Sysadmin for the largest enterprise in Mexico for 3 years.
Freelance developer for 2 years.

Experience in Microsoft technologies, mostly with their server family and SQL Server.
MCSE for Windows 2003 family of products.

Knowledge of networking infrastructure, HP's solutions for IT management (namely Openview) and their HP-UX platform.

Done intensive development for production systems with Java, ASP and PL/SQL, as well as the planning and design stages, all focused to the manufacturing of legacy enterprise systems.