Samuel Gavazut

I've consistently taken the lead in driving pivotal cloud database migration projects throughout my tenure at the company. Key accomplishments include:

• Orchestrating the migration of a 2TB Oracle Database 11g from On-Premise to Oracle RDS 19c on AWS, leveraging Oracle Goldengate Classic architecture 19c and implementing bidirectional replication.
• Directing the migration of a 6TB Oracle Database 11g from On-Premise to Oracle Database 19c in OCI. This intricate process utilized Oracle Goldengate Cloud Services (21c) for bi-directional replication, complemented by an additional replication pathway from OCI to Azure.
• Configuring and updating an OEM 13.5 to monitor both On-Premise and Cloud OCI database instances.

As a key member of the Oracle ACS and Cloud Migration Services team, I've been entrusted with overseeing the entire database migration lifecycle to the cloud. This comprehensive role entails understanding client requirements, strategizing tailored migration plans for each database, selecting optimal cloud solutions, executing migrations, ensuring their success, and conducting post-migration tuning when necessary. My tenure has been marked by the following accomplishments:

Cloud Architecture & Configuration:

• Designed cloud architectures for database migrations to OCI, encompassing SaaS, PaaS, and IaaS.
• Executed tenant creation, network configurations, and VPN tunnel setups between OCI and On-Premises and applied IAM security policies.

Database Migrations & Implementations:

• Successfully migrated and upgraded approximately 100 Oracle databases across versions (11g, 12c, 18c, 19c) to Oracle Cloud Infrastructure using strategies like Golden Gate, Data Guard, XTTS, ZDM, and Data Pump.
• Implemented Exadata Cloud Services (ExaCS) and Exadata Cloud at Customer (ExaCC) on versions X8M-2 and X9M-2 for multiple banks in Latin America.
• Transitioned ERP and CRM solutions, including JD Edwards, Siebel, and SAP, to OCI.
• Rolled out Oracle Autonomous Database and Oracle Autonomous Data Guard in OCI.
• Built Real Application Clusters (RAC) instances in 19c with 2 and 4 nodes for both On-Premises and Cloud migrations.
• Migrated numerous databases from Non-CDB to CDB and Pluggable Databases.

Security & Compliance:

• Configured Oracle Audit Vault and Oracle Key Vault for multiple OCI instances and set up TDE in On-Premises databases for cloud readiness.

Monitoring & Automation:

• Implemented Observability and Operation Insights for cloud-migrated databases, aiding in tuning and capacity planning.
• Automated infrastructure deployment in OCI using tools like Terraform and Ansible.

Multi-Cloud Migrations:

• Played an instrumental role in multi-cloud migrations to platforms like Amazon RDS and Azure."

At ActiveIT, I've had the privilege of collaborating with clients across various Latin American countries, spearheading numerous projects. Some of my key accomplishments include:

Oracle Database Migrations & Configurations:

• Successfully migrated all productive and pre-production environments from Oracle Database 11.2.0.4 to 12.2.0.1 for two leading financial firms in Chile and Colombia. These migrations employed Oracle-based strategies like Data Guard and Oracle Golden Gate, involving the construction of six Oracle RAC databases with two nodes each and four Data Guard configurations.
• Administered and tuned databases on Oracle Exadata, focusing on infrastructure, huge pages adjustment, IORM, and other database parameters.
• Executed multiple installations, migrations, and administrations of the Multitenant database.
• Configured Oracle RAC databases with Flex redundancy and Domain Services Clusters (DCS).
• Installed and configured Oracle databases 18c and 19c, Oracle Cloud Control 13c, and BI Publisher in versions 11 and 12 (both clustered and standalone).

Database Administration & Tuning:

• Enhanced database intonation techniques using methods like Regression Analysis and Database in Memory.
• Administered and tuned several PostgreSQL databases spanning versions 9 to 12.
• Implemented, administered, and tuned SQL Server databases across 2016, 2017, and 2019 versions.
• Offered level 2 and 3 support for incidents related to Oracle databases, including complex migrations, RAC instance tuning, and Golden Gate implementations in versions 12.1, 12.2, 18c, and 19c.
• Tuned Oracle databases specifically for JD Edwards (ERP) Production Databases.

SQL Server & Cloud Migrations:

• Implemented Always On Failover Cluster Instances in SQL Server.
• Migrated multiple SQL Server databases to Azure.

While residing in Toronto, Canada, I honed my English skills and collaborated remotely with companies in Colombia, Chile, and Venezuela. My primary responsibilities encompassed the configuration and management of Oracle RAC databases, specifically versions 11g and 12c. Beyond that, I fine-tuned queries using PL SQL and Oracle Spatial and engaged in projects focused on SQL Server Mirroring Configuration.

During my tenure at SETI, I closely collaborated with clients in the banking and insurance sectors, contributing to projects for esteemed companies like Fiduciaria Bogotá, Banco de Occidente, Corredores Asociados, Banco Corpbanca, and Banco Davivienda. My key responsibilities and accomplishments included:

Oracle Database Management:

• Installed, configured, patched, cloned, and upgraded Oracle Databases on AIX, Solaris, and Linux platforms across versions 9i, 10g, 11g, and 12c.
• Tuned Oracle databases specifically for the Murex application.

Security & Data Protection:

• Installed and administered Oracle Audit Vault for enhanced database security.
• Configured Oracle Data Guard and Data Guard Broker for database versions 10g and 11g, including switchover and failover operations for multiple standby databases.

Cluster & RAC Environments:

• Managed and tuned databases in RAC and clustered settings.

SQL Server Administration:

• Oversaw the administration of SQL Server databases for versions 2005, 2008, and 2012.

Weblogic Application Management:

• Installed, configured, and managed applications on Weblogic.

At Seguros Constitución, one of Venezuela's leading insurance companies, I undertook a range of pivotal tasks that underscored my technical expertise. My key responsibilities and accomplishments during this period included:

Oracle Management:

• Installed, configured, and administered Oracle VM.
• Set up Oracle APEX and its Listener on Glassfish.
• Managed and configured Oracle Application Server (OAS) applications.
• Administered and optimized Oracle databases, specifically versions 10g and 11g.

Backup & Recovery:

• Implemented intricate backup and restore policies using Oracle RMAN.

SQL Server Administration:

• Oversaw the administration of SQL Server databases across versions 2005, 2008, and 2012.

At Y & V Consulting, I provided specialized consultation to clients in the banking and insurance sectors, contributing to projects for notable companies such as Banco Nacional de Credito, Seguros Mercantil, and Tebca. My key responsibilities and accomplishments during this tenure included:

Oracle Database Management:

• Installed and configured Oracle databases on Solaris and AIX platforms.
• Managed Oracle databases across versions 9i, 11g, and 12c.

Clustered Environments:

• Administered and optimized databases in Oracle RAC clustered settings.

Backup & Replication:

• Replicated database environments using Oracle RMAN.

Data Protection & Continuity:

• Configured Oracle Data Guard and Oracle Data Guard Broker for database versions 10g and 11g.

At Grupo Ingeolan, I provided specialized consultation to clients in the insurance and mass consumption sectors, collaborating on projects for esteemed companies such as Liberty Seguros, Coca-Cola FEMSA, Empresas Polar, El Nacional newspaper, and MRW. My key responsibilities and accomplishments during this tenure included:

Oracle Database Management:

• Installed, configured, and administered Oracle databases on Windows Server platforms across versions 9i, 10g, and 11g.
• Developed database objects and complex queries using Transact-SQL, PostgreSQL, and PL SQL, incorporating Oracle Spatial and Oracle Text.
• Built spatial databases for both Oracle and SQL Server, integrating them with mapping tools like ESRI and MapInfo.
• Developed applications utilizing Oracle APEX.

SQL Server Administration:

• Installed, configured, and managed SQL Server databases for versions 2005, 2008, and 2012.

Database Replication & Integration:

• Replicated database environments using Oracle Streams.
• Constructed databases with Heterogeneous Links, enabling communication between Oracle databases and other platforms like SQL Server and Postgres.