At LUXOFT DE MEXICO, supporting Wolters Kluwer's Medi-Span, I developed and maintained data-intensive backends with Oracle PL/SQL, complex SQL, and Unix/KornShell. I investigated performance bottlenecks, data discrepancies, and application defects, then implemented and validated corrective changes.
At ELLUCIAN, I designed, developed, and supported Oracle solutions for higher-education clients across Latin America and Puerto Rico. I optimized an enrollment-related SQL query and supported its controlled production correction; I also delivered implementations, migrations, upgrades, and releases through GoLive.

