David Carvalho Email & Phone Number

Luxemburgo

Designing and implementing high-availability (HA) infrastructure for mission-critical applications, ensuring robust, scalable, and efficient database solutions in both cloud and on-premises environments.Developing and maintaining Oracle and SQL Server databases, with a focus on optimizing performance and reliability.Crafting and implementing new automated processes for routine database maintenance tasks, such as data cleaning and administration, to enhance efficiency and reduce manual intervention.•Overhauling and re-engineering monitoring systems to provide real-time insights and proactive management of database health and performance.•Leading the upgrade of legacy databases and associated applications, ensuring seamless migration and minimal disruption to ongoing operations.•Collaborating with cross-functional teams to support continuous improvement of database services and integration with other business systems.

Malta

Collaborated with data and software developers to comprehensively manage the strategy for physical enterprise Oracle and MS SQL databases. Create sophisticated solutions to optimize database design, installation, configuration, upgrade, and maintenance activities. Ensure peak operational efficiency of systems to verify maximal uptime. Conduct extensive security audits to detect and resolve vulnerabilities.• Identified improvements in database potential and implemented solutions to optimize performance levels thorough application configuration and data optimization.• Automated previously manual tasks related to backups, log cleaning, table cleanup jobs, duplicate/data mask routine for production database import tests, health check scripts and monitoring.• Participated in the implementation of SAP Business Intelligence ecosystem and migration of reports to SAP BI.

Campinas, São Paulo, Brazil

Delivered principal support for critical environment on 9i, 10, 11g, 12c databases in UNIX/Windows systems. Collaboratively managed high-availability projects while troubleshooting problematic issues and building key reports distributed to global teams. Administered planning and implementation processes for database patch updates. Oversaw essential disaster recovery and backup strategies.• Handpicked by customer to join American Express team reserved for the most skilled DBAs.• Led deployment projects, automation efforts, server upgrades, issue escalations, and security strategy as top-level subject matter expert. • Upgraded server farm and critical applications in partnership with American Express. • Improved vital job runtime from six hours to less than one.

Campinas, São Paulo, Brazil

Coordinated essential processes while developing/maintaining primary and secondary controls. Crafted reports analyzing key performance indicators (KPIs) correlating with team’s efficiency. Adapted training plans and certification methods to align with business requirements. • Built CritApp application to detect server critical states that was globally adopted by IBM support teams. • Authored 120 different procedures in support of creating comprehensive training documents for new team members.• Acted as central contact point for the account team and customers to support scope negotiations, KPI reviews, and management plans.• Designated as final point of escalation on level one issues, customer complaints, and operational problems requiring development of remediation plans/RCAs.

Campinas, São Paulo, Brazil

Leveraged technical expertise to manage distributed platform operations. Spearheaded overall change management scope requiring exceptional troubleshooting abilities. Exhaustively managed a broad spectrum of technologies used for backup/restoration processes, business intelligence, and disaster recovery among others.• Promoted to level-1 support for middleware services after 6 months on the job.• Oversaw management, maintenance, issue resolution, and performance 10K-server network.