Worked a long time as an application developer creating many kinds of systems written in Delphi, C++, Visual Basic, etc. Worked as electronic engineer coding microcontrollers written in C++ integrating desktop applications with electronic systems.
I graduated in Data Processing in 1999 and I work in the area of information technology since 2000.
I worked 6 years as a systems developer, programmer, DBA and systems analyst.
And 6 more years as an electronic engineer, designing PCBs, schematics, planning which ICs should be used and programming embedded microcontrollers.