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Ernesto Sanchez de Tagle

@ernestosanchezdetagl

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Oracle DB & EBS Specialist at DLL Group who upgraded Oracle EBS across LATAM with zero unplanned downtime.

Mexico

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At DLL Group, I directed the architectural design, maintenance, and regional upgrade of Oracle EBS R12 to 12.2 / 19c across LATAM, with zero unplanned downtime for mission-critical financial applications.

I managed AML Financial Compliance Systems integrated with Oracle Financials, orchestrating two full system upgrades and cutting resolution times by 80%. I also automated backend workflows with PL/SQL and UNIX/Linux Shell scripts, saving over 15 operational hours monthly.

At Softtek, I worked as Co-Technical Lead & Software Engineer on enterprise Oracle database systems and UNIX Shell scripts across LATAM projects. I designed automated batch scheduling workflows using Control-M, optimizing processing cycles by 75%.

Earlier, I developed Oracle database solutions at Secretaría de Economía and web applications and services at Fuller Cosmetics, GRUPO SETI S.A. de C.V., and Mercer Consulting. My work included database performance tuning, financial transaction workflows, and integrations with legacy IBM AS/400 infrastructure.

Experience

Work history, roles, and key accomplishments

Oracle DB & EBS Specialist

DLL Group

Apr 2019 - May 2026 (7 years 1 month)

Directed architectural design and regional upgrade of Oracle EBS R12 to 12.2/19c, ensuring zero unplanned downtime. Managed AML financial compliance systems, cutting resolution times by 80% and orchestrating two full system upgrades.

Oracle EBS Oracle Financials Pl SQL SQL UNIX Shell Scripting AML Compliance SLA Management L2 L3 Support

Co-Technical Lead & Software Engineer

Softtek

Jun 2011 - Apr 2019 (7 years 10 months)

Spearheaded end-to-end analysis, architectural design, and PL/SQL development of enterprise Oracle systems and UNIX Shell scripts. Led cross-functional teams under governance frameworks, delivering 100% of projects on schedule.

Oracle Pl SQL UNIX Shell Scripting Control M Batch Automation L2 L3 Support Root Cause Analysis Team Leadership

Software Engineer

Secretaría de Economía

Mar 2010 - Jun 2011 (1 year 3 months)

Analyzed, designed, and developed complex Oracle database solutions for government-scale applications. Conducted performance tuning and SQL/PLSQL optimization, accelerating query execution speeds by 75%.

Oracle SQL Pl SQL Performance Optimization UML Release Management Deployment

Software Engineer

Fuller Cosmetics

Jul 2009 - Mar 2010 (8 months)

Engineered end-to-end web applications using C#, ASP.NET, and SQL Server. Built secure REST/SOAP web services with SSL for payment processing and integrated with legacy IBM AS/400 systems.

C#ASP.NET HTML CSS JavaScript SQL Server REST SOAP SSL AS400 system

Software Analyst & Developer

GRUPO SETI S.A. de C.V.

Jun 2009 - Jul 2009 (1 month)

Developed bank check processing control applications using C#, VB.NET, ASP.NET, and Sybase DB. Engineered web services for financial transactions and authored technical documentation across SDLC phases.

C#VB.NET ASP.NET Sybase Web Services SDLC

Software Analyst & Developer

Mercer Consulting

Mar 2009 - Jun 2009 (3 months)

Designed and built an employee benefits web management platform using C#, ASP.NET, and Oracle 9i. Gathered business requirements and engineered web services for inter-system data exchange.

C#ASP.NET Oracle 9i Web Services Requirements Gathering