Senior Oracle Dba Resume
Boston, MA
SUMMARY
- 11+ years of experience as a Database Administrator providing 24x7 Support for critical Oracle Production Databases.
- Comfortable working in dynamic enterprise environments consisting of over 1000+ Oracle databases.
- Strong experience in Managing and Administering Oracle Database Appliance machines like performance tuning, patching and contacting Oracle support for troubleshooting cell issues.
- Thorough understanding of Oracle EXADATA architecture.
- Worked on EXADATA machines where Oracle RAC, Dataguard and standalone databases are running.
- Used Oracle ASM/ACFS for GOLDENGATE to minimize downtime by reducing dependency on storage teams.
- Hands on experience in MS SQL Server 2008 database administration.
- Hands on experience in Cloud services managing databases on EC2 instances.
- Hands on experience in Amazon Cloud services like EC2, DBMS, Creating storage and database Installations.
- Hands on experience in creating different accounts and assigning ROLES to them and managing users under Identity Access Management (IAM) in Amazon Cloud.
- Hands on Experience in GRID Control 12c (OEM) and deploying agents and troubleshooting agent issues.
- Experience in Migrating databases from Oracle Internet Directory to Oracle Unified Directory.
- Hands on experience in Implementing Oracle Unified Directory (12c OUD) to use as Directory server to manage all database users centrally.
- Experience in Migrating database from oracle 11gR2 RAC to oracle 12cR1.
- Strong experience in preparing Installation Qualifications which will be useful to other DBA’s to perform the activities using this document.
- Strong Experience in Implementing and troubleshooting GoldenGate.
- Experience in Uni - Directional setup of GoldenGate.
- Handled various issues and fixed it in GoldenGate like abending of EXTRACT & REPLICAT processes.
- DB Upgrade experience from 8i, 9i to 11g and 12c versions.
- Used Veridata tool to identify any data mismatch between source and target databases when using GoldenGate.
- Strong experience in Performance tuning of database and SQL code.
- Utilized tools like SQLT, Tracing, AWR &ADDM reports to tune instance level and SQL code.
- Used SQL Tuning Advisor to get oracle suggestions on poor performing queries and understand them before implementing the Profiles.
- Strong experience in Migration of databases from HPUX to Solaris X-86 and X-64 bit OS.
- Hands on experience in all flavors of UNIX and Windows (Solaris x-86, x-64) in administering oracle databases.
- Hands on in data encryption of critical data in production databases.
- Used to generate EXPLAIN Plan and analyze them for bad queries.
- Experience in managing the production databases where the number of application user’s connection to database is around 10000.
- Working experience with multi terabyte production databases using Oracle 9i/10g/11g/12c RAC 3+ Nodes.
- Having hands on experience in tuning the RAC database.
- Experience in Implementing Physical standby & Maintenance.
- Experience in setting up and maintaining of Grid control for both stand alone and RAC databases.
- Experience in tuning the backups of database to disk and tape using RMAN.
- Performed Recovery Procedures including block level recovery.
TECHNICAL SKILLS
Databases: Oracle 8i/9i/10g/11g/12c, SQL Server 2012/2008R2/2008/2005, MySQL, EXADATA x3-8
Operating Systems: HP-UX 10.x, 11.x itanium, TRU64, Sun Solaris 2.5, 2.6, 8, 9, 10, AIX 5.1, 5.2, 5.3, Red Hat Linux RHEL 2.1, 3.x, 4.x, and Windows 2005.
Languages: SQL, PL/SQL, UNIX Shell, Perl, JAVA.
Oracle Tools: RMAN, OAM, OEM, GRID Control, GoldenGate, DB Vault, TOAD, SQL*Loader, ASM, TNS, OID, OUD, ACFS/ASM
Hardware/Storage: SUN E4500, SUN E10k, HP9000, RS6000, EMC, BCV, VERITAS Net Backup, Tivoli Storage Manager (TSM), NetApp Filers (Snap Mirror), AUTOSYS
Cloud Services: Amazon Web Services (AWS)
PROFESSIONAL EXPERIENCE
Confidential
Senior Oracle DBA
Responsibilities:
- Manage oracle databases which maintain critical and sensitive data
- Implement Oracle Unified Directory 12c so that users in all databases can be managed centrally in OUD which will simplify the user management.
- Use Oracle Data Masking through Oracle Enterprise Manager (OEM) to mask PII data.
- Supported On call 24x7 to address any production outages or performance issues.
- Setup 12c RAC database and test application connectivity and fix any issues.
- Support development teams in tuning the PL/SQL code if facing any performance issues during deployments.
- Setup Dataguard to maintain high availability of databases during datacenter shutdown.
- Hands on experience in tuning databases based on the application requirement.
- Generate oracle AWR/ADDM reports to understand problematic SQL and fix them.
- Guide other team members in installations and performance issues.
Environment: Oracle Enterprise Linux, Oracle 12c/11g RAC Databases, TOAD, JDeveloper, Oracle Grid Control, Data Guard, ASM, RMAN, SAN, ODA 5.x, Data Masking, Oracle Unified Directory
Confidential
Senior Oracle DBA
Responsibilities:
- Worked Majorly in Warehouse environment which are 200+ TB in size.
- Worked in Oracle Database Appliance (ODA boxes) which has 12c running.
- Worked on performance issues of SQL related queries.
- Worked with developments teams in deploying the scrips and making suggestions to the queries.
- Worked in setting up Golden Gate Uni-Directional.
- Experience in troubleshooting replication and Extract issues using Logdump and logs.
- Had setup Oracle 12c Dataguard in RAC environment.
- Involved in troubleshooting of dataguard issues.
- Performed restoration of standby databases when it is out of SYNC from Primary using RMAN incremental backup.
- Worked on Data Masking using Delphix tool.
- Created Virtual environments of Production databases using Delphix.
- Supported On call 24x7.
Environment: Oracle Enterprise Linux, WINDOWS 2005, Oracle 12c/11g/10g, 9i/10g/11g/12c RAC Databases, MS SQL Server 2012/2008, Data Ware House, TOAD, JDeveloper, Oracle Grid Control, Data Guard, GoldenGate, ASM, RMAN, SAN, ODA 5.x, Delphix tool (5.1.9).
Confidential
Oracle DBA
Responsibilities:
- Worked in Engineering team as L4 DBA where I should mentor L3 & L2 DBA’s in installations of RAC & NON-RAC databases of 11g and 12c versions.
- Handled project of migrating all Databases from Oracle Internet Directory (OID) to Oracle Unified Directory (OUD).
- Prepared Installation Qualification documents so that L3 & L2 level DBA’s can follow the document for Installation of RAC and Standalone databases.
- Upgraded Oracle 11gR2 RAC database to 12cR1 RAC.
- Hands on experience in data encryption using Transparent Data Encryption and also restricting access to data using Data Vault.
- Setup Transparent Data Encryption for critical data in production databases so that it is masked for end users.
- Involved in troubleshooting of dataguard issues.
- Performed restoration of standby databases when it is out of SYNC from Primary using RMAN incremental backup.
- Handled performance issues at database level and SQL side also.
- Used to analyze AWR &ADDM reports and implement them to optimize the queries and database performance.
- Managed databases on Amazon Cloud services by creating EC2 instances.
- Worked on EXADATA X3 quarter rack machines.
- Worked on performance tuning and patching of EXADATA machine cells.
Environment: SUN SOLARIS SPARC 9/10 Oracle Enterprise Linux, WINDOWS 2005, Oracle 12c/11g/10g, 9i/10g/11g RAC Databases, MS SQL Server 2012/2008, Data Ware House, TOAD, JDeveloper, Oracle Grid Control, Data Guard, GoldenGate, ASM, RMAN, SAN, EXADATA X3-8
Confidential
Senior Database Specialist/ Oracle DBA
Responsibilities:
- Handled set of applications completely from installations, deployments and performance tuning issues.
- Setup 11gR2 RAC with 10g and 11g database.
- Hands on experience in data encryption using TDE and Vault.
- Setup Transparent Data Encryption for critical data in production databases so that it is masked for end users.
- Upgraded databases from 11g to 12c version in production environments.
- Involved in troubleshooting of dataguard issues.
- Performed restoration of standby databases when it is out of SYNC from Primary using RMAN incremental backup.
- Setup GoldenGate unidirectional within Oracle databases.
- Handled Goldengate abending issues in RAC & NON-RAC databases.
- Handled performance issues at database level and SQL side also.
- Used to analyze AWR &ADDM reports and implement them to optimize the queries and database performance.
- Supported on call on 24x7 basis.
- Experience on batch processing jobs like AUTOSYS to schedule and maintain oracle related jobs.
- Utilized Oracle SQL Plan Stability concepts and tuned queries.
- Provide expect Oracle technical input and support for database upgrade projects and implement these game plans for the upgrades
- Work closely with development DBA teams on trouble-shooting SQL issues impacting database performance and uptime SLAs
- Design and implement High Availability (HA) solutions using Real Application Clusters (RAC) using Automatic Storage Manager (ASM).
Environment: SUN SOLARIS SPARC 9/10 Oracle Enterprise Linux, WINDOWS 2005, Oracle 12c/11g/10g, 9i/10g/11g RAC Databases, MS SQL Server 2012/2008, Data Ware House, TOAD, JDeveloper, Oracle Grid Control, Data Guard, GoldenGate, ASM, RMAN, SAN, BMC, ASM/ACFS.
Confidential
DBA Team Lead/Oracle
Responsibilities:
- Worked as a Lead of team 6 members who are Oracle and SQL Server DBA’s.
- Managed database inventory for the client to provide new databases that came up during the year.
- Wrote shell scripts for a newly created database.
- Deployed 11gR2 database to Production.
- Experience in setting up GoldenGate 11g.
- Handled various GoldenGate issues after setting up.
- Performed Maintenance activities like defragmentation of tables and rebuilding indexes.
- Performed restoration of critical databases to staging databases using RMAN.
- Handled performance issues at database level and SQL side also.
- Used to analyze AWR &ADDM reports and implement them to optimize the queries and database performance.
- Used to TRACE sessions using SQL TRACE and understand the execution plan of SQL’s.
- Utilized Oracle SQL Plan Stability concepts and tuned queries.
- Worked on SQL Server 2008 databases and did administration work.
- Manage all primary on-call DBA activities such as checking on tablespace problems, checking for fragmentation of tables and indexes.
- Design, and implement database backup/restore infrastructure using Oracle RMAN and Netbackup tools.
- Applied both regular and critical patches (CPU & PSU) related to the production databases.
Environment: SUN SOLARIS SPARC 9/10 Oracle Enterprise Linux, WINDOWS 2005, Oracle 11g/10g, 9i/10g/11g RAC Databases, MS SQL Server 2008, Data Ware House, TOAD, JDeveloper
Confidential, Boston, MA
SR. DATABASE ADMINISTRATOR
Responsibilities:
- Performed migration from oracle 9i to 10g.
- Experience in using DBUA utility to perform migration.
- Performed migration from 10 to 11g in RAC environment.
- Gained experience in working on Storage Area Network (SAN) by installing stand alone and RAC databases.
- Supported ORACLE 9i/10g RAC 3+ node Databases (Raw devices & ASM); handled migration/upgrades of databases from 10g to 11g manually and with DBCA.
- Oracle database migration from American character set to UTF8
- Oracle RAC software Upgrades to 10g and RAC migration from one server to other.
- Data migration (total Oracle 9i RAC DB restores to different machine).
- Performed Backup/Recovery using RMAN and established testing standards utilizing the advantages of 10g Flashback.
- Performed daily backups of database using RMAN and also used the new features of RMAN to apply incremental backups to full backup to minimize recovery time.
Environment: HP-UX 11i itanium server, Windows 2005, HP TRU64 4.0/5.0, SUN SOLARIS 10, Oracle 9i, 10g, 11g RAC Databases, Data Ware House, TOAD, JDeveloper, Oracle Grid Control, EMC.
Confidential, CA
DATABASE ADMINISTRATOR
Responsibilities:
- Installed, configured and maintained ORACLE 10g Real Application Cluster (RAC).
- Set up and maintained oracle disaster recovery site using DataGuard.
- Performed user and security administration activities, such as enrolling users, granting privileges to users, and maintaining system security.
- Utilized RMAN for backup and recovery strategy.
- Completed export and import of different databases using Oracle Export / Import utilities.
- Table fragmentation tuning, partitioning the large table by date.
- Installed Grid Control along with setting up agents.
- Installed Oracle database 10g, and upgraded Oracle 9i to 10g.
Environment: HP-UX itanium, AIX 5.2, Sun Solaris 9, Red Hat Linux AS4, Oracle 9i/10g/10g RAC, SQL Back-Track, RMAN, Data Guard
Confidential, Redwood City, CA
DATABASE ADMINISTRATOR/Oracle DBA
Responsibilities:
- Monitored applications at the database level and identified problem areas and hot spots, isolated issues and recommended solutions.
- Created disk farm usage report and the data growth pattern reports for management groups.
- Configured Sqlnet, Net8 and Oracle Net services connect failover and application failover (TAF) for RAC 2+ nodes, load balancing, Names server and ODBC.
- Performed physical backup using RMAN and logical database backup using export utility.
- Monitored and tuned production environment when volume of data impacted performance, utilizing OEM SQL Analyze, OEM Top Sessions, OEM Performance Manager, Stats pack, SQL Trace, TKPROF etc.
Environment: Sun Solaris, Red Hat Linux and Windows 2000/XP, Oracle 8i/9i/10g