Senior Oracle Database Administrator Resume
SUMMARY
- Senior Oracle Database Administrator having 8 Years of experience. I have strong technical knowledge as an Oracle Database Administrator, Oracle Golden Gate, Oracle weblogic Administration and Oracle EBS Apps DBA.
- Experience with large and complex database management systems.
- Installation and administration of Oracle 12c,11g on OEL, RHEL and Windows in OLTP and OLAP environment.
- Performed Migration, upgrade, applying patches, patch sets and critical patch updates of Oracle databases.
- Extensive experience in administering maintaining Oracle Applications E - Business Suite Application.
- Experience as DBA for Oracle Retail Applications like Oracle POS, Oracle SIM, Oracle RMS.
- Experience in installation/configuration of Oracle Retail 13.2 modules (ORMS, ORSIM, RIB, ORPOS).
- Expertise in implementing and configuring Oracle GoldenGate 12c on OEL.
- Discovery of Oracle GoldenGate in OEM 12c to monitor the status and lag of golden gate processes.
- Maintaining golden gate process to replicate data from production to reporting database.
- Good experience in troubleshooting issues related to Oracle GoldenGate replication.
- Worked on Oracle Exadata X2-2, X3-2, X5-2, X6-2 Machines.
- Good client facing experience having worked in UK & US.
- Good Knowledge in maintaining Oracle 12c database in Oracle cloud instance. Installation and configuration of Oracle database 11g, 12c RAC with ASM on multi node systems for OLTP environment.
- Extensive experience with Database Cloning and Refreshing pre-prod/dev databases with prod/pre-prod databases.
- Expertise in Oracle Weblogic server Administration.
- Configuration and Management of Data Guard on OEL.
- Experience with Data guard broker configuration and switchover.
- Experience in troubleshooting issues related to standby and production database sync using data guard.
- Experience on Data Replication using Snapshot, Materialized views, import/export.
- Expertise in Oracle Apps application cloning R12.1.x and R12.2.4, database refreshes patching using ADOP (Online Patching), adpatch and Opatch, apply CPU patches, handling configuration changes using Autoconfig.
- Backup and recovery of Oracle Databases using RMAN.
- Monitoring Day-to-Day Backups, Log’s & recovering them as per the requirement.
- Taking the RMAN incremental and cumulative backups.
- Design and implementation of Backup and Recovery strategies (both cold and hot backups) and performing periodical backup, restoration and recovery using RMAN (full and incremental).
- Testing and implementing different physical and logical backup and recovery methods including point in time, media recovery, full/partial, and data pump export/import.
- Performing clone of EBS instances from storage and RMAN backups.
- Automation of redundant database and application monitoring jobs using shell scripts.
- Knowledge on managing databases on EXADATA machines.
- Migrating the databases from one platform to another platform.
- Involved in cut-over activities on all the implementations and upgrade projects.
- 8 years of experience working in mission critical production and non-production systems involving complex architecture.
- Experience in Performance Testing of client Server and Web based Applications.
- 2 4*7 on-call production database support and maintenance including remote database support.
TECHNICAL SKILLS
ERP Environment: Oracle E-Business Suite 12.2.4, Oracle Retail Point of Sale, Oracle Retail Merchandising System, Oracle Retail Integration bus, Oracle Retail Store Inventory System.
RDBMS: Oracle 11g/12c RAC, Data Guard, Oracle Golden Gate 12c
Programming Technologies: UNIX Shell Scripting, SQL Scripting
Tools: Oracle Enterprise Manager (OEM), SVN, SQL Developer
Utilities: OEM, SQL*Loader, ASM, Export/Import, RMAN, TOAD, DataPump, Crontab, Rapid Clone, Rapid Install, Autoconfig, Opatch, adpatch
Operating System: Linux and Windows
PROFESSIONAL EXPERIENCE
Confidential
Senior Oracle Database Administrator
Responsibilities:
- As a Senior Administrator, I am responsible to handle first point escalation for all technical and process issues related to database.
- Provide technical subject matter expertise for Oracle database issues wherever required.
- Worked on Maintenance, Support, Patching and Cloning using Rapid Clone.
- Provide support to Oracle Data guard related issues and maintenance of it.
- Maintenance of Oracle Database 12c Two node Real Application Cluster (RAC) and responsible for high availability and load balancing.
- Worked on Oracle weblogic Administration.
- Identify the bottlenecks in Database operations and tune the performance as and when required.
- Ensure constant synchronization of data from Production to standby environments for all the databases
- Ensure proper communication and quick resolution as a crisis manager.
- Configured disaster recovery databases using Data guard and perform switchover & failover and monitor using Data Guard manager command line.
- Worked on Active data guard and performed Troubleshooting data guard environment.
- Performed complete Patch Analysis and application of Apps and DB Patches.
- Taking the RMAN incremental and cumulative backups.
- Weekly Data Refresh from Production to Development and Test environments using data pump export/import.
- Providing Application Support for performance and database related issues.
- Extensive experience in RMAN recovery in RAC and stand-alone database.
- Scheduling the backups for the database using EM 12C cloud control.
- Cloned schemas, objects and data between servers using Data pump.
- Experience in performing backup and recovery operations using RMAN.
- Restoration and Recovery of databases at the times of occurrence of critical failures.
- Performed Data file recovery using RMAN.
- Performed database refresh from production to test environment in both RAC and NON RAC environment using RMAN.
Confidential
Senior Oracle Database Administrator
Responsibilities:
- Building multiple databases in QA, Test and Production environments.
- Maintaining Production Oracle 12c RAC and non-RAC database.
- Involved in Hot and Cold backups of databases.
- Taking the RMAN incremental and cumulative backups.
- Involved in the continuous enhancements and fixing of production problems. Designed, implemented and tuned interfaces and batch jobs using PL/SQL.
- Developed and modified triggers, packages, functions and stored procedures for data conversions and PL/SQL procedures to create database objects dynamically based on user inputs.
- Created PL/SQL scripts to extract the data from the operational database into simple flat text files using UTL FILE package.
- Developed Advance PL/SQL packages, procedures, triggers, functions, Indexes and Collections to implement business logic.
- Configured disaster recovery databases using Data guard and perform switchover & failover and monitor using Data Guard manager command line.
- Troubleshoot issues related to Data guard in Production.
- Restoration and Recovery of databases at the times of occurrence of critical failures.
- Scheduling the databases backup using Cron tab.
- Created a Clone Database using RMAN on remote Server and used SRVCTL commands for Real Application Cluster (RAC) Databases.
- Troubleshooted the Cluster related problems.
- Worked on Oracle Enterprise Manager to do the daily tasks regarding the performance, maintenance.
- Support Oracle Data Integrated related issues.
- Performed Oracle Data Integrator upgradation in PROD.
- Upgradation of Oracle weblogic from 11g to 12c.
- Handle SOA composite and Mail configuration related issues to support SOA development team.
- Patch Application to Oracle EBS(E-Business suite), Databases as per schedule.
- Handling tickets raised by functional/technical/business users for applications including Oracle GTM, SOA, ODI, E-Business suite, Databases.
- Handling Alerts raised by alert monitoring system from Database and applications
- Schema Reorg Activities in Database to improve the performance
- Cloning of complete application and database from Production to Non-prod as per business requirements
- Performing Backup of RAC and non-RAC Databases and fixing issues related to backup/recovery
- Addressing Query response time and other Performance Issues with respect to E-Business suite
- Providing support to Oracle cloud instance.
- Regular database maintenance activities (tablespace management, datapump, purging logfiles)
- Created User accounts, Roles and granting required access permissions and privileges to the database based on the applications they are accessing.
- Designing Backup/Recovery policies which suits customer needs.
- Estimate growth of database size by detail analysis of the company’s future policies and generating reports for the management to act in advance.
- Installing OEM agents and managing databases using 12c EM and End-to-end implementation of EM12c.
- Involvement in space management, rectification of lock problems, managed quotas.
Confidential
Senior Database Administrator
Responsibilities:
- As a Senior Administrator, I was responsible to handle first point escalation for all technical and process issues related to database.
- Provide technical subject matter expertise for Oracle database issues wherever required.
- Provide support to Oracle Data guard related issues and maintenance of it.
- Implementation and configuration of Oracle Golden Gate 12c by gathering business requirement.
- Maintenance of Oracle Database 11gR2 Two node Real Application Cluster (RAC) and responsible for high availability and load balancing.
- Worked on Oracle weblogic Administration.
- Identify the bottlenecks in Database operations and tune the performance as and when required.
- Ensure constant synchronization of data from Production to standby environments for all the databases
- Ensure proper communication and quick resolution as a crisis manager.
- Plan and schedule Changes (CR) to be performed across environments, coordinating with different stakeholders.
- Patch Application to Oracle EBS(E-Business suite).
- Perform RCA for Major Incidents related to DBA tower.
- Perform Trend analysis, identify top few incidents related to Databases and work with respective teams/individual to minimize the incidents, Hardware troubleshooting & Vendor coordination.
- Implemented Oracle database backup & recovery solutions using RMAN.
- Extensive use of Oracle Data pumps Exports/Imports utility for moving data among the servers.
- Participate in business meetings with various stake holders on a need basis.
- Take corrective actions based on the customer satisfaction surveys.
- Training of new team members.
- Able to work on Knowledge acquisition and updates to related documents.