Ralph Castillo Email & Phone Number

• Managed, coached, mentored and developed a team of 20+ DBAs, including onshore, offshore, and nearshore.
• Prioritized tasks and workload proactively, and allocated resources to meet project deadlines and milestones.
• Scheduled team members to ensure 24x7 coverage to monitor and maintain databases.
• Played a pivotal role as a leader to implement and deploy security initiatives.
• Supported the implementation of Imperva and DBProtect to detect threats and mitigate security risks.
• Participated in program increment planning to define database requirements, impact analysis and forecasting.

• Coordinated internal and third-party resources to complete the build of the NoSQL POC environment.
• Gathered requirements and standardized software installation procedures and configurations for base locations.
• Managed department budget and forecasting and provided accurate cost estimates for major projects.
• Audited filesystems to validate standards and ensure minimum storage and memory requirements were met.
• Assessed the features and functionality of two competing NoSQL DBMS; selected Cassandra over Couchbase.
• Analyzed third-party specifications, including ease of use, scalability, licensing costs, support, and training.

• Installed Oracle, Oracle RAC, and binaries on Unix (AIX, SUN, HP).
• Standardized software installation procedures and configurations to prepare for silent install automation.
• Developed and implemented Unix (HP-UX, Solaris, AIX) standards for OS configurations for installations.
• Managed quarterly security patch updates and maintenance for thousands of servers.
• Monitored space utilization and provided 24x7 support for
• Obtained an HSPD-12 government security clearance for work on special projects. Environment: DB2 DBA on zOS Mainframe, UDB platform, PostgreSQL DBA

• Managed PDOAs, including eight production nodes, four development nodes, and six ORT nodes.
• Resolved issues on HMC, V7000, and network components.
• Reviewed logical and physical data models and implemented database structure changes.
• Maintained and implemented database monitoring scripts.
• Supported database upgrades and fix packs in development, test, and production environments. Environment: DB2–DBA Development/Production support team member on zOS Mainframe and AIX

Support multiple testing environments for end to end testing of critiacal Sprint mainframe Legacy applications. Execute job schedules and complete initial job issue resolultion. Build, maintain and review application environment data requirements. DB2 data loads and backups. CICS entries and approvals. Review testing schedules and work with application.

Mainframe operator and tape librarian. General operator duties, print and microfiche production. Mainframe backups and general maintenance. Production Control Unit Specialists. Systems application execution and applications issue resolutions. Systems optimizations as needed. CA7 application scheduling.