Maheshkumar Sivasekar

• Worked as a database consultant/lead database administrator, responsible to Manage, Administer IKEA database Infrastructure. Currently responsible for very Large Warehouse Databases & SPOC for Goldengate Environments implementation / Administration in Integration area
• Collaborated with stakeholders to gain complete understanding of project goals and objectives.
• Applied various skills to evaluate, design, implement and optimize databases and database applications.
• Well Experienced in administering, Migrating all IKEA’S Critical database systems.
• Team Leader with excellent Interpersonal, Analytical and Communication skills.
• Handled the cloud migration project for databases from HP platform to on-prem private cloud.
• Automation using ansible template on various Database monitoring, backup jobs monitoring, execution and major PSU patching activities, initial database build/deployments.

• Experienced in Working on Waterfall & Agile Methodologies and tools like GITHUB, JIRA  Installation, Managing & Administrating Oracle Dataguard 11g/12c/19c on Linux and AIX machines to maintain high availability.
• Experience in Administering Oracle Real Application Clusters (RAC) (11G/12c/19c)
• Experienced in Migrating/upgrading Oracle Databases from 11G-12c & 12c-19c.
• Implementing Security policy (Encryptions) for Critical database systems as per GDPR / China Compliance.
• Applying Database PSU/Security/bug fix patches for Linux (Standalone/ Cluster) and AIX machines for all 11G /12c /19c database systems.
• Installation, Administering & Troubleshooting of Oracle Golden gate replication setups for Oracle databases (Direct / downstream / Classic / Microservices / Bi-directional).
• Well experienced in Database Performance tuning & SQL Tuning.
• Always Working in Collaboration with Application teams to improve new methodologies to get best in IKEA Applications.
• Responsible for implementing Backup & Recovery strategies using RMAN, Hot backups, Cold backups and Logical backups. Knowledge in Rubrik backup solutions.
• Excellent problem analysis skills to find the root cause of the issue and fix the same.
• Enterprise Manager 11G/ 12C / 13C & Splunk.
• Writing Shell script for daily database maintenance activities & for monitoring

• As a senior software engineer in Oracle ,responsible for supporting global customers on their database install, patching upgrade/migration support and issue troubleshooting on their infrastructures.
• Have been a part of global testing team and a single point of contact for 11.2.0.4 AIX April 2016 PSU release and 12C AIX 2016 PSU July release and been part of beta testing for the database release 12.1.0.1 multitenant architecture.
• Proficiency in installation, patching, upgrade on 10G/11G/12C for RAC and NON-RAC database
• Proficiency on 12c Multitenant environment, creating CDB, PDB and converting non CDB to CDB, plug-in/plug-out PDB, resolving Plugin violations, resolving datapatch related issues on Multitenant.
• Supported Exadata 12c proactive-BP installations issues coordinating with customer
• Proficiency in Creating the databases in both RAC, NON-RAC environments, registering the database with SRVCTL (server control utility) in RAC environment.
• Advance Consulting support on troubleshooting the Oracle grid patching and cluster ware installation issues for global customers

Responsible as a Senior System Executive to manage and maintain basic level Oracle database and Linux administrator role. Provided technical support to the Server, Storage devices and Operating System. Responsible for hardware up-gradation and installation of their software programs.

• As shared resource to administrating and troubleshooting for LINUX and database support.

• Remotely managing UNIX servers, working on incidents, and changes. Involving Incident Bridge and assisting application team and DB team from Server-end.

• Performance monitoring using vmstat, iostat, sar, topas, netstat and nmon and analyzing these reports to figure out any performance issues.

• Responsible to monitor database health check, backup management and capacity monitoring.

• Responsible for documenting the database issue RCA document.

• Responsible for managing ASM disk group maintenance, handling disk addition and DB filesystem maintenance.

• Responsible for handling database business as usual activities.