Sr.oracle Dba Resume
New York, NY
SUMMARY:
A senior database administrator with 14+ years of experience in multiple industries including banking/hedge fund databases. Experienced in managing very large databases of Confidential Companies.
TECHNICAL SKILLS:
Operating Systems: AIX 5.3/6, Linux, SOLARIS 5.8, WIN NT/2000, UNIX, MS - DOS.
Languages: PL/SQL, JAVA, HTML, Assembly language, Shell script
RDBMS: Oracle 12c,11g, 10g, 9i, 8i, MS Access 97, 2000.
SqlServer Tools: Replication
Backup & Recovery: High Availability
Health Analysis: Disaster Recovery
Db Administration: Documentations
Products Management: Upgrade & Config
Data Loading: Performance Tuning
Cluster Administration: Security
ORACLE Confidential: RMAN, Datapump & Legato Networker(MML)
Confidential, ORACLE Confidential:
Statspack, AWR: Data Guard
Toad, SqlNavigator, putty, Oracle Grid Control: MS-OFFICE products
OEM Grid Control: DBCA, DBUA, Opatch
SQL Loader: SQL Trace, Tkprof, ADDM, AWR, ASH, SQLT
Srvctl, asmcmd, crsctl, crs stat, ocrconfig, ocrcheck, ocrdump, vipca, netca: TDE, OLS
PROFESSIONAL EXPERIENCE:
Confidential, New York, NY
Sr.Oracle DBA
Responsibilities:
- A production/Engineering dba with extensive migration and upgrade experience supporting quantitative databases.
- Supporting trading applications like EZE and HERMES.
- Provide support to in house reporting and Cognos.
- Extensive experience in planning & developing new processes which includes installation, migration, upgrades and patching.
- End-to-end datawarehouse deployments which includes data modeling, designing and normalization.
- Tune DW using different techniques like partitioning, introducing new indexes, restructuring sql, materialized views, hints and sql profiles.
- Refresh environments using SAN based ASM copy.
- Develop new shell scripts to monitor and perform daily purges.
Confidential, New York, NY
Sr. Oracle DBA
Responsibilities:
- Established/tested a migration process of a multi-terabyte datawarehouse from 11g to 12c using transportable tablespaces with incremental backups using new -features of 12c in a multi-tenant environment.
- Experience in installing 12c with container and pluggable databases.
- Managed Shareplex Replication.
- Implemented Transparent Data Encryption for database security.
- Implemented methodologies to secure database environments using roles/auditing and manage privileges accordingly.
- Secured data using data masking in test environments.
- Tuning databases both from physical and logical standpoint.
- Work with developers in identifying and optimizing problematic queries.
- Implement partitioning and indexes to optimize performance.
- Capacity planning for new deployments and migrations.
- Involved in a DW project implementing star schema and snowflake design.
- Involved in full regression testing using Real Application Testing for configuration/upgrades in production environments.
- Involved in a major upgrade and migration project of 10TB warehouse from a non- Confidential Oracle 10g on Solaris to Oracle 11gR2 Confidential on RHEL. Due to different endians, transportable tablespaces were used.
- Installation of Oracle Grid Infrastructure 11gR2 on RHEL.
- Installation of Confidential software on RHEL.
- ASM setup and maintenance using asmcd tool.
- Creation/Addition of Diskgroups and addition/removal of ASM disks with Fast Rebalance.
- Implement/Managed Dataguard with broker in both Confidential and standalone environments using different protection modes.
- Conversion of Non-ASM databases to ASM using RMAN.
- Performance tuning using AWR and ADDM reports.
- Implemented Confidential between oracle databases to replicate selected schemas.
- Used Confidential for Confidential in the migration project for zero downtime.
- Maintain and troubleshoot Confidential issues.
- Sqlserver installation.
- Setup Test environments.
- Database backups using management studio.
- Attaching and detaching databases.
- Apply Service Packs.
- Create users and assign permissions based on the level of access requested.
- Manage database backups and apply appropriate recovery model.
- Database restoration using backup pieces to a new location or to a new name.
- Involved in multiple DR instances i.e. loss of Master DB etc.
- Provide logical structural advice to improve performance.
Confidential, Commack, NY
Sr. Oracle DBA
Responsibilities:
- Involved in an upgrade and migration project of 2TB warehouse from Oracle 9i.
- Installation of Confidential software on RHEL.
- Worked with engineering team to deploy new softwares and push patches.
- Followed SOPs and guidelines given by database engineers to execute tasks.
- Troubleshoot dataguard in scenarios like loss of datafile/archivelog etc.
- Involved in extensive documentations of projects.
- Incidents management using ticketing system (Remedy).
Confidential, New York, NY
Sr. Oracle DBA
Responsibilities:
- A lead production dba managing production and development/test databases.
- Installation/Cloning of Oracle 9i, 10g, 11g software on AIX/Unix servers.
- Installation of Oracle Grid control.
- Test database refreshes using datapump and Rman duplicate.
- Resolving tickets generated by the ticketing center.
- Prepare and document disaster recovery plans.
- Involved in a Disaster Recovery project which included planning, implementation and a complete mock disaster exercise.
- Migrated production environments from Oracle 9i to 10g and then 10g to 11g.
- RMAN duplicate of production to test databases using nfs mount.
- Involved in massive policy renewals annually which involved techniques to speed up the renewal process.
Confidential, New York, NY
Oracle DBA
Responsibilities:
- Involved in a major Database migration project from 9i to 10g.
- Post migration tuning of application and database to achieve optimal performance.
- Created shell scripts frequently for new jobs or to automate an existing job.
- Wrote procedures and functions to fulfill our needs accordingly.
- Implemented customized scripts on critical databases to receive email/pager notification as part of a proactive strategy.
- Analyzed performance problems on both production and warehouse and took reactive actions.
- Organized database by moving tables between tablespaces and trimming relevant tables by making backups to speed up the access and making backups smaller.
- Setup SQL *Loader scripts to run automatically to load data for the development and research team.
- Implemented flashback recovery mechanism for faster media recovery.
- Involved in installation of RHEL on Dell Poweredge Servers.
- Disk partition, iSCSI and RAID configuration in Windows and RHEL.
- Space management using Volume Groups and Logical Volumes.
- Migration of databases from windows to Linux operating system.
- Applying version upgrade, security (CPU) interim patches to databases.
Confidential, New York, NY
Oracle DBA
Responsibilities:
- Meet with clients to analyze their requirements and make decisions for Confidential implementation to meet their needs.
- Deployment of Confidential solution using 10g 5-Node/8-Node Confidential on HP-UX/RHEL.
- Installation of Confidential on shared device for Confidential on RHEL.
- Load balancing and Workgroup balancing using services.
- Tuned interconnect and eliminate contention in Confidential .
- Managed Dataguard in Confidential environment.
- Data modeling/logical database design using ERWin
- Involved in capacity planning and disaster recovery strategies.
- Provide 24x7 on call support and problem resolution as necessary.
- Data loading and extracting using SQL * Loader
- Implementation of Confidential with Dataguard using physical or logical standby.
- Troubleshoot Dataguard of many production environments.
- Shell and PL/SQL scripting for database automation
- Table partitioning using different kinds of partitions based on a client’s requirements.
- Fixing block corruptions occurred in table or index segment
- Creating and maintaining database links and materialized views for reporting purpose.
Confidential
Junior Oracle DBA
Responsibilities:
- Creating and maintaining all databases required for development, testing, training and production.
- Setup physical standby database as part of Confidential .
- Involved in system maintenance and health check using Spotlight.
- Reviewing and administering all database objects, including tables, clusters, indexes, views, sequences, packages and procedures
- Performing database re-organizations as required to assist performance and ensure maximum uptime of the database.
- Identifying inefficient SQLs and rewriting such SQLs.
- Creating schema objects like tables, indexes and sequences etc.
- Outlined backup and recovery strategies using import/export and RMAN.
- Refresh data for developers using import/export .