am working since 1989 with Unix systems, and since 1995 with Windows systems.
Senior Developer and Systems Architect. Some Oracle and Sybase Database Administration skills.
Senior developer of server and batch applications for Unix and Windows.
Senior developer for C, C++ and Java applications, with strong knowledge of multi-threaded applications, network programming and inter-process communication.
Broad knowledge of script languages for system administration, including Shell Script, awk, Powershell and VBScript.
Some skills in 4GL and RAD development for Windows.