Senior Oracle Dba Resume
SUMMARY:
- 11+ years of experience as an ORACLE 12c/11g/10g/9i/7 DBA on different UNIX/Linux and Windows platforms advanced features including Oracle ASM 11g/10g and Oracle RAC 11g/10g, GRID, Dataguard
- Proficient in databases Performance Tuning using Explain Plan, STATSPACK, TKPROF, AWR, ADDM
- Installation, configuration and administering Oracle Golden Gate replication
- Perform various tasks like installation, configuration, upgrades, patches, performance tuning, backup and recovery, production support, cloning, space management, database security
- 24*7 production database support with Support to developers & end - users
- Implemented RMAN backup (Full, incremental) and recovery, Incomplete recovery and disaster recovery using Standby database or Data Guard
- Performance Tuning i.e. tuning applications, I/O distribution, rollback segments, buffer cache, redo mechanisms
- Successfully implemented logical standby database using Oracle Data Guard feature for High availability configuration
- Implementing the Golden Gate Unidirectional for reporting database
- Operational Responsibilities - Database refreshes/ backups, security, documenting standards and procedures, data migration, data clean-up, copy data archiving, etc.
- Experience monitoring and managing the databases in OEM Grid Control (10g, 11g, 12c, 13c)
- Possessed a strong working knowledge of OAS 10g and web services technologies.
- Implement Oracle TDE column encryption for advanced security.
- Applied Java security patch to WebLogic server domains. Deployed Java EAR files.
- DBMS job and DBMS scheduler jobs, Ksh scripting - setup cronjobs, implemented nagios and em7 monitoring tools with SQL scripts
- Accessing remote database with DB link, HSODBC, ODBCINST and third party tools
- Working knowledge of SQL server 2008 and MySQL databases, Postgres
- Working experience of Tomcat/Apache, mid-tier applications like Weblogic 12c/ OAS 10g/Apex and upgrades/ http:/ WebServers/ Nagios monitoring tool/ EM7 monitoring tool
TECHNICAL SKILLS:
Languages: SQL,PL/SQL, HTML, DHTML, Bash, Pearl, Python
Database: Oracle 11gr2, 12c
RDBMS Tools: Toad, SQL*PLUS, RMAN, DGMGRL, ASMCMD, SRVCTL
Others: Microsoft Office, Microsoft VISIO, Microsoft Project 2003 Server
Platform: Unix (Linux, AIX), Windows
PROFESSIONAL EXPERIENCE:
Confidential
Senior Oracle DBA
- Production support DBA. Responsible for other duties/projects as assigned
- Successfully migrated 11g/12c Databases and applications like Weblogic, Jboss from one location to other.
- Proficient in 10G/11G/12c RAC Installation/Maintenance and Troubleshooting CRS/Grid Infrastructure and ASM issues
- Extensively working on new builds of 11g/12c RAC / RAC - ONE / Data guard environments with ASM on Linux/AIX platforms.
- Extensively worked on Catalog databases for rman backup.
- Maintaining sound backup and recovery policies and procedures using RMAN. Monitoring the scheduled backup procedures for daily basis using crontab.
- Database refreshes using RMAN cloning. Extensively using RMAN for all types of recovery/backup scenarios.
- Well versed with Switchover and Failover of databases in Dataguard environment. Both manually and via DataGuard Broker.
- Worked on TDE encryption for security.
- Wrote .ksh script for automation purpose. Eg, Rman Backup report, DataGard Status report, Scheduled Jobs in oracle.
Environment: Oracle 7, 10g, 11g, 12c, SQL, PL/SQL, AIX/Linux/Windows, RMAN, Oracle Enterprise Manager (OEM), Web logic, Oracle Application Server, Webcache Server.
Confidential, Duncanville, TX
Senior Oracle DBA
Responsibilities:
- Provided database support for production, two-node RAC and DG (physical standby) instances running on AIX and Linux, Periodically7 tested our DR strategy by doing switchover and failover exercises.
- Used RMAN and Datapump for backup, restore, recovery and refreshes Periodically leveraged oracle 11g’s ‘Duplicate from Active Database’ feature to clone Dev, Test/QA DB from production used Grid control and Toad heavily for administration, monitoring, scheduling and troubleshooting.
- Provides knowledge transfer to Government personnel and others as directed on Oracle database administration, stored procedures, packages and triggers
- Develops/Maintains Oracle database backup and recovery processes using tools such as Oracle Recovery Manager (RMAN), SQL-BackTrack.
- Good knowledge of SQL with Performance Tuning skills
- Experience implementing Oracle Real Application Clusters and Oracle Data Guard for high availability, data protection, and disaster recovery
- Supports real-time monitoring utilizing Oracle Enterprise Manager (OEM) for all Oracle databases. Uses Oracle Enterprise Manager (OEM) and/or other vendor software to monitor, measure, and maintain database and application server integrity through active analysis of performance measures
- Supports data integration and replication in heterogeneous IT environments utilizing Materialized Views
- Emphasis on implementing, planning, execution and delivery of many environments involving complex Oracle databases in support of critical and non-critical applications
Environment: Oracle 7, 10g, 11g, 12c, SQL, PL/SQL, AIX/Linux/Windows, RMAN, Oracle Enterprise Manager (OEM), Web logic, Oracle Application Server, Webcache Server.
Confidential, Dallas, TX
Senior Oracle DBA/ WebLogic
Responsibilities:
- Responsible for database infrastructures, strategies, enterprise solutions, administrations.
- Led effort on consolidating small departmental databases into enterprise database thereby
- Saving licensing cost by $100K/year.
- Database upgradation to its higher release like 10.2g to 11.1g and 11.1g to 11.2g, 11g to 12c.
- Defined and implemented HA/DR solutions using Oracle Data Guard, Oracle RAC for the
- Company’s mission critical applications to maintain business continuity.
- Looking into day-to-day activities of Production database, monitoring its growth and performance.
- Successfully worked with Auditors and implemented PCI and SOX defined rules.
- Support PCI/SOX overflow activities. Responsible for tracking remediation activities on security vulnerabilities or risks.
- Successfully developed and implemented database auditing using Oracle LDAP and
- Windows Active Directories. Implemented Transparent Data Encryption and SQL net encryption.
- Worked on Backup and Recovery strategies, improve database functionality, consolidate databases, and provide periodic health check to ensure your system is operating at maximum efficiency.
- Extensive work on Service Oriented Middleware deployments that support complex and essential web services across the enterprise, including shared and dedicated, production and non-production environments.
- Experience in installation, implementation, maintenance, and operations of middleware and related infrastructure components.
- Upgrade and support middle tier software, Oracle Application Server 10.1 and 10.2 to Web logic 10g/ 12c, Apex 3/4.
- Experience with Java application support and troubleshooting.
- Strong understanding in PL/SQL and SQL and able to write SQL query.
- Actively participate in developing Shell scripts to automate and monitor.
- L1+ work for MySQL and SQL server.
- Working knowledge of ticketing tool (HP Service Manager/Remedy/ITSM7)
Environment: Oracle 10g, 11g, 12c, SQL, PL/SQL, Linux/Windows, RMAN, Oracle Enterprise Manager (OEM), SQL server, MySQL, Web logic, Oracle Application Server, Apex, Webcache Server, F5, Tripwire, PRTG/Nagios.
Confidential, Milwaukee, WI
Senior Oracle DBA
Responsibilities:
- Involved as DBA for knowledge transfer activity
- Database support (Monitoring, Administration, and Tunings & Backup) in Oracle 9i, 10g, 11g, 12c
- Database up gradation to its higher release like 10.2g to 11.1g and 11.1g to 11.2g
- Responsible for implementation and management of Datagaurd (Logical database)
- Remote database administration of the instances
- Looking into day-to-day activities of production database, monitoring its growth and performance
- Experience on working on the DB’s hosted on Clustered Servers using Veritas
- Linux crontab configuration to automate the shell scripts
- Extensively worked on DBMS JOB and DBMS SCHEDULER
- Working on DR Drills
- Migration of codes from Oracle Database to Postgres
- Perform database software installation/patching/ up gradation to development, test and production servers
- Management of Oracle Instance, physical structure of the database like data files, redolog files, control files (mirroring of the control file) and storage management
- Creating users with restricted access, profiles and attaching them with users
- L1+ work for MySQL, Postgres and SQL Server
- Working knowledge of ticketing tool (HP Service Manager)
Environment: Oracle 8i, 9i, 10g, 11g, SQL, PL/SQL, Linux/Windows, RMAN, Oracle Enterprise Manager (OEM), SQL server, Postgres
Confidential, Austin, TX
Oracle DBA
Responsibilities:
- Extensively worked on datacenter migration and database upgrade
- Migrated database of different release from Solaris to Linux
- Database up gradation to its higher release like 10.2g to 11.1g and 11.1g to 11.2g
- Setting up Grid control 11gr2 infrastructure to monitor databases.
- Basic Unix Shell Scripting Knowledge(Actively participate in developing Shell scripts to automate
- The DBA processes for our Client for Service Improvement)
- Working on DR drill (RMAN and NetBackup tool)
- RMAN extensively worked on backup and restore strategies. Implemented backup and recovery of Databases using Recovery Manager, hot backups, cold backups and logical backups
- Create backup and verification policies
- Database support (Monitoring, Administration, and Tunings & Backup) in oracle 9i, 10g, 11g
- Apex application upgrade and configuration from release 3 to 4
- Working knowledge on Data guard (Transferring log files from primary to standby database and manually applying the logs at standby side etc.)
- Analysing the segment fragmentation and re-organizing tables and partition tables
- Performing Archiving and purging activity as per the policy
- Creating table partitions, monthly, daily & yearly
- Perform database software installation/patching/up gradation to development, test and production servers. Having knowledge in RAC Architecture, Installation, and administration
- Configuring ASM and creation of ASM database
- Configuration of Heterogeneous services and BI Tools for connection with Oracle Database
- Interacting with the oracle support (Oracle Meta-link) and open the Service Request (SR) in case of major issues
- Raising TAR and coordinating with Oracle Support in resolving Oracle issues
- Creating users with restricted access, profiles and attaching them with users
- Monitoring the table growth, database growth, current users, and system resource usage and so on
- Configured listener.ora and tnsnames.ora as on when required for clients
- Generate Root Cause Analysis (RCA)
- Linux Redhat 4, 5 OS configuration and installation
- SQL script, cronjobs, ksh scripting, dbms jobs/dbms scheduler job setup
- Monitoring tools setup. Nagios/EM7
- HSODBC, Apex install/upgrades, midtier application setup,
- Uploading/transferring by the help of SQLLoader, WinSCP, PSCP and other utilities
- Worked on ITSM ticketing tool team (ticket handling) and change management, also upgrade of remedy 25 TB plus database migration via SAN copy.
Environment: Oracle 10g/11gR2, SQL PLUS, PL/SQL, Solaris, Linux/ UNIX, Oracle Enterprise Manager (OEM), Nagios, EM7, Weblogic.
Confidential
Oracle DBA
Responsibilities:
- Responsible for both manage and support all Production, Development and Staging Instances of Oracle Version 8i, 9i and 10g.
- Maintaining databases in 24x7 Production environment
- Monitor and troubleshot various database remotely
- Also refreshing Database as per the requirements of the clients (CLONING, Export, Import, Datapump)
- Ensuring successful & periodical Backup & Restoration
- Develop, Implement and administer database policies and procedures
- Writing scripts for informing the DBA’s regarding the status, performance and Space Management of the Database
- Provide 1st level technical support and assistance to all database end-users
- Install new versions of database software and perform maintenance functions of the database
- Reorganization of tables, indexes, table spaces, data files, redo log files, and control file as per the requirements of the databases performance and space management requirements of the Servers
- Database Backup Management using exports or online backups/Data Pump
- Sox Remediation.
- Monitoring the database for CPU utilization and killing unwanted user processes
- Plan for system growth and monitor capacity usage for new hardware or software requirements and communicate these capacity requirements to management
- Administrating Database in various platforms like WINNT 4.0 / 2000, SUN SOLARIS, and HP-UX & Linux
- Create new Database, perform regular backup’s for all the database and main the DB’s
- Working knowledge of ITSM ticketing tool (Remedy 6)
Environment: Oracle 9i/10g, SQL PLUS, Unix/windows, Oracle Enterprise Manager, RMAN