1980 - 1987 Extern Programmer-Analyst at Arnaldo C. Castro S.A.. System Developping for different companies. Consulting. Development of Inhibit’s Register of the Nation system.
1985 - Now Independent Consultant. System development. From 1993 - GENEXUS.
1983 – Army General Command. Payroll
1994 - Army General Command. Bookkeeping (GENEXUS)
1989 – Weapons and services school. Courses evaluation system.
Commerce and Industry
1989 – 1992 Supermarket’s “El Dorado” Group. System Developping. Consulting.
1985 – 1992 Kaluga S.A. System Developping. Consulting.
1988 - 2000 Uruguay-España: System Development. Consulting. Network Administration. Hardware Maintenance. DBA Manager. Quality Management.
1993 - Hospital of Clinics. Surgical Block system development. (GENEXUS – AS400)
1989 – 1996 Doctors Cossio's and Macri's ophthalmological surgical clinic. Consultant. Systems Development.
1996 - Uruguayan´s Health Department Equipment and parts control system. It solved a national grave problem (FOCOEX).
1984 - First Inhibit’s Register of the Nation system