Database Engineer Resume
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Reston, VA
SUMMARY
- Ten years of experience in database administration, maintenance and performance tuning using DB2 LUW on UNIX and LINUX .
- Extensive DB2 UDB DBA experience on version 8.1/8.2/9.1/9.5/9.7/10.1/10.5/11.1 with activities involving design, installation, configuration, requirements gathering, data modeling, tuning, security, backup, recovery and integration of database applications.
- Experience in data Warehousing and OLTP databases with strong experience in handling critical applications running 24/7
- Extensive experience with planning, documenting and performing Database upgrades and migration.
- Extensive experience with setting up new database environments and create database servers and database server moves.
- Provided DBA 24x7 on call Support for companywide UDB Production databases
- Experience in database software management (patch and version management).
- Experience in problem analysis and troubleshooting database related issues. Provide performance tuning support to development teams for resolving issues with space usage, stored procedures, SQL Tuning and application monitoring.
- Experience with case management of IBM DB2 technical support
- Experience with column organized BLU tables in 10.5.
- Experience in Performance Tuning, Space Management and Planning Backup & Recovery strategies.
- Preformed multiple installations and upgrades of DB2 across different versions and fixpacks.
- Implemented DB2 Row/Index Compression .
- Setup HADR environments using TSAMP with virtual IP.
- Worked with Gaurdium and Vormetric for monitoring and database encryption.
- Performing day - to-day database administration maintenance tasks.
- Proficient in shell scripts for various kinds of administration tasks.
- Ability to work within cross-functional teams.
PROFESSIONAL EXPERIENCE
Confidential, Reston VA
Database Engineer
Responsibilities:
- Certify new versions and fixpacks of DB2.
- Create BladeLogic packages/scripts to automate teh DB2 installation (DB2 9.7,10.1,10.5,11.1)
- Support production DBAs in resolving any level 3 issues
- Assisted developers with teh performance test initiatives. Performed index analysis and made recommendations to development teams.
- Review and validate teh database requirements for any new applications
- Create teh SOP documents for multiple database related activities, which are used by teh production DBAs.
- Setup IBM IIDR 11.3 (CDC) for DB2
- Setup IBM DSM for database monitoring
- Worked on multiple database upgrade projects.
- Created multiple shell scripts for maintenance activities.
- Completed a POC on IBM BLU
- Created scripts for database creation, retirement, database capacity, etc..
- Worked on a 30 TB, 33 node DPF database migration from AIX to Linux
- Tested and setup EMC DDBOOST as a replacement for IBM TSM for backups.
- Setup multiple HADR environments with TSAMP.
- Extensively involved in capacity planning for databases.
- Setup a Gloden Gate environment for DB2 replication.
- Worked on setting up a MongoDB environment for a POC.
- Completed a POC on virtualization of Db2 databases using Delphix.
- Environment: UDB DB2 9.7, 10.1 and 10.5, AIX, Linux, Solaris,TSM, IBM DSM, IIDR
Confidential, Columbus OH
DB2 UDB Database Administrator
Responsibilities:
- Instance and database creation and configuration.
- Database utility experience including reorg, runstats, rebind, export, import, load utilities.
- Database backup and recovery experience with online full and incremental backups, nline and offline transaction log archiving, restore and roll-forward (including redirected restore)
- Worked with multiple applications using Websphere Commerce,ICM, Portal and SAP ECC,BI.
- Good working noledge of SAP Cockpit for LUW V9.x, V10.x.
- High availability (HA) and disaster recovery (DR) experience with DB2 HADR, offline transaction log shipping, split mirror images.
- Performed multiple upgraded from DB2 9.7 to 10.1 and 10.5.
- Install and configure DB2 UDB new releases, upgrades, and patches.
- Performing SQL tuning, DB/DBM parameter tuning and different levels of memory allocations.
- Instance and database monitoring and tuning experience using teh Snapshot and Event monitors to monitor and optimize instance and database configuration parameters, table spaces, and buffer pools.
- Extensively involved in performance tuning, recommending SQL queries for better performance using visual explain, index adviser, db2expln, db2exfmt.
- Interface with business analysts & developers with regards to application, logical & physical database design, create and maintain logical entity relationship diagrams, transform logical models into physical data models.
- Changing instance level and database level configuration parameters for database concurrency, autantication, performance and allowing remote clients accessing server.
- Assisting with teh creation and modification of primary database storage structures (tablespaces) and primary objects (tables, views, indexes).
- Perform capacity planning and analysis and implement required changes on teh database servers.
Environment: UDB DB2 V9.5, 9.7, 10.1 and 10.5, AIX, Linux, Optim Performance ManagerNetbackup, IBM Data Studio
Confidential, Seattle WA
DB2 Database Administrator
Responsibilities:
- Installed DB2 V9.7 FP5 on over 300 servers, production and dev included.
- Upgraded approximately 300-400 databases and instances from V9.1 to V9.7.
- Migrated version 8 instances and databases to version 9.7
- Applied fixpacks to DB2 V8.1 instances.
- Performed multiple fix-pack upgrades.
- Performed backups/restores.
- Upgraded teh servers from 9.1 to 9.7 with HADR databases.
- Was involved in performance tuning of slow running queries.
- Resolved DBA help desk tickets.
- Built out new servers.
- Rebuilt indexes.
Environment: UDB DB2 V9.1, V9.5, V9.7 UNIX-Sun Solaris / AIX, DB Visualizer
Confidential, Tampa FL
DB2 Database Administrator
Responsibilities:
- Upgraded production systems from 9.1 to 9.5 and from 9.5 to 9.7
- Involved in new server builds and installations.
- Was responsible for data migration from Confidential to Confidential .
- Identified and corrected data functions that are slow or expensive in terms of system resources.
- Supported high transaction OLTP databases.
- Developed queries to isolate, correct or eliminate redundant or bad data.
- Experience with enterprise backup and recovery strategies.
- Creating primary database storage structures (tablespaces etc.).
- Creating primary objects (tables, views, indexes etc.).
- Collecting database resource & CPU utilization in busy hours & idle hours and doing maintenance through reorganizing, collecting statistics and rebinding of packages.
- Modifying teh database structure, as necessary, after collecting information from application developers and based on statistics gathered.
- Configuring high availability & disaster recovery.
- Monitoring and optimizing teh performance of teh database, tuning database performance.
- Backing up and restoring teh database, bringing database from no archive to archive mode, maintaining archived data on tape.
- Monitor and estimate teh disk requirements.
- Stand-by database management, log shipping and applying, DR drills to ensure smooth working of standby database in event of disaster, switch-over.
- Data maintenance through import, export & load.
- Handling database related production issues.
- Extracted data from DB2 for migration to Oracle and worked with teh ETL teams.
- Provided 24x7 on call support.
Environment: UDB DB2 V9.1, V9.5, V9.7 UNIX-Sun Solaris / AIX, Quest Central
Confidential, Tampa, FL
DB2 Database Administrator
Responsibilities:
- Supported DB2 UDB databases on Versions 8.2 and 9.1 on both OLTP and DW environments.
- Providing support to System Administration (SA) in database installation, instance creation, instance upgrade and version migration from V 8.2 toV 9.1.
- Design, analysis and creation of new databases (analysis about number of database partitions, available memory, database size, database & database manager configuration options).
- Tested and implemented teh row compression feature to save disk space in production environments.
- Managing Database user privileges (granting & revoking permissions after proper analysis & approval).
- Database performance tuning and troubleshooting, resolving database issues for teh dev support.
- Responsible for creating databases and objects such as table-spaces, tables, primary keys, indexes etc.
- Supported Data Migration for Confidential databases. Maintained referential integrity and referential constrains, using both EXPORT and IMPORT for data move to Confidential Servers.
- Query tuning for teh problematic queries sent by application developer or identified during database monitoring.
- Database monitoring (free space in tablespaces, event monitor outputs, security audit reports, performance reports etc.).
- Database backup & recovery (offline & online backups, Full, Incremental & Delta Incremental) High Availability Disaster recovery (HADR).
- Database cloning using redirected restores.
- Perform capacity planning and analysis and implement required changes on teh database server.
- Analyze application SQL for performance improvement opportunities and work with DB2 support on problems and questions.
- Supported high transaction OLTP databases.
- 24*7 Support for availability of Mission Critical Databases.
Environment: UDB DB2 V8.1/8.2/9.1, Windows NT, UNIX-Sun Solaris / AIX, Quest Central