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Senior Oracle Dba Resume

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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

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