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Sr. Oracle Dba Resume

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O Fallon, MO

SUMMARY:

  • An astute Oracle professional, self - motivated with around 6+ years IT experience as an Oracle DBA (versions 12c/11g/10g/9i) in Oracle products, both production and development environments spanning several industries: production, health care, financial services, and high tech.
  • Installation, upgrade, maintenance, administration of multi-terabyte standalone and RAC on multiple platforms like IBM-AIX, Sun-Solaris, UNIX, Linux, Windows.
  • Hands on experience in test, development databases, production support and day-to-day activity to ensure zero alert thresholds is met 24x7.
  • Extensive knowledge and experience on Data Warehouse using ETL tools like Informatica.
  • Experience with installation of Grid Infrastructure for ASM, RAC. Very good understanding of GpnP (Grid Plug n Play).
  • Administered Oracle clusterware and resources on 11g and 12c using CRSCTL/SRVCTL.
  • Migrated OS file system storage to ASM with minimal downtime and administered ASM disk groups and instance.
  • Server side and Client-side fault tolerance achieved by configuring SERVICES and TAF (Transparent Application Failover).
  • Proactively monitored and diagnosed symptoms using OEM (Enterprise Manager) to significantly increase the probability of success of production db and application.
  • Experience in Performance Tuning (I/O, Memory & SQL Tuning etc) by using tools/utilities ESTAT/BSTAT, STATPACK, End-user tuning and troubleshooting using various tools like EXPLAIN PLAN, AUTOTRACE, SQL TRACE, TKPROF, AWR, ADDM, ASH, v$ performance views.
  • Knowledge of Shareplex for Materialized Views, Good experience with Data Modeling to translate logical data elements into the physical database design.
  • Experience in implementation of enterprise databases on enterprise Storage Solutions using Storage Area Networks (SAN) /Network Attached Storage (NAS)
  • Experience with Toad Data Modeler using Erwin.
  • Build complex entity relationship models - both logical and physical database design.
  • Experience in resolving complex restore and recovery issues using RMAN.
  • Experience in working on Remedy (Incident management / Change management) BMC Patrol.
  • Experience working with Application development team in Release and Deployment Management processes.
  • Experience in UNIX Shell Scripting for automating the DBA tasks like User maintenance, Performance Monitoring of CPU, Disk and Memory usage, and File system monitoring.
  • Good Experience in Hot/Cold Backups, and Cloning of Databases.
  • Knowledge of Business Continuity Volume(BCV) for database backups and refresh
  • Extensive knowledge on database backup/recovery strategy (RMAN), Import/Export & Datapump, Capacity Planning, Replication (Streams) standby databases, Oracle configuration management, Dataguard, database cloning, refresh and patch management and Oracle Exadata Database Machine.
  • Experience in Database Security and Auditing.
  • Extensive knowledge in Korn shell and Perl scripting.

TECHNICAL SKILLS:

  • Databases: Oracle 12c, 11g, 10g, 9i, 8i, 8.x, 7.x, 6.0 MS SQL Server 2005 and 2008
  • Languages: C, C++, Java and J2EE
  • Application server: Oracle 9iAS Release 2, Websphere MQ, Web logic, iPlanet
  • Tools and Utilities: OEM 2.2, Forms6i, Reports6i, SQL*Loader, Oracle Workflow, Oracle PL/SQL, Designer 6i, Developer/2000, Discoverer 3.1(Administration & User) Visual Basic 5.0
  • ERP Applications & Tools: Oracle Applications - 11i, 11.0.3, 12.0.6, 12.1.1
  • ETL Tools: Informatica (Power Mart & Power Center)
  • Decision Support Tools: Business Objects, Brio, Web Intelligence and Apache
  • Web Technologies: Weblogic, IBM Websphere MQ
  • Fusion Middleware: IDM, OIM, OAM, SOA, OBIEE and SSO
  • Replication: Golden Gate, Streams and Oracle Advanced Replication
  • Hardware: Sun Fire V880, Sun Ultra Enterprise 3500, Sun Ultra Enterprise 250/450, Acer Altros19000 DDE Org Supermax RISC Plus IBM, Dell 6600, Compaq Proliants, Compaq DL580, IBM Netfinity
  • Operating Systems: Sun SPARC Solaris 2.x, Linux Red Hat Advanced server, HP-UNIX, IBM AIX Unix Windows 2000 advanced server, Windows XP, Windows 2003 and Windows 2008

PROFESSIONAL EXPERIENCE:

Confidential, O’Fallon, MO

Sr. Oracle DBA

Responsibilities

  • Install, Setup and Configure Oracle Clusterware and database software.
  • Performed upgrades to Oracle 11g from earlier versions of Oracle.
  • Successfully upgraded databases to version 11.2.0.4 and applied latest PSU patches.
  • Performed rolling Grid Infrastructure upgrade from 11.2.0.4 to 12.1.0.2
  • Implement and enforce database security to meet PCI requirements.
  • Plan and implement backup, recovery solution using RMAN.
  • Plan and develop contingency solutions for supported databases.
  • Perform ASM Installation, Migration & Configuration as per the requirements.
  • Migration of Non-ASM standalone database to One Node RAC.
  • Migration of Databases to Oracle Exadata machines using datapump import.
  • Creation and setup of physical standby databases and oracle active Dataguard on exadata machines.
  • Support for logical standby database.
  • Manage RAC environment for Day to Day Database administrator, performance tuning.
  • Securing stored data using oracle transparent data encryption by installing TDE wallet and creating encrypted tablespaces and storing sensitive data in encrypted tablespaces.
  • Successfully performed Disaster recovery exercises for highest availability using DataGuard broker (DGMGRL).
  • Performed database rolling upgrades and PSU patching.
  • Provide the support for day to day database maintenance activities; planning & scheduling the changes.
  • Enforce and maintain database audit and security standards for PCI standards.
  • Assist and implement data model design changes in databases as per application projects and business requirements.
  • Develop and implement high availability, scalability and disaster recovery solutions dataguard, replication, streaming & golden gate as per the application's business needs to meet the required SLAs.

Environment: Oracle 12c/11g 3-node RAC, IBM AIX, CRSCTL, SRVCTL, RMAN, ASM, Stats Pack, Physical Standby db, Data Guard Broker, OEM Grid Control, Data pump, SQL Developer/TOAD, SQL* Plus, Putty, SSH

Confidential, Jersey City, NJ

Role: Oracle DBA

Responsibilities

  • Managed database on 11g R2 RAC.
  • Wrote PLSQL jobs and scheduled via oracle scheduler to run daily.
  • Excellent knowledge of 11g RAC srvctl, crsctl, ocrdump, ocrcheck and ocrconfig utilities
  • Performed converting single node instance to RAC and Adding instance to the existing RAC
  • Administered GI resources like ASM, SCAN Listener, node listener, OCR, Vote files using CRSCTL and SRVCTL utility.
  • Successfully added nodes to the existing RAC cluster by extending GI and Oracle binaries.
  • Troubleshooted Node eviction (split brain syndrome) issue due to flooded interconnect traffic.
  • High availability and load balancing achieved with Services which was fully integrated with 11g/12c Grid Infrastructure.
  • Perform Database monitoring, Tuning RAC.
  • Client-side fault tolerance achieved by configuring TAF (Transparent Application Failover) in RAC as well as Data Guard env.
  • Upgraded more than 15 db from 10.2.0.1 to 11.2.0.1 and then 11.2.0.1 to 11.2.0.2 including patchset updates using opatch.
  • Wrote procedures/packages to load data using new SQL features like copy.
  • Effective use of tuning packs like ADDM, AWR, ASH, Tuning Advisors to troubleshoot resource-intensive SQL, enqueues, locks.
  • 50% improved Performance of fetching LOB data by creating partitions. Data footprint reduced by purging older partitions to lowered operational cost.
  • Data migration using Data Pump export/import to bring historical data from application so to analyze the growth of db over a period.

Environment: Oracle 12c/11g 3-node RAC, OEL 5.8, IBM AIX, Grid Infrastructure, CRSCTL, SRVCTL, RMAN, ASM, Physical Standby db, Data Guard Broker, Flashback, OEM Grid Control, Data pump, TOAD, SQL* Plus, Putty, SSH

Confidential, Fort Lauderdale, FL 

Oracle DBA/SQL Server DBA

Responsibilities

  • Installation, up gradation and Maintenances of Oracle Databases on Linux & Windows platforms.
  • Used Shell Scripting for automation of job Scripts, for Startup and Shutdown, Health Check of Databases, Analyzing of Tables and Rebuilding of Indexes.
  • Proactively monitored the database and database access, and maintained the database security.
  • Extensively worked under UNIX environment to provide DBA support.
  • Installed, managed and administrated the MS SQL Server 2012/08R2/05 Production and Non-Production Servers.
  • Worked on Client/Server tools like SQL Server Management studio (2008), SQL Server Enterprise Manager (2008) and Query Analyzer to Administer SQL Server.
  • Setting up and Monitored transactional replication, Database mirroring on Production, QA and Development servers.
  • Perform production system problem analysis and recommend corrective measures in a timely manner.
  • Backup of database Logical and Physical (hot and cold) procedures and also using RMAN.
  • Perform database monitoring, capacity planning and performance tuning.
  • Scripted jobs to refresh tables/schemas and databases as well.
  • Generating AWR reports to deal with performance issue.
  • Written scripts to monitor tablespaces, file systems.

Environment: Oracle 11g, 10g, MS SQL Server 2012/2008R2/2005, Query Analyser, Windows Server 2008, RHEL Advanced Server/Enterprise 2.1/3.0, OEM(Grid-Control), RMAN, AWR, ADDM, PL/SQL, SQL Developer, WinSCP.

Confidential, Holland, MI

Jr. Oracle DBA

Responsibilities

  • Installation, configuration and maintenance of Oracle 10g/11g databases.
  • Installation, configuration and maintenance of 11.2.0.3 Oracle Data Guard as a high availability solution.
  • Installing and configuring physical standby database using RMAN duplicate from active database on RHEL 6.3.
  • Possess strong RHEL and Solaris skills.
  • Applying one off patches using OPATCH utility.
  • Creating and managing application schemas with appropriate table spaces and Indexes.
  • Rebuilding Indexes and gather statistics on tables on different databases on a regular basis to gain database performance using DBMS STATS package
  • Manage users, privileges and profiles, schemas using Oracle Grid Manager, Oracle Enterprise Manager (OEM) and SQL.
  • Refreshing application schemas using data pump export/import
  • Tuning the Databases for optimization using AWR, ASH, ADDM, STATSPACK, Explain Plans and TKPROF, Estimating Table & Index Size.
  • Used RMAN to cloned and duplicated databases.
  • Migrated databases from Windows to Linux using transportable tablespaces.
  • Oracle 10g & 11g RAC, ASM, Data Guard (Physical, Logical standby), Enterprise Manager (EM) Grid Control, RMAN, Installation, Upgrades, Migrations, Performance Tuning Recent Experience.
  • Creating and managing application schemas with appropriate table spaces and Indexes,
  • Create public and private database links.

Environment: Oracle 11g/10g, SUSE 9.x, HP-UX, OEM grid control, TOAD, Data Pump, RMAN, AWR, ASM

Confidential,

Technical Analyst

Responsibilities

  • Involved in gathering requirement, Analysis, Design.
  • Created database objects including tables, views, synonyms, sequences, constraints, indexes.
  • Created Pl/SQL Stored Procedures, Functions, Packages, Triggers, Cursors.
  • Prepared migration documents & other documentations. Monitored db performance via STATSPACK.
  • Participated in design reviews for upcoming application enhancements.
  • Performed data extracts/loads in the testing environment using SQL*Loader.
  • Assisted developers to troubleshoot SQL and PL/SQL code and increase the efficiency of execution.
  • Created daily, weekly, and monthly DBA checklists for each environment.
  • Documented database/server configuration for production, test, and development databases.
  • Setup Crontab jobs to automate the routine tasks.

Environment: Oracle 9i, SQL*Plus, Pl/SQL, TOAD, SQL*Loader, SQL*PLUS, UNIX, VSS, OEM, Stats pack, QC

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