Senior Database Administrator Resume
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-ILDatabase 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.