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Senior Database Administrator Resume

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Piscataway, NJ

SUMMARY:

  • An accomplished Database administrator with 8+ Years extensive experience in Information Technology. Intensively worked on various platforms. Core areas of skills are Oracle 9i, 10g, 11g &12c, Oracle RAC and Data guard, ASM, Golden Gate on UNIX, Linux and IBM AIX using various leading technologies.
  • Proficient in Database Administration activities such as installation, Database Creation, Sizing, Backup and Recovery, Performance tuning and Capacity Planning.
  • Experience in handling large sized databases, handled up to 15TB size databases for SAP/SEIBEL applications.
  • Excellent experience as an Oracle DBA in various platforms such as HP - UX, AIX, Red Hat Linux, Windows.
  • Plan, install, configure and perform upgrades of Oracle software on various platforms.
  • Used Data Pump (expdp, impdp) to take backup at database level or table space level and also to accomplish table level and full database de-fragmentation.
  • Expertise in setting up Oracle 12c Cloud Control Enterprise manager and handling end to end management of OEM 12c suite.
  • Experience in setting up standby database using Data guard, configuration, maintenance, and administration for disaster recovery. Handled 10+ projects for DR Recovery Exercise and setting up DR sites.
  • Expertise in Golden Gate Installation, configuration and end to end management/troubleshooting and tuning of Golden Gate replication technologies.
  • Automated many common tasks using Crontab including Backups, exports and imports, archiving old records and verification of such processes.
  • Experience in Upgrade and Migration of Oracle database to higher version installing patches and other platforms without/with using Oracle Data Upgrade Assistant (DBUA).
  • Migrated number of databases from Non-ASM to ASM.
  • Installation, Administration and Maintenance of SQL Server Instances.
  • Expert experience in Hot and Cold Backup and Recovery, cloning of databases using RMAN, Commvault.
  • Proactive monitoring, identifying areas that need to be improved in the application and database using AWR, ADDM and OEM Grid Control.
  • Created and maintained Users and Roles with appropriate Privileges and Profiles.
  • Hand on Experience in Oracle Enterprise Manager Grid Control.
  • Backup of RAC Database using RMAN.
  • Hands on Exp in Managing Cluster ware components using SRVCTL and CRSCTL utilities.
  • Having good knowledge on Mongo DB.
  • Responsible for managing the DBA team (15+) to work effectively in a business-critical production environment and in 7x 24 supports. Good history of bringing the DBA team and IT team to enhance the productivity.
  • Attending incident bridges for any production issues and working with app team to solve the issues at earliest. Made sure that client SLA is maintained for all level severity issues.
  • Directed the team to implement proactive database monitoring, and automation of database maintenance, diagnostic reports, databases reports ®ular database operation tasks.
  • Kept the databases on track with regular DBA activities like database upgrades, applying patches, data model changes, new database server setup, backup/recovery, and security administration.
  • Good co-ordination and communication with system administrators, business data analyst and development teams.
  • Very good team player and also has the ability to work independently when needed and a quick learner of new technologies.
  • Excellent written and verbal communication skills.

TECHNICAL SKILLS:

OPERATING SYSTEM: HP-UX, IBM AIX, Red Hat Enterprise Linux 3/4/5

RDBMS: Oracle 10g/11g/12c, SQL Server 2008/2012/2014

Tools: Recovery Manager (RMAN), Commvault, VERITAS Net backup, Exp/Imp, Data pump, dbforge, Delphix, foglight, SCOM,SQL*Loader, TKPROF, Dbverify, Putty, TOAD, Remedy8.1,Support Now Portal

Monitoring Tools: OEM, 12c Cloud Control, Scripts based Monitoring, Golden Gate Director

Replication: Data Guard, Golden Gate

PROFESSIONAL EXPERIENCE:

Confidential -Piscataway, NJ

Senior Database Administrator

Responsibilities:

  • Implemented Automation of PSU Patching through OEM12c.
  • Upgrading production and development databases from 11g to Oracle 12c.
  • Configuring the databases in OEM12c cloud control and configuring the alerts by installing the agents on clients.
  • Implemented Golden gate replication methods between multiple databases. Implemented Golden Gate Director for monitoring Oracle Golden Gate.
  • Creating ASM Disk & Disk groups and Maintaining Oracle ASM instance.
  • Converted single instance to RAC.
  • Installation of Oracle Components like JVM, Oracle TEXT,XML DB on existing Oracle Database.
  • Deployment of Plug-in's at the database level through OEM12c.
  • Oracle Database backup's configured through Commvault.
  • Responsible for setting and managing user accounts, Granting required privileges to users.
  • Installation, configuration and maintenance of MS SQL Server 2008R2, 2012 and 2014.
  • Developed scripts for Offline Database Report, Disk Space alert report.
  • Applying the latest Service packs as per standards and if needed applying the hot fixes.
  • Cloned the SQL Server instances from production to Development.
  • Responsible for database backups and restoration, backup strategies and scheduling backups.
  • Provided the requested reports to the SOX (Sarbanes-Oxley) Team.
  • Creating the users at the database and server levels and assigning the appropriate permissions as per the request
  • Refresh the database among different environments.
  • Involved in troubleshooting and documenting database problems and resolutions.
  • Responsible for handling around 180+ database servers.
  • Directed a team of DBAs on activities like database upgrades, applying patches, data model changes, and security administration.

Environment: Oracle 12c/11g RAC, HP-UX and RHEL, AIX, Unix, Data Guard, RMAN, PL/SQL,OEM 12c,Commvault,Golden Gate, SCOM, SQL SERVER 2008R2,2012/2014

Confidential - St.Louis, MO

Database Administrator

Responsibilities:

  • Managed appropriate use of free space within tablespaces, reclaimed space whenever possible. Reorganized tables and indexes within databases when needed.
  • Monitored the production Oracle alert logs for database errors.
  • Upgraded 10.2.0.4 Two Node RAC ASM Database to 11g R2 Two Node RAC ASM
  • Advanced Backup and Recovery using Oracle’s RMAN software; used offline/online for recovery in a production environment via Korn shell scripting.
  • Mentor other DBAs in effective use of RMAN software, and my scripts.
  • Ongoing proactive database-level performance tuning, with a good working knowledge of Oracle internals.
  • We have converted Single Node Non-ASM Database to 2 Node RAC ASM Database. We achieved this using Data Guard.
  • Supporting Data Warehouse Database i.e. over 13 TB in size.
  • Currently helping client to use existing infrastructure to achieve Maximum benefit to reduce cost and maximum performance.
  • Actively working with client for Server Consolidation & Database Consolidation.
  • Changes were made dynamically whenever possible to fulfill high-availability requirements.
  • Enforced need of regular data purging processes from production, design and development, to deployment.
  • Implemented and maintained Oracle 10g Data Guard/standby databases for fail-over purposes.
  • Propagation from primary to standby via automated scripts, and sometimes uses standby databases to immediately restore primary database.
  • Experience with ‘graceful’ switchover and switchback between primary and standby databases.
  • Replicated to a disaster recovery site for increased server manageability and availability.
  • Participated in development of enterprise-wide security standard methodology, and ongoing deployment.
  • Installation of RAC and Managing RAC Environment efficiently.
  • Create and maintain materialized views.
  • Implementing and maintaining database security (create and maintain users, roles and assign privileges)
  • Monitored system resource availability and responded to system memory and data issues.
  • Expert with OEM Grid Control.

Confidential - Atlanta, GA

Database Administrator

Responsibilities:

  • Lead a team of 12 DBAs on Oracle 9i/10g/11g Upgrades, applying patches, and coordinated with the development team for implementing data model changes. Also, hands on experience with 11g upgrades.
  • Responsible for reviewing the physical database design and provide the suggestions/modifications on physical design of the database for performance.
  • Installed configured and maintained multiple Oracle10g RAC databases and Data Guard instances to increase high availability, scalability and disaster recovery. Also, implemented Golden gate replication methods.
  • Involved and worked directly in migrating multiple Oracle Databases from Sun Solaris/HP-UX to AIX based system.
  • Database SQL Tuning using SQL Profile/Outlines, ASH and AWR reports.
  • Worked very closely in implementing Oracle OEM Grid control and mentoring all the database through the grid. Also, analyzed AWR reports daily and resolved the issues, if any.
  • Worked with DBA team to perform database performance analysis, capacity planning, system sizing and ongoing maintenance/tuning to ensure maximum performance.
  • Helped the DBA team to implement, tested and maintain backup and recovery procedures using RMAN
  • Involved in troubleshooting and documenting database problems and resolutions.
  • Instrumental in creating the backup/recovery and Disaster recovery strategies and helped the DBA team to follow them.
  • Managed and worked with the DBA team to adhere the standard operating procedures, database standards best practices and published them in SharePoint location, which in turn produced consistent results.
  • Keep updating the knowledge in latest technologies of Database Servers, Database features and provided the right direction for better cost effective solutions.
  • Tracked the team on regular DBA activities like database upgrades, applying patches, data model changes, new database server setup, backup/recovery, 7 x 24 support, on-call rotation and security administration.
  • Hands on experience in Oracle RAC, Data Guard, RMAN backup/Recovery, Grid Control, SQL tuning, PL/SQL, and Shell scripts.
  • Responsible for the DBA team to get Sarbanes-Oxley (SOX) and PCI compliance, and for satisfying SLAs.

Environment: HP DL360/380 Linux Servers SUN SPARC/6500/V880, Oracle 8i/9i/10gR2 RAC, Oracle Grid Control, Data Guard, SQL*Loader, SQL, Veritas File systems, RMAN, Toad, Oracle TDE, DOM

Confidential - Chicago-IL

Database Administrator

Responsibilities:

  • Strong experience in installation and configuration of Oracle 9i/10g.
  • Maintain and monitor the physical layout of Disk storage, table spaces, data files, and object extents.
  • Monitor and analyze Oracle trace files and alert log for Oracle errors.
  • Implementing the incremental, cumulative incremental and full RMAN backup for each database to have space management and effective recovery.
  • Generation of AWR, ASH reports as per the customer Request.
  • Granting the required privileges to the user.
  • Configuration of table space and Archive utilization scripts through Crontab.
  • Modifying Oracle parameter (init.ora) for Oracle performance and growth.
  • Applied latest releases of the RDBMS patches from Oracle to the Production and test instances to resolve few technical challenges & issues.
  • Proactive monitoring, Performance Tuning of Databases.
  • Taking export backup of tables for future database recovery.
  • Preparing daily health monitoring report
  • Managing Databases, Table space / Data File management
  • Root Cause analysis for Database failures and Oracle Internal Errors caused
  • Automating DBA Tasks to simply management using Shell Scripts
  • Schema backup and restoration on production and UAT environment using data pump
  • Participation in regular team meetings including customer calls.
  • Preparing documentation for the DBA activities.

Environment: Oracle 11g/10g/9i, RHEL, AIX, Unix, RMAN, Export/Import, OEM Grid Control, PUTTY.

Confidential -Santa Clara, CA

Database Administrator

Responsibilities:

  • Managed appropriate use of freespace within tablespaces, reclaimed space whenever possible.
  • Reorganized tables and indexes within databases when needed.
  • Developing methods to install and create databases as per user request.
  • Prepared the checklist for Patching, Migration& Upgrading of databases.
  • Supported as a Development/Production DBA to 500 plus database on different servers including databases of TB in sizes.
  • Monitoring the database growth on daily basis, Addition of table spaces, data files.
  • Creation/Drop of Redo log files.
  • Generating and analyzing AWR and ASH reports.
  • Implementing and maintaining database security (create and maintain users, roles and assign privileges)
  • Monitored the production Oracle alert logs for database errors and system resource availability and responded to system memory and data issues.
  • Database Tuning using AWR SQL Reports, ASH Reports, ADDM, and Cloud Control
  • Create/Drop tablespaces and user roles on Adhoc basis.
  • Cloning/duplicate of database with RMAN (Recovery Manager) and user managed backups like hot or cold backups.
  • Maintaining nightly backup, finding root of cause for failed jobs.
  • Involved in Production, Development and Test support
  • Hands on Experience in installing and configuring Oracle 10g, 11g RAC on Linux.
  • Worked on Data Guard with Physical Standby configuration with hot backup and testing it for failover and switch over in different modes.
  • Efficient in managing database server from command line, OEM (Oracle Enterprise Manager) Grid Control.

Environment: Oracle 11g/10g/9i, RAC,SOLARIS, HP-UX and RHEL, AIX, Unix Data Guard, RMAN, OEM Grid Control, PUTTY,OEM.

Confidential

Database Administrator

Responsibilities:

  • Installation and implementation of the Oracle 9i,10g on different platforms.
  • Manage the database for over 75G size.
  • Created users, tablespace, roles and assign the privileges to them.
  • Monitored the production Oracle alert logs for database errors and system resource availability and responded to system memory and data issues.
  • Upgradation from Oracle 9i to Oracle 10g.
  • Implement the automated Hot Backup scripts for the Daily full backup created in Korn Shell.
  • Backup of Databases using Logical (Export & Import) & Physical (Online & Offline).
  • Changes were made dynamically whenever possible to fulfill high-availability requirements.
  • Documenting day-to-day activities, Changes and Development.
  • Replicated to a disaster recovery site for increased server manageability and availability.
  • Implementing and maintaining database security (create and maintain users, roles and assign privileges)
  • Managed appropriate use of freespace within tablespaces, reclaimed space whenever possible. Reorganized tables and indexes within databases when needed.

Environment: Oracle 11g/10g/9i, RHEL, AIX, Unix, RMAN, Export/Import, OEM Grid Control, PUTTY.

Confidential

Database Administrator

Responsibilities:

  • Installation of Oracle 10g software on LINUX Servers.
  • Upgraded the Database from 10.2.0.1 to 10.2.0.4
  • Applied CPU patches using Opatch for Every quarter.
  • Cloning of production database to testing.
  • Implemented Backup strategies (Hot & Cold backup).
  • Implemented the concept of Data pump
  • Interaction with client/users on various issues.
  • Troubleshooting server configuration files such as tnsnames.ora and listener.ora.
  • Resolving user issues like long running sessions and locks.
  • Taking care of all other daily routine DBA tasks like creating users, roles, table spaces,addressing alerts triggered from monitoring tools etc.

Environment: Oracle 11g/10g/9i, RHEL, AIX, Unix, RMAN, Export/Import, OEM Grid Control, PUTTY.

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