Sr. Database Administrator Resume
New, YorK
SUMMARY:
- Have over 12 years of focused experience in IT industry
- Comprehensive experience as Oracle DBA in various fields like Insurance, Retail and Telecom, Extensive experience in relational database design, analysis, development, administration, implementation, trouble shooting and quality management.
- Extensive experience in 11gr2 RAC, Exadata, ASM,RMAN, Data Guard, Golden Gate
- Oracle Certified Professional ( OCP DBA) in 10g
- Worked in 24x7 production environment and provided on - call and day-to-day support.
- Comprehensive experience as performance Tuning/Table Partitioning ( OLTP and Data wareHousing ) Oracle RAC/ASM DBA Experience
- Installing & configuring and supporting RAC/ASM environment
- Clusterware & Database Software (Troubleshooting using cluvfy & handling common issues that arise during integration of the whole - bugs, network issues, configuration files issues, OCR issue, deinstallation & cleanup of clusterware)
- Worked with customer for different RAC related issue: Cluster startup issue, ASM disk header corruption, Node eviction, ASM memory Increase, multiplex voting disk, OCR issues, Service Relocation
- Troubleshoot performance issues for the RAC instances
- RAC database restore and backup & cloning
- Upgrade of 10g R2 RAC to 11g R2 RAC
- Patching RAC cluster and database Oracle Golden Gate DBA Experience
- Installing & configuring golden gate environment
- Performing Initial Data load, configure extract, datapump, manager & replicate process
- Troubleshooting golden gate abend process, handcollison & lag issues,logdump
- Implemented Oracle Golden Gate for table level replication with multiple extract replicate processes. replicating huge & mixed number of tables
- Implemented Golden Gate from Oracle to replicating databases using Oracle Golden Gate between homogeneous and heterogeneous databases.
- Oracle DBA Experience (11g/10g/9i)
- Migrated Non-ASM Single Instance to ASM RAC Instance.
- Manage RAC environment for Day to Day Database administrator
- Expertise in Oracle Data Guard and Physical Standby databases,
- Expertise in Oracle Enterprise Manager (OEM), TOAD,
- Expertise in DataPump ( Expdp,Impdp), SqlLoader, Materliazed View
- Experience in Migration of DB2 to Oracle database
- Expertise in Performance tuning the production database towards optimal performance
- Experience in capacity planning, Space management, database Upgrades/Migration planning/implementing Backup/recovery strategies using RMAN
- Strong Exposure in writing Simple and Complex SQLs, PL/SQL Functions and Procedures, Packages and PL/Sql- Tables, Materialized views
- Extensive experience on using SQL, PL/SQL, ORACLE Database, and many other ORACLE facilities, such as Import/Export, SQL*Loader and SQL*PLUS.
- Proficient in writing complex SQL Queries, stored procedures, Normalization, Database Design, creating Indexes, Functions, Triggers, Sub Queries
- Experience in handling all XML specific storage models (Unstructured, Structured - Schema Based and Binary XML-11g
- Using SqlLoader to Load XML and flat files in oracle database
- Extensively Used the XML SQL Oracle (Extract, ExistsNode, ExtractValue, XMLSequence, Append ChildXML) functions to generate, insert and manipulate XML files in Oracle 11g
- Creating and translating business process specifications into design specs and XML business rules.
- Highly skilled in Performance tuning - analyzing query plans and query tuning using the tools such as EXPLAIN PLAN and use hints wherever required. Session Tracing, AWR reports
- Data Modelling using Erwin
- Source data analysis, table design using Erwin, Improved designs for ease of data loading
- Changed architecture and mapings as needed to improve performace
- Business analysis and data model design for new tables related to ETL
- Design and create database tables needed for application
- Experience in understanding complicated performance issues and worked with DBA's to suggest valuable ways to fix the problem.
- Significant experience working with clients, technical teams for executing concurrent multi-technology projects.
- Good ability to quickly grasp and master new concepts and technologies.
- Involved in handling the changes in compiling scripts according to the database changes
- Developed reports using complex queries as per client request as a part of production support
- Performed SQL tuning using Explain Plan, Hints and indexes
- Responsible for performing code reviews
- Created SQL*Loader scripts to load data into temporary staging tables
- Data types conversion and mapping between different source
TECHNICAL SKILLS:
Operating Systems: Windows 98/2000/NT/XP, MS-DOS and UNIX,AIX,LINUX
Application Domain: Telecom, Retail, Health care, Insurance, Banking,SAP
Tools: MS Office,Brtool, Toad, SQL Developer, OEM, File zila, Putty, BMC Remedy
Databases: Oracle 9i/10g/11gr2 RAC, ASM, RMAN, Data Guard, Golden Gate
PROFFESIONAL EXPERIENCE:
Confidential, New York
Sr. Database Administrator
Responsibilities:
- As a Sr. Database Administrator, I am Responsible for administration of all Oracle Databases of design architect and migration project.
- Working on 12c database and 11 g rac database
- Resolve the performance issues of Oracle11g databases.
- Handle daily production issues and migration of oracle database
- Rman cloning, back up and recovery and export and import
- Ongoing proactive database-level performance tuning, with a good working knowledge of Oracle internals.
Confidential, New York
Sr. Database Administrator
Responsibilities:
- As a Sr. Database Administrator, I am Responsible for administration of all Oracle Databases of design architect and migration project.
- Working on 12c database and 11 g rac database
- Resolve the performance issues of Oracle11g databases.
- Handle daily production issues and migration of oracle database
- Data load using sql loader for production data into non production data
- Ongoing proactive database-level performance tuning, with a good working knowledge of Oracle internals.
Confidential, San Jose, CA
Sr. Database Administrator
Responsibilities:
- As a Sr. Database Administrator, I am Responsible for administration of all Oracle Databases of design architect and migration project.
- Advanced Backup and Recovery using Oracle’s RMAN software; used offline/online for recovery in a production environment via Korn shell scripting.
- Implemented High availability using Golden Gate Replication
- Troubleshooting golden gate abend process, handcollison & lag issues,logdump
- Resolve the performance issues of Oracle11g databases.
- Handle daily production issues and migration of oracle database
- Data load using sql loader for production data into non production data
- Manage databases in a 24x7 mission-critical production environment
- Ongoing proactive database-level performance tuning, with a good working knowledge of Oracle internals.
Confidential
Sr. Database Administrator
Responsibilities:
- As a Sr. Database Administrator, I am Responsible for administration of all Oracle Databases Confidential Project Europcar, Orange, Sequana, Gefco
- Advanced Backup and Recovery using Oracle’s RMAN software; used offline/online for recovery in a production environment via Korn shell scripting.
- Installation of RAC and Managing RAC Environment efficiently
- Managing Exadata database servers for two nodes clusters
- Mentor other DBAs in effective use of RMAN software, and my scripts.
- Resolve the performance issues of SAP Oracle databases.
- Handle daily production issues and migration of SAP
- Manage SAP databases in a 24x7 mission-critical production environment
- Ongoing proactive database-level performance tuning, with a good working knowledge of Oracle internals.
- Implemented High availability using Golden Gate Replication
- Troubleshooting golden gate abend process, handcollison & lag issues,logdump
- Currently helping team to use existing infrastructure to achieve maximum benefit to reduce cost and maximum performance.
- Actively working with other teams for Server Consolidation & Database Consolidation.
- Changes were made dynamically whenever possible to fulfill high-availability requirements.
- Enforced need of regular data purging processes from production, design and development, to deployment.
- Implemented and maintained Oracle 10g/11g Data Guard/standby databases for fail-over purposes.
- Propagation from primary to standby via automated scripts, and sometimes uses standby databases to immediately restore primary database.
- Proficient in RAC Performance Tuning. Create and maintain materialized views.
- Implementing and maintaining database security (create and maintain users, roles and assign privileges)
- Database tuning, Application Tuning & performance monitoring. Fine tuning Initialization parameters, I/O, Memory and Operating System kernel parameters.
- Managed appropriate use of freespace within tablespaces, reclaimed space whenever possible. Reorganized tables and indexes within databases when needed.
- Monitored the production Oracle alert logs for database errors.
- Monitored system resource availability and responded to system memory and data issues.
- Expert with OEM Grid Control.
Environment: SAP application, BO application with Oracle Database RAC 11gr2Single Instance 10g & 11g . Database Backup Schedule with RMAN using netbackup and
Confidential, New York
Lead Database Administrator
Responsibilities:
- DBA Lead and supporting 11gr2 RAC database
- Provided production database support for Application
- Helped other team members to complete PL/SQL code development and sql tuning
- Managed and coordinated with other team for database deployment in production.
- Provided support to QC and DEV database for application testing and coding.
- Provided business reports to management from reporting database
- RAC 11gr2 installation and configuration on prod and non prod database servers
- Single sign on implementation of oracle virtual directory in 11g
- Configure OIM ( Oracle identity manager) for application
- Integration with OVD ( Oracle virtual directory) and Active directory
- Understanding of Import users, account, roles, Policies, Business structure in OIM
- Configure the Oracle Identity Manager Data Collection Scheduler
- Import the Oracle Identity Manager (OIM) Data Into Oracle Identity Analytics
- Configure Oracle Identity Analytics to Connect to Oracle Identity Manager
- Scheduling Incremental Updates of Users, Accounts, User-Role Memberships, and Entitlements in OIM
- Using DBMS Scheduler for batch jobs
- Datapump expdp and impdp for data transfer
Confidential, Chicago, IL
Lead DBA and ETL Developer
Responsibilities:
- Project Lead and supporting 11gr2 RAC database
- Managing and coordinating with other team for database deployment in production.
- Providing support to QC and DEV database for application testing and coding.
- Developed PL/SQL packages, procedures and functions accordance with business requirements for loading data into database tables.
- Involved in unit testing of stored procedures and functions.
- Created materialized views and partitioning tables for performance reasons.
- Worked on various backend procedures and functions using PL/SQL.
- Troubleshoot performance issues and bugs within packages, forms, and reports using dbms output, Forms debugger, explain plan.
- Developed UNIX shell scripts to perform a nightly refresh of the test system from production databases.
- Created SQL*Loader scripts to load data into the temporary staging tables.
- Designing Tables, Constraints, Views, and Indexes etc. in coordination with the application development team
- Used TOAD, PL/SQL developer tools for faster application design and developments
- Developed procedures using Dynamic SQL.
Environment: Java J2ee application, data stage, cdc, golden gate, Naca tool with oracle database 10g/11g
Confidential, Georgia
Lead DBA and PL/SQL Developer
Responsibilities:
- DBA Lead and supporting business online application
- Production database support for Application
- Helping team to complete pl/sql code development and sql tuning
- Managing and coordinating with other team for database deployment in production.
- Providing support to QC and DEV database for application testing and coding.
- Provide business reports to management from reporting database
- Sql loader to load the bulk data in database
- Implementation of request for Change in database
- Database Cloning from prod to non prod
- Deploy the database build as release
- Upgrade 10g to 11g single database instance
- Database data testing
- Writing Trigger, Procedure, Package for application
- Writing queries and helping application for performance issue
- Making business reports using sqls
- Writing shell script for batch jobs
- Support application testing for data validation
Environment: Java application, OLTP business with retail Confidential & Confidential domain, UNIX and Win. NT
Confidential
Lead DBA and PL/SQL Developer
Responsibilities:
- Actively managed 40 database instances
- Provided 24*7 Support to database
- Responsible for database installation, instance creation, patching and upgrading, also involved in storage space management and planning
- Co-ordinated batch testing and load and performance testing
- Provided support to additional support to other projects
- Database backup and recovery
- Trouble shoot database related issues
- Developed stored procedures to extract the data from different sources and load it into data warehouse.
- Involved in creating detailed Functional Documentation which includes all Business requirements and Technical specifications.
- Used Oracle PL/SQL for implementing business rules and do performance tuning procedures.
- Created data mapping files for the data coming from different web services.
- Coded PL-SQL packages and procedures to perform data loading, error handling and logging. Tied the procedures into an existing ETL process.
- Developed procedures using Dynamic SQL..
- Worked for designing Logical and Physical data models for Master Data and Transactional Data. knowledge and experience in structured systems analysis and design techniques
- Developed database objects including tables, clusters, Indexes, views, sequences, packages, triggers and procedures to troubleshoot any database problems.
- Worked with ETL team and architect to build data model for staging area.
- Prepare the Mapping document which details out the mapping of source to the target data model with application of business rules.